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JLh, State of Connecticut State Geological and Natural History Survey Bulletin No 26 THE ARTHROSTRACA OF CONNECTICUT B W KUNKEL ^^^f \ ^^ Professor of Biology, Lafayette College HARTFORD Published by the State 1918 ^^^ 1986 BULLETINS OF THE State Geological and Natural History Survey of Connecticut First Biennial Report of the Commissioners of the State Geological and Natural History Survey, 1903-1904 A Preliminary Report on the Protozoa of the Fresh (Out of Waters of Connecticut: by Herbert William Conn print To A be obtained only in Vol i, including Bulletins 1-5.) Preliminary Report on the Hymeniales of Connecticut: by Edward Albert White The Clays and Clay Industries of Connecticut: by Gerald ncis Loughlin The Ustilaginese, or Smuts, of Connecticut: by George Perlnns Clinton Manual of the Geology of Connecticut: by William North (Out of print, except in Rice and Herbert Ernest G-regory bound volume.) Preliminary Geological Map of Connecticut : by Herbert Ernest Gregory and Henry Hollister Robinson Bibliography of Connecticut Geology : by Herbert Ernest Gregory Second Biennial Report of the Commissioners of the and Natural History Survey, 1905- 1906 10 A Preliminary Report on the Algae of the Fresh Waters of Connecticut by Herbert William Conn and Lucia Washburn (Hazen) Webster 11 The Bryophytes of Connecticut: by Alexander William Evans and George Elwood Nichols 12 Third Biennial Report of the Commissioners of the State Geological and Natural History Survey, 1907- 1908 The Lithology of Connecticut: by Joseph Barrell and 13 State Geological : Gerald Francis Loughlin CATALOGUE Connecticut By State geological SLIPS and natural history surveij Bulletin 26 The Arthrostraca of Connecticut B W Kunkel Hartford, 1918 261 pp., 84 fig8., Bibliography, p 25*^'" 258-261 Kunkel, Beverly Waugh, 1881 The Kunkel Arthrostraca of Hartford, 1918 261 pp., 84 %.«., Bibliography, p 25«">., 258-261 — Connecticut By B W )) CATALOGUE SLIPS Zoology W Kunke], B Hartford, 1918 261 pp., 84 (Bulletin figs., The Artbrostraca of CoDnecticut 25' "' no 26, Connecticut geological and natural history survey Bibliography, p 258-261 Crustacea Kunkel, B W The Artbrostraca of Connecticut Hartford, 1918 261 pp., 84 figs., 25"" (Bulletin no 26, Connecticut geological Bibliography, p 258-261 and natural history survey ^ictie of (SLoniTcciicut PUBLIC DOCUMENT No 47 State Geological and Natural History Survey HERBERT E GREGORY, SUPERINTENDENT Bulletin No 26 Hartford Printed by the State Geological and Natural History Survey 1918 State Geological and Natural History Survey COMMISSIONERS Marcus H Holcomb, Governor of Connecticut Arthur Twining Hadley, President of Yale University William Arnold Shanklin, President of Wesleyan University Flavel Sweeten Luther, President of Trinity College Charles Lewis Beach, President of Connecticut Agricultural College Frederick Henry Sykes President of Connecticut College for Women SUPERINTENDENT Herbert E Gregory Publication Approved by the Board of Contra No ARTHROSTRACA OF CONNECTICUT 26.] Porcellio rathkei, Paulmier, Bull N Y State Mus., 1905 No 91, 247 183 p Body oval, somewhat broader surface rather convex and lateral lobes well developed, in rounded female than male tuberculated slightly ; dorsal ; Head with frontal lobe short, obtusely triangular Second pair of antennae rather slender, nearly one-half as long as body; flagellum about as long as last joint of peduncle and made up of two joints of which the proximal one is shorter than the terminal one Thorax with coxal plates moderate, subcontiguous, posterior corners obtusely acuminate in and with Last pair of legs stronger male than female and with carpus remarkably dilated near the base Abdomen scarcely one- fourth as long as whole to fifth coxal plates body well developed and recurved plates all provided with air spaces ; third Opercular Telson subtriangular, with Uropods with outer part acutely produced and smooth above outer rami broadly lanceolate and with the inner one extending considerably beyond the last abdominal segment Color, variable Length lo mm Distribution Europe Ohio New York City Lake ChamMichigan Maine Massachusetts Providence, Rhode plain Island New Haven, Connecticut Washington, District of Colum"^ bia Texas Georgia The species is very common under stones, boards, etc It is found very often in woodsheds and greenhouses It is distinguished from the other species of the genus by its white spots on a gray to black ground; and by the antero-lateral lobes of the head which are smaller than in P spiiiiconiis ; ; : ; ; ; ; ; ; ; ; ; Metcponorthus pruinosus (Brandt) 1899 vol 2, p 1902 Metoponorthus pruinosus, G O Sars, Crust Norway, 184, pi 80, State Mus., 1905 fig Metoponorthus pruinosus, p Stoller, 54th Rept N Y 213 Metoponorthus pruinosus, Richardson, Mus., No 54, p 627 Bull U S Nat ; CONNECTICUT GEOL AND NAT HIST SURVEY 248 Metoponorthus pminosus, Paulmier, 1905 Mus., No 91, p Bull [Bull N Y State 183 i Fig 82 ~4 MetopoiiortJius pminosus Body oblong-ovate, twice as long as wide Head twice as wide as long, with anterior margin slightly convex and anterolateral lobes small Eyes small, composite, situated at base of antero-lateral lobes and inconspicuous Second pair and third each twice as long as first; fourth twice as long as third; and fifth one and a half times as long as preceding; flagellum composed of two joints, the first of which is twice as long as the second and, taken together, First pair of antennse small with first joint short; second almost as long as fifth peduncular joint; whole appendage ex- tending as far as posterior margin of fourth thoracic segment First segment of thorax a little longer than any of the others which are subequal Antero-lateral angles of first segment produced forward to surround the head and extending to base of antero-lateral lobes of head Epimera not distinctly separated from the segments Abdomen distinct; first fourth, and abruptly narrower than thorax two covered fifth laterally segments with sixth segment triangular in by the All six segments last thoracic; third, expanded form and half as long as wide at lateral parts not greatly ; No ARTHROSTRACA OF CONNECTICUT, 26.] the base, apex acute and with 249 shght concavity in its dorsal surface Uropods with peduncle not extending as far as apex of last abdominal segment outer ramus lanceolate and more than twice ; as long as last segment of abdomen ; inner ramus about one-third as long as outer one ; and posterior Color, brown lateral margins other parts of a lighter color of uniform reddish Surface of body slightly granulated Length mm Distribution Ohio Kansas California Utah New Mexico Texas Florida Washington, District of Columbia Virginia Maryland New York City Massachusetts West Indies Bermuda Bahamas Europe North Africa Venezuela The species is found under logs and decaying vegetable matter, in greenhouses, along walls, and in dwellings It may be distinguished from other terrestrial forms by the fact that the abdomen is abruptly narrower than the thorax : ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Actoniscus ellipticus Harger Fig 83 1878 vol Actoniscus ellipticus, Actoniscus ellipticus Harger, Amer Jour Sci., ser 3, Richardson, Bull U S Nat 15, p 373 1905 Actoniscus for 1878, p 309, pi ellipticus, I, fig CONNECTICUT GEOL AND NAT HIST SURVEY 250 Actoniscus 1905 Mus., No 54, ellipticus, Richardson, Bull U [BuU Nat S p 634 Body rather broadly Head broader in wide oval and depressed, twice as long as front than behind with antero-lateral oval, situated at sides rounded lobes, angularly beyond lateral lobes Eyes small, black, of median triangular process Antennae with joint short; second joint enlarged distally, angles produced in broad, diverging, produced middle in line first especially on inner side; third joint scarcely as long as second, clavate, and articulated at an angle with the preceding one; fourth joint longer than third; fifth longer, slender, slightly still bent at the base and so forming an angle with the fourth lum shorter than last joint of which the second and the third are longer than the in turn is longer than the fourth indications of ; flagel- of peduncle, composed of four joints ; first which terminal segment showing another rudimentary segment and tipped with setae segment excavated in front for the accommodasucceeding segments subequal tO' the seventh the shortest; first segment prolonged laterally to about length on the mid-dorsal line the second and in an First thoracic tion of the which is twice its head ; ; increasing degree, the succeeding segments, produced backwards at the sides Legs rather small and weak and of uniform size, ambulatory Abdomen with first two segments having their lateral lamellae obsolete and concealed by the seventh thoracic segment; third, fourth, and fifth segments produced laterally into broad plates which are curved backwards, and whose margins continue the even contour of the thorax; last segment not as long as wide, rounded posteriorly Uropods terminal with peduncles which are expanded so that they continue the contour of the body and are larger than the expansions of the fifth segment; ramus styliform and tipped with setae; inner pair arising from near the base of and extending very slightly beyond the outer ones from a notch near the middle of the inner margin of the peduncle and surpass slightly the expanded lobe of the the peduncles which arise peduncle Color, slaty gray Length mm No ARTHROSTRACA OF CONNECTICUT 26.] This species has been found at Savin Rock, near and Stony Creek, Connecticut, in 251 New Haven, company with Philoscia vittata Say, by Professor Verrill ARMADILLIDID^ Body convex, contractile into a ball Antennae comparatively small, with fiagellum bi-or triarticulate Head flanked by side plates of first thoracic segment, front margin subtruncate, lateral lobes distinct; median lobe obsolete; epistome vertical Mouth parts similar in structure to those of the Oniscidse Legs comparatively short and uniform in structure, ambula- tory Abdomen Terminal segment short two pairs of pleopods, or of Uropods short, not exall five pairs, provided with air spaces tending beyond the limits of the last segment and lateral plates and broad not abruptly contracted Opercular plates of first of the fifth segment Armadillidium vulgare (Latreille) Fig 1818 Armadillo 84 Armadillidium vulgare pitularis, Say, Jour Acad Nat Sci Phila., vol I, p 432 1841 1899 Armadillo pitularis, Gould, Invert Mass., p 336 Armadillidium vulgare, G O Sars, Crust Norway, vol 2, p 189, pi 82 ; CONXECTICUT GEOL AND NAT HIST SURVEY 252 Armadillidiiim viilgare, Richardson, Bull U S Nat 1905 Mus., No 1905 [Bull 54, p 666 AnnadilUdnini vidgare, Paulmier, Bull N Y State Mus., No 91, p 184 Body oblong-ovate with lateral margins subparallel, rather convex and able to be rolled up into a ball twice as long as wide ; abdomen Head much wider one-fifth the length of the body than long, transversely truncated in front with lateral lobes small Eyes small, round, compound, and situated and rounded laterally First antennas rudimentary Second pair and inconspicuous one-fourth as long as body; second joint four times as long as first; third joint one-half as long as second the fourth joint as long as- fifth is and shorter than which is one-half as long as the fifth; flagellum joint, composed of two joints of which the first the shorter Thoracic segments subequal, coxal plates not the first segment with posterior angle acute distinct, those of Last pair of legs with ischium large but not, in accordance with Sars's description, as long as the succeeding joints Abdomen semicircular, as wide as thorax ; two segments first covered at the sides by the seventh thoracic segment ment much shorter than wide Last seg- at the base, slightly tapering distally, transversely truncated Uropods not longer than terminal segment of abdomen outer ramus much shorter than peduncle, which is not visible from above, and very broad inner ramus narrow and elongate, not extending beyond extremity of abdomen tip ; ; Color, sometimes uniformly dark grey or nearly black, some- times variegated with lighter patches Length 16 mm world wide; Algeria; Azores; Bermuda; Louisiana; Texas; Mississippi; Kentucky; Washington, District of Columbia; South Carolina; New York; Long Island; Ohio; Massachusetts; Rhode Island; New Haven, Connecticut This species is found under stones in cellars under boards Distribution: ; in damp in greenhouses as well as to soil ; in hothouses Louisiana and Texas ; some plants grown young cotton and mushrooms in It is injurious to : No ARTHROSTRACA OF CONNECTICUT 26.] 253 can be distinguished from other terrestrial forms by the short uropods which not project behind the telson which is It truncate SCYPHACID^ Head without median or antero-lateral lobes Front not margined but continuous with the epistome Second pair of antennae with flagellum composed of four joints Mandibles without molar tubercle two plumose setse lobe furnished with First maxillae with inner outer lobe furnished with ; Maxillipeds with masticatory lobe acutely produced; palp teeth elongate Abdomen tip of Uropods extending beyond not abruptly contracted abdomen ; inner ramus inserted at upper inner margin of peduncle Scyphacella arenicola Smith 1874 Scyphacella arenicola, Smith, Rept U S Com Fish, for 1871-2, p 568 1880 pi Scyphacella arenicola, Harger, for 1878, p 307, ibid., I, fig 1905 Scyphacella arenicola, Richardson, Bull U S Nat Mus., No 54, p 671 As I have not met with this species myself quote Professor I Smith's original description " Body elliptical ; abdomen not abruptly narrower than the thorax; the whole dorsal surface, except the extremity of the abdomen, covered with small, depressed tubercles which give rise to minute spinules eyes prominent, round antenna a little longer than the breadth of the body first and second segments short, equal third, fourth, and fifth successively longer, the fifth being rather longer than the terminal portion, which is more slender than the fifth segment, tapers regularly to the tip, and is composed of three successively much shorter segments, and a very short somewhat spiniform, but obtuse, terminal one all the segments, except the minute terminal one, scatteringly beset ; ; ; ; ; with spinules last ; legs beset with small spines ; the ischial, meral, and propodal segments subequal terminal process of the segment of the abdomen narrow, triangular, with the apex carpal, ; CONNECTICUT GEOL AND NAT HIST SURVEY 254 [Bull rounded, and the dorsal surface a little concave posterior caudal appendages much shorter than the abdomen rami slightly unequal, the outer stout, spinulose the inner a little shorter and slightly ; ; ; much more slender." nearly white, with chalky white spots and scattered, blackish dots arranged irregularly; in specimens preserved in alcohol, dark brown, with the margins of the segments Color, in life, of a lighter brown mm Length 3-4 Distribution: Great Egg Harbor, New Jersey; mouth of Sound, Woods Hole, Massachusetts Nantucket The species has not yet been reported from Connecticut waters, but may be expected inasmuch as it Choptauk River, Maryland; Vineyard ; occurs both to the north and south According to Professor Smith, it burrows beaches just above ordinary high-water mark in the sand of LIST OF FIGURES Page of head and mouth parts Fig I Details Fig Internal Fig Ideal cross section of a female in situ of Orchestia agilis 19 anatomy of an ideal Gammarid, after Stebbing 27 30 Gammarid Fig Hyperia galba (Montague) 46 Fig Lysianopsis alba Holmes Fig Tmetonyx quadratus 53 56 Fig Orchomenella pinguis (Boeck), habitus figure Fig Fig Fig II Ampelisca macrocephala Lilljeborg, after Sars Ampelisca spinipes Boeck, after Sars Byblis serrata Smith Haustorius arenarius (Slabber), after Sars Fig 12 Phoxocephalus Fig 13 Parapho'xus spinosus Holmes 'jy Fig 14 Stenothoe cypris Holmes 79 Fig 15 after Fig 10 sp nov Sars holbolli (Kroyer), after Sars 59 62 64 68 71 74 Stenothoe minuta Holmes 81 Fig 16 Sympleustes glaber (Boeck), after Sars 85 Fig 17 Calliopius Iseviusculus (Kroyer), habitus figure Fig 18 Batea secunda Holmes Pontogeneia inermis (Kroyer), after Sars Eucrangonyx gracilis (Smith) Crangonyx tenuis Smith Melita nitida Smith Melita dentata (Kroyer), after Sars loi Fig 25 Elasmopus levis (Smith) Dikerogammarus fasciatus (Say) 104 106 Fig 26 Gammarus after Fig 19 Fig 20 Fig 21 Fig 22 Fig 23 Fig 24 Fig 28 87 , after Fig 27 Sars locusta (Linnaeus), habitus Sars Gammarus Gammarus 89 92 94 96 99 figure 108 annulatus Smith no m^arinus Leach, after Sars 112 255 256 CONNECTICUT GEOL AND NAT HIST SURVEY Fig 29 Carinogammarus [Bull Page Fig 30 mucronatus figure after Paulmier Dexamine thea Boeck Fig 31 Orchestia agilis Smith drawing shows the (Say), habitus 114 116 The upper right hand sperm duct when enlarged 119 at the breeding season Fig 32 Orchestia palustris Smith 121 Fig 33 Talorchestia longicornis (Say) 123 Fig 34 125 Fig 35 Talorchestia megalophthalma (Bate) Hyale prevostii (Milne-Edwards), habitus figure Fig 36 Hyalella knickerbockeri (Bate), after Smith Fig 37 Allorchestes littoralis Stimpson, after Paulmier 131 Fig 38 Microdeutopus gryllotalpa Costa, after Sars 134 Fig 39 Lembos Fig 40 Photis reinhardi Kroyer 127 after Sars smithi , (Holmes) 129 137 140 Fig 41 Podoceropsis nitida (Stimpson), after Sars Fig 42 Leptocheirus pinguis (Stimpson) 145 Fig 43 148 Fig 46 Amphithoe longimana Smith Amphithoe rubricata (Montagu), after Sars Grubia compta (Smith) Jassa marmorata Holmes, after Paulmier Fig 47 Ischyrocerus anguipes Fig 48 Cerapus tubularis Say, after Smith Fig 44 Fig 45 after Kroyer, habitus 142 150 152 155 figure Sars 157 160 Fig 49 Ericthonius brasiliensis (Dana), after Sars 164 Fig 50 Unciola irrorata Say 166 Fig 51 Fig 52, Siphonoecetes smithianus Rathbun Corophium cylindricum (Say) 172 Fig 53 ^ginella longicornis (Kroyer) 175 Fig 54 Caprella linearis (Linnaeus) 177 Fig 55- Caprella geometrica Say 179 Fig 56 Tanais cavolinii Milne-Edwards, after Sars Fig 57 Fig 58 Leptochelia savignyi (Kroyer), after Harger 169 Cyathura carinata (Kroyer), after Harger Fig 59 Ptilanthura tenuis Flarger, after Fig 60 Fig 61 Cirolana concharum (Stimpson), after Harger ^ga psora (Linnaeus), after Harger Fig 62 ^gathoa oculata (Say), after Harger Harger 194 195 199 201 203 205 208 No 26.] ARTHROSTRACA OF CONNECTICUT 257 Page 211 Fig 65 Livoneca ovalis (Say), after Smith Limnoria lignorum (Rathke), after Harger Sphseroma quadridentatum Say, after Harger Fig 66 Chiridotea coeca (Say), after Harger 215 217 220 222 Fig 6^ Fig 64 209 213 Fig 67 Chiridotea tuftsii (Stimpson), after Harger Fig 68 Idothea baltica (Pallas), after Harger Fig 69 Idothea phosphorea (Harger), after Harger Fig 70 Fig y6 Edotea triloba (Say), after Harger Edotea montosa (Stimpson), after Harger Erichsonella attenuata (Harger), after Harger Erichsonella filiformis (Say), after Harger Asellus communis Say, after Smith Jsera marina (Fabricius), after Sars Oniscus asellus Linnseus, after Paulmier Fig- 77- Philoscia vittata Say, after Harger- Fig 78 Cylisticus Fig 79 Porcellio spinicornis Say, after Sars 243 Fig 80 Porcellio scaber Latreille, after Sars Fig 81 Porcellio rathkei Brandt, after Paulmier 245 246 Fig 82 Metoponorthus pruinosus (Brandt), after Paulmier ' Actoniscus ellipticus Harger, after Harger Armadillidium vulgare (Latreille), after Paulmier Fig 71 Fig 72 Fig 73 Fig 74 Fig 75- Fig 83 Fig 84 17 , convexus (DeGeer), after Paulmier 224 226 227 229 232 234 238 240 242 248 249 25 BIBLIOGRAPHY On Bate, C S the British Edriophthalma for Advance, 12-22, pi Rept British Soc Science, of 1855, 18-62, pp 1856 Catalogue of the Amphipodous Crustacea in the British Museum Westwood, and J O Bate, C S St'ssik'-c\t'(l 399, i)p A pi 58, 1862 History of the British Crustacea vols., pp 507, 536, 1868 Bovallius, C Contributions to a Monograph phipoda Hyperiidea enskaps Akademiens pi pp 434, 18 Ani- the Kongliga Svenska VetHandlingar, Ny Foljd P.d 21, no 5, pp yi, pis 7, of 10, and Bd 22, no 1887, 1889 Gammarini Fauna u Flora des Golfes von Neapel, Monogr 20, pp 948, pi 61 1893 Notes on New England Isopoda Proc U S, Nat ]Mus vol 2, pp 157-165 1880 Delia Valle, A Harger, O Report on the Marine Isopoda of New England Rept U S Com Fish, for 1878, pp 297-462, pis Holmes, S J 1880 1-13 on the Habits and Natural HisAmphithoe longimana Smith Biol ()l)servations tory of Bull., vol 2, pj) 165-193 Synopses 18 '^''^^- of The Z7^ W- American Invertebrates, Amphipoda Amer Naturalist, 267-292 The Amphipoda Bull U pis 1-13 Judd, S D S 1901 North 1903 New England Bur Fish., vol 24, pp 457-529, of Southern 1905 Descriptions of Three Species of Sand Fleas collected at Newport, R I Proc U S Nat Mus., vol 18, pp 593-603 1896 258 No ARTHROSTRACA OF CONNECTICUT 26.] 259 Det Kongelige Danske Gronlands Amphipoder Videnskabernes Selskabs naturv og math Afhandlinger, Afh 7, pp 229-326 1838 Kroyer, H Copenhagen Kunkel, B W The Amphipoda Acad Arts and Leidig, F Bermuda Trans Conn 1-116 16, pp Ueber Amphipoden und Isopoden wissen ZooL, Bd 30 9-12 pis Mayer, P of Sci., vol 1910 Zeitsch f (suppl), pp 225-274, 1878 Famia u Flora des Golfes von Neapel, Monogr 6, p 201, pis 10 1882 Nachtrag zu den Caprelliden, ibid., Monogr Caprelliden 17' PP- 155 pis 7- New York Rathbun, Mary 1890 Higher Crustacea Paulmier, F C 18-189 of State New York City Bull Museum, no 91, pp 1905- List of the Crustacea, J Fauna New of Eng- Occasional Papers, Boston Society of Natural History, vol 7, pp 34-79 land, no 1905 Richardson, Harriet Synopses of North American Inverte- brates, The Isopoda Amer vol 34, pp 207-230, 295-309 Key Naturalist, 1900 Isopods of the Atlantic Coast of Proc U S Nat Mus., vol to the North America 23 PP- 493-579- 901 Contributions to the Natural History of the Isopoda ibid., vol 27, pp 1-31 The Isopods Sars, G O of North America vol 6, pp 64-223, pis 7-18 of the Crustacea of phipoda, vol 1895 I, Isopoda, suppl Thomas U S Nat Mus., no 54, p 'J2'j 1905 Norwegian North Atlantic Expedition 1876-8, An Account Say, 1904 Bull pp 711, vol 2, pis pp 1885 Norway, Am240, suppl 8, 270, pis 100, 1899 An account of the Crustacea of the United States Jour Acad Nat Sci., Phila., vol i, PP- 374-401, 323-433 1818 CONNECTICUT GEOL AND NAT HIST SURVEY 26o [Bull Smallwood, M E The Beach Flea, Talorchestia longicornis Cold Spring Harbor Monogr I, pp 27, pis 1903- 3- The Salt-marsh Amphipod, Orchestia ibid., Ill, tris Smith, pp 21, pis paliis- 1905 Crustacea of the Fresh Waters of the United Rept U S Com Fish, for 1872-3, States S I pp 637-665 1874 Occurrence of Chelura terebrans, a Crustacean Destructive to Timber of Submarine Structures, on the Coast of the United Proc U S Nat Mus., vol 2, pp States 232-235 On 1879 Genera Cerapus, Unand Lepidactylis Trans Conn Acad Arts and Sci., vol 4, pp 268-284, pi 2^, 1880 and Verrill, A E Notice of the Invertebrata Dredged in Lake Superior in 1871 by the U S Lake Survey Amer Jour Sci., ser 3, the Amphipodous ciola, Smith, S I 1871 vol 2, pp 448-454 Smith, S I and Harger, O Report on the Dredgings in the Region of St Georges Banks in 1872 Trans Conn Acad Arts and Sci., vol 3, pp 1-57, Spencer, W pis 1-8 B 1874 The Urinary Organs Quart Jour Micro 183-191, Stebbing, T R R pi History costraca pp 466 Nat Amphipoda pp " Challenger " Reports, 1737, pis 210 of Crustacea 1888 Recent & D Appleton Co., New MalaYork, 1893 Amphipoda S the 1885 The Amphipoda vol 29, pp A 13 of Sci., ser 2, vol 25, from Costa ]\Ius., vol 26, Rica Proc U pp 925-931, pis 60, 61 1903 Das Stimpson, Wm Tierreich, Lief 21, Amphipoda, maridea, pp 806 1906 Synopsis of the Marine I Gam- Invertebrata of Grand Manan Smithson Contrib Knowledge, VI., pp 39-58 1853 No ARTHROSTRACA OF CONNECTICUT 26.] Sumner, F B., 261 C and Cole, L J A Biological Survey of the Waters of Woods ?Iole and Osburn R Vicinity, Bull Bur Fish., vol 31, pp 860, 274 charts 1913 Verrill, A E Verrill, A E., Bay by the U S Fish Commission in 1873 Proc Amer Asso Advancement Sci., 1873, PP- 340"395) P^s., 1-6 Smith, S, I and Harger, O Catalogue of the Animals of Vineyard Sound and the Adjacent Waters Rept U S Com Fish, for Explorations of Casco 1871-2, pp 295-778, pis 1-38 Weckel, Ada 1874 Freshwater Amphipoda of North America Proc U S Nat Mus., vol 32, L, The pp 25-58 1907 ... side of the proximal joints of the thalma) ; thoracic legs, and, corresponding to the position of the heart lies in The Isopoda may be is gills, the the anterior part of the body defined as Arthrostraca. .. seven of seven segments, and the of the telson, which is abdomen The thorax of six, exclusive probably not of the nature of a regular segment of the body The abdomen always is made up of three... additions to the fauna of New England are made in this report, it is hoped that the publication of the figures of native forms, together with a general account of the anatomy and biology of the Arthrostraca,
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