WILLIAMS: CRABS OF THE GENUS CALLINECTES 



cially in association with mangroves and around 

 river mouths from water's edge to recorded depths 

 of about 7.5 m (Rankin, 1900; Coelho, 1967b, 1970; 

 Chace and Hobbs, 1969; Taissoun, 1969). 



Spawning. — Few dated collections contain 

 ovigerous females: March, Puerto Rico and 

 Guadeloupe; April, Barbuda and Panama; May, 

 Jamaica; June, West Indies; August, Estado de 

 Santa Catarina, Brazil. Other undated collections 

 in museums are from Bermuda, southern Florida, 

 Estados de Pernambuco and Sao Paulo, Brazil. 



Remarks . — Callinectes exasperatus has a 

 number of distinctive features. It has the roughest 

 appearing carapace and chelipeds of any species in 

 the genus because the granulations are coarser 

 and sharper than in others. The median episto- 

 mial tooth is more widely separated from the front 

 than among the congeners, perhaps a function of 

 the vaulted carapace which contributes to deep- 

 bodied form. Similar to C. bocourti in structure of 

 frontal teeth, C exasperatus has less prominent 

 cardiac lobes and sulci bounding the metagastric 

 area. The lateral spines are relatively shorter 

 than among other species of the genus. A blunt 

 anteromesial eminence on the carpus is pro- 

 nounced. Narrowest width of the male abdomen is 

 in the distal third of the sixth segment, the nar- 

 rowed portion becoming increasingly distal with 

 age together with progressive crossing of the 

 pleopods. 



Dahl (1954) worked at Canango Beach, Ven- 

 ezuela, at or near the type-locality for C. exas- 

 peratus and published a photograph of the beach 

 at Puerto Caballo together with a short descrip- 

 tion of the area, saying that the tidal difference is 

 small and wave exposure very great on the rather 

 steeply sloping beach. 



Locality data for specimen 303-7 in MNHNP 

 (M. Fontaines) from "Chili" identified as Nep- 

 tunus diacanthus Latr. (= C. exasperatus) is an 

 error. 



Material. — Total: 97 lots, 372 specimens. 

 Specimens listed in Rathbun (1930) from 

 USNM (24463, 24464, 18631 not found) and MCZ. 



USNM. 38 lots, 282 specimens, including the 

 following not cited above: 



UNITED STATES 



Florida: 77125, E of Bush Key, Tortugas, 29 



July 1931, 1 <?, Pearse. 80665, Key West, no date, 1 

 6, U.S. Bur. Fish. 



CUBA 



77127, Bahia Honda [Pinar del Rio, WSW 

 Habana], 1 June 1893, Univ. Iowa. 



JAMAICA 



123077, Kingston Harbor, 17 May 1965, 1 9 (ov), 

 B. B. Collette. 



HAITI 



71232, Muertos I., Seven Brothers group, Feb. 

 1929, 1 6, Poole and Perrygo. 



PUERTO RICO 



61563, Cataho [San Juan Harbor], 4 Jan. 1899, 



1 (J, Fish Hawk. 73281, Bahia de San Juan, 29 

 Mar. 1937, 1 6, W. L. Schmitt. 123084, Boca de 

 Cangrejos, 7 mi E San Juan, 31 Mar. 1937, 1 c?, 



2 9(1 ov), W. L. Schmitt. 



VIRGIN ISLANDS 



71639, St. Croix, no date, 1 6, H. A. Beatty. 

 72353, St. Croix, 1935-36, 2 6, H. A. Beatty. 76466, 

 St. Croix, no date, 1 9, H. A. Beatty. 



BARBUDA 



123079, west shore of lagoon near Oyster Pond 

 Landing, 6 Apr. 1956, 1 9 (ov), Schmitt, Chace, 

 Nicholson, and Jackson, Stn. 85-56, Freelance. 



GUADELOUPE 



123080, between Monroux and Rat Is., Pointe a 

 Pitre, 30-31 Mar. 1956, 3 o, 2 9 (1 ov), Chace and 

 Nicholson, Stn. 68-56, Free/ance. 



GRENADINES 



123078, Tyrrell Bay, Carriacou I., 16 Mar. 1956, 

 2 <?, D. V. Nicholson, Stn. 11 -56, Freelance. 



MEXICO 



Quintana Roo: 78391, Bahia de la Ascension, 28 

 Mar. 1939, 1 6 , Ralph EUiott. 123082, N end Bahia 

 de la Ascension, 15 Apr. 1960, 3 S , 19, Daiber 

 and Schmitt. 123083, Bahia de la Ascension 

 behind Pta. Allen, 16 Apr. 1960, 1 S , Daiber and 

 Haynes. 123081, Bahia del Espiritu Santo, near 

 Pta. Lawrence, 6 Apr. 1960, 1 9 , Rehder, Daiber 

 and Haynes. 



VENEZUELA 



95713, Gran Roque, Los Roques Is., 7 Sept. 1950, 

 1 S, F. H. Weibezahn. 



759 



