240 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



external maxillipeds with anterior border very oblique. Chelipeds 

 massive, smooth, unequal in both sexes; fingers bluntly pointed, 

 those of larger cheliped with one or two molariform teeth, those of 

 smaller cheliped with a blunt cutting edge. Legs smooth. Abdomen 

 of male six-segmented, third and fourth somites fused with obliter- 

 ation of sutures, fifth somite also immovably adherent to fourth. 



Contains three large species, one inhabiting the Atlantic coast of 

 middle America, the others widely distributed through the Indo- 

 Pacific region. 



CARPIUUS CORALLINUS (Herbst) 



CORAL CRAB; QUEEN CRAB 

 Plates 97-99 



Cancer corallinus Herbst, Natur. Krabben ii. Krebse, vol. 1, 1783, p. 133, pi- 



5, fig. 40; not sj^nonymy except Plumier (type-locality, not given; type not 



found in Berlin Museum, 1896). 

 Carpilius corallinvs Leach in Desmarest, Consid. sur les Crust., 1825, p. 104; 



not Gundlach, An. Acad. Cien. Habana, vol. 36, 1899, p. 367, text-fig., 



which is a Menippe. 



Description. — Front almost vertically deflexed, median lobe entire 

 in large specimens, bilobate in small ones, and separated on either 

 side from the forward pointing lateral lobes by a deep U-shaped sinus 

 no larger than the lateral lobe. Movable finger of larger cheliped 

 with two prehensile teeth; immovable finger with a single larger tooth. 

 Legs compressed. 



Color. — Ground pale red with scarlet spots among which are 

 meandering designs in white and yellowish (Herbst). Carapace 

 brick-red, somewhat wine-colored or coral-red, covered with yellow 

 spots; legs veined with brown; claws spotted; fingers and nails 

 brown (A. Milne Edwards). 



Measurements. — Male (Bahamas), length of carapace 108.2, width 

 143.8, fronto-orbital width 53, width of front 37.2 mm. Male (von 

 Martens), length 128, width 154 mm. This species is the largest 

 of the West Indian crabs, and is often used for food. 



Range. — Bahamas to State of Pernambuco, Brazil. 



Material examined.— Spanish Wells, Bahamas; 1893; Biological 

 Expedition, State University of Iowa; 1 large male (S.U.I. ). 



Santa Lucia, Cuba; May, 1914; Paul Bartsch and John B. Hender- 

 son, Tomas Barrera Expedition; 1 specimen (47918). 



Jamaica: J. E. Duerden; specimen in Mus. Inst. Jamaica. C. R. 

 Orcutt; 1928: Harboreale, 1 carapace (61341); without locality, 



1 carapace (61343). 



Porto Rico: George Latimer; 1 female (3575). Collector unknown; 



2 specimens (2154). 



St. Thomas, Virgin Islands; 1915; Clarence R. Shoemaker; received 

 from Carnegie Institution: July 1; St. Thomas Harbor; 1 male 

 (54046). July 19; Buck Island, off St. Thomas; 2 females (54045). 



