CRABS (BRACHYURA) OF THE GULF OF MEXICO

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112 Lawrence W. Powers they were for the Xanthidae, without regard to subfamilj^ alignment. The genus Geryon is treated under a separate family, Geryonidae.) Bathyplax A. Milne Edwards, 1880 Balhyplax lyphla A. Milne Edwards, 1880 (Bull. Mus. Comp. Zool. 8: 16) Rathbun, 1918, p. 19, (ext-fig. 4, pi. 2; Rathbun, 1933, p. 77, fig. 67; Chace, 1940, p. 43; Williams, McCloskey & Gray, 1968, p. 52, fig. 8; Pequegnat, 1970, p. 192, figs. 6-9,6-10. Range: off North Carolina; west coast of Florida; Mississippi; Texas and Mexico; west coast of Cuba; St. Croix; St. Lucia; off Recife, Brazil. Depth: 402 to 878 m (220 to 480 fm); at 1106 m (605 fm) off Cuba. Pequegnat (1970) determined the highest densities of crabs at 512 m (280 fm) in the Gulf of Mexico. Habitat; mainly from muddy substrates; also from coral bottoms. Pequegnat (1970) reported that blackened specimens were commonly collected, apparently due to contact with natural oil seepage. Remarks: Recorded from the Gulf of Chace (1956). Pequegnat (1970) considers this crab to be the most common deep-water species in the Gulf of Mexico; ovigerous females were collected in August, November, and December. Guinot (1971) listed this species under the Xanthidae and under the Goneplacidae because of the uncertainty of its systematic affinities. Chacellus Guinot, 1969 Chacellus filiformis Guinot, 1969 (Bull. Mus. Nation. Hist. Nat. 41: 722) Guinot, 1969, p. 722, figs. 135-136, pi. V, fig. 4. Range: between Bahamas and east coast of Florida; off northwest Florida. Depth: 183to223m(100tol22fm). Chasmocarcinus Rathbun, 1898 Chasmocarcinus cylindricus Rathbun, 1901 (Bull. U.S. Fish. Comm. for 1900, vol.2: 10) Rathbun, 1918, p. 59, text-figs. 28-29; Rathbun, 1933, p. 80, fig. 73; Chace, 1940, p. 49; Pequegnat, 1970, p. 195. Range: Mississippi; off Louisiana; Campeche, off Yucatan; north and south coasts of Cuba; Jamaica; Puerto Rico. Depth: 13 to 1906m (7 to 1075 fm). Habitat: mud bottoms; sand, rock, and coral substrates. Chasmocarcinus mississippiensis Rathbun, 1931 (Proc. Biol. Soc. Washington 44: 71) Rathbun, 1931b, p. 71; Felder, 1973a, p. 70, pi. 10, fig. 2. Range: off coasts of Mississippi, Louisiana, and Texas. Depth: 4 to 91 m (2to50fm). Habitat; sand and mud bottoms.
Crabs of the Gulf of Mexico 113 Remarks: Dawson (1966) reported this species from off Grand Isle, Louisiana; Franks et al. (1972) obtained a single specimen from off Mississippi at 50 fm. Felder (1973a) reported specimens from Padre Island, Texas. Chasmocarcinus ohliquus Rathbun, 1898 (Bull. Lab. Nat. Hist. State Univ. Iowa 4: 286) Rathbun, 1918, p. 58, text-fig. 27, pi. 14, figs. 1-2; Chace, 1940, p. 48. Range: southeast of Bahamas; north and south coasts of Cuba. Depth: 177 to 503 m (97 to 275 fm). Habitat: mud and ooze substrates. Eucratopsis Smith, 1869 Eucratopsis crassimanus (Dana, 1852) (Proc. Acad. Nat. Sci. Philadelphia, for 1851, vol. 5:248) Rathbun, 1918, p. 52, text-fig. 22, pi. 12, fig. 3, pi. 159, figs. 1-2; Guinot, 1969a, p. 258, figs. 6, 10, 25. Range: Florida Keys; south and west coasts of Florida; Yucatan; Jamaica; Bahia to Rio de Janeiro, Brazil. Depth: shallow water to 14 m (to 7.5 fm). Habitat: sand, coral, and broken shell substrates. Remarks: Tabb and Manning (1961) collected ovigerous females in October from Oyster Bay in south Florida. Euphrosynoplax Guinot, 1969 Euphrosynoplax clausa Guinot, 1969 (Bull. Mus. Nation. Hist. Nat. 41: 720) Guinot, 1969a, p. 720, figs. 127, 139, pi. IV, fig. 3; Pequegnat, 1970, p. 194. Range: Dry Tortugas; off Alabama and Mississippi; Campeche, Yucatan. Depth: 91 to210m (50to 115fm). Euryplax Stimpson, 1859 Euryplax nitida Stimpson, 1859 (Ann. Lye. Nat. Hist. New York 7: 60) Ratlibun, 1918, p. 34, pi. 7; Rathbun, 1933, p. 78, fig. 69; Williams, 1965, p. 202, fig. 185; Guinot, 1969a, p. 512, figs. 39, 41, 47, 56-57, pi. II, fig. 1; Felder, 1973a, p. 70, pi. 10, fig. 1. Range: off North Carolina; Bermuda; Florida Keys; south and west coasts of Florida to Texas; Puerto Rico; St. Thomas, Virgin Islands. Depth: shallow water to 90 m (to49fm). Habitat: sand, shell, rock, and coral substrates; sandy grass flats. Remarks: Menzel (1971) listed this crab as rare at Apalachee Bay and Abele (1970) collected only a single specimen in his study of the northeastern nearshore Gulf. Range reports for the western Gulf of Mexico are scant and questionable. Rathbun (1918) listed one specimen from New Orleans and Williams (1965) indicated a range extending to Texas. Felder (1973a) cites these reports but adds no new records.
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a catalogue & bibliography to the C
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Editor: DONALD E. WOHLSCHLAG Editor
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TABLE OF CONTENTS Page Acknowledgme
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INTRODUCTION The purpose of this ca
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I Crabs SECTION DROMIACEA de Haan,
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Family TABLE II Endemic and Total S
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Family Dromiidae Prosopidae Homolid
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Crabs of the Gulf of Mexico 15 FIG.
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FIG. 4. Surface currents of the Gul
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Crabs of the Gulf of Mexico 19 tive
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Crabs of the Gulf of Mexico 21 Rema
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Crabs of the Gulf of Mexico 23 Dept
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Crabs of the Gulf of Mexico 25 foss
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CycZorforippe orn«fa Chace, 1940 (
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Crabs of the Gulf of Mexico 29 Ethu
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Crabs of the Gulf of Mexico 33 exam
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Crabs of the Gulf of Mexico 35 Will
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Callidactylus Stimpson, 1871 Crabs
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Persephona I^each, 1817 Persephona
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Crabs of the Gulf of Mexico 41 and
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Aepinus Rathbun, 1897 Crabsof the G
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Crabs of the Gulf of Mexico 45 Dept
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Slenor/iync/iMs Lamarck, 1818 Crabs
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Crabs of the Gulf of Mexico 51 Rang
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Crabs of the Gulf of Mexico 53 atta
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Crabs of the Gulf of Mexico 55 Milh
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Crabs of the Gulf of Mexico 5 7 Ban
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Crabs of the Gulf of Mexico 59 base
Page 61 and 62: Pif/io Bell, 1835 Crabs of the Gulf
Page 63 and 64: Holoplites Rathbun, 1894 Crabs of t
Page 65 and 66: Crabs of the Gulf of Mexico 65 lett
Page 67 and 68: Crabs of the Gulf of Mexico 67 Roch
Page 69 and 70: Crabs of the Gulf of Mexico 69 Rang
Page 71 and 72: Tutankhamen Rathbun, 1925 Crabs of
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Page 75 and 76: Crabs of ihe Gulf of Mexico 75 pis.
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Page 81 and 82: Crabs of the Gulf of Mexico 81 Love
Page 83 and 84: Crabsof the Gulf of Mexico 83 Habit
Page 85 and 86: Crabs of the Gulf of Mexico 85 Habi
Page 87 and 88: The Freshwater Crabs Crabs of the G
Page 89 and 90: Carpoporus Stimpson, 1871 Crabsof t
Page 91 and 92: Crabs of the Gulf of Mexico 91 it b
Page 97 and 98: Crabs of the Gulf of Mexico 97 of b
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Page 105 and 106: Piluninus L,each, 1815 Crabs of the
Page 107 and 108: Crabs of the Gulf of Mexico 107 Dep
Page 109 and 110: Crabs of the Gulf of Mexico 109 Mis
Page 111: Crabs of the Gulf of Mexico 111 bet
Page 115 and 116: McCloskey & Gray, 1968, p. 52, fig.
Page 117 and 118: Range: north coast of Cuba; Puerto
Page 119 and 120: Depth: 112 to 545 m (61 to 298 fm).
Page 121 and 122: Crabs of t he Giilf of Mexico 121 f
Page 123 and 124: Crabs of the Gulf of Mexico 123 Ila
Page 125 and 126: Crabs of the Gulf of Mexico 125 Pec
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Page 137 and 138: Crabs of the Gulf of Mexico 137 74;
Page 139 and 140: Crabs of the Gulf of Mexico 139 197
Page 141 and 142: Ocypoda arenaria Sa}^ 1817. Crabs o
Page 143 and 144: Crabs of the Gulf of Mexico 143 Vca
Page 145 and 146: Crabs of the Gulf of Mexico 145 Ran
Page 147 and 148: Ilea pugnax (Smith, 1870). Crabs of
Page 149 and 150: Crabs of the Gulf of Mexico 149 Jam
Page 151 and 152: Crabs of the Gulf of Mexico 151 ADK
Page 153 and 154: Crabs of the Gulf of Mexico 153 and
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Page 159 and 160: Crabs of the Gulf of Mexico 159 ENG
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^ Crabs of the Gulf of Mexico 163 .
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Crabs of the Gulf of Mexico 165 HEN
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Crabs of the Gulf of Mexico 167 . 1
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Crabs of the Gulf of Mexico 171 MEN
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Crabs of the Gulf of Mexico 173 ONG
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1-127. Crabs of the Gulf of Mexico
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Crabs of the Gulf of Mexico \77 •
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Crabs of the Gulf of Mexico 179 SKO
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Crabs of the Gulf of Mexico 181 TRU
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186 Lawrence W. Powers C. cubensis
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188 Lawrence W. Powers M. crebripun
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190 Lawrence W. Powers T. granulosu
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CRABS (BRACHYURA) OF THE GULF OF MEXICO

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