DECAPOD CRUSTACEANS OF THE WEST INDIES 133 



41. Callinectes sapidus Rathbun 



Figures 36, 37/ 



Portunus diacantha Latreille, 1825b [part], p. 190 [type-localities: North America, 

 Antilles, Brazil, etc. (restricted to Philadelphia, Penn., by Holthuis, 1962, 

 p. 232) ; name suppressed for purposes of Law of Priority by International 

 Commission on Zoological Nomenclature, OiDinion 712 (1964, p. 336)]. 



?Lupea dicantha. — H. Milne Edwards, 1834, [part] p. 451. 



Ltipa dicantha. — Gould, 1841, p. 324. 



Callinectes sapidus Rathbun, 1896a, p. 352, pi. 12; pi. 24: fig. 1; pi. 25: fig. 1; 

 pi. 26: fig. 1; pi. 27: fig. 1 [type-locality restricted to "east coast of United 

 States" by WilUams, 1965].— Williams, 1965, p. 168, fig. 151. 



Callinectes sapidus acutidens Rathbun, 1896a, p. 354, pi. 13; pi. 24: fig. 2 [type- 

 locality: Santa Cruz, Estado da Bahia, Brazil]; 1930, p. Ill, text-fig. 15c, 

 pi. 48. 



Diagnosis. — Carapace with central trapezoidal (metagastric) area 

 nearly half as long as anterior width; anterolateral margins not 

 strongly arched; anterolateral teeth directed outward, not curving 

 noticeably forward; lateral spine two to four times as long as posterior 

 margin of preceding tooth. Suhmedian pair of frontal teeth rudimentary 

 or absent. First pleopods of adult male diverging, then recurving 

 mesially in distal half, reaching beyond suture between sternites sup- 

 porting first and second pereiopods; distal portion armed laterally 

 with row of large and small, blunt-tipped spinules; extreme tip con- 

 tinuing axis of shaft, not directed laterad. A very large species, maxi- 

 mum carapace length in midhne about 94 mm. 



Color in difb. — Carapace mostly olive green with frontal, orbital, 

 and anterior gastric regions with darls brown suffusion; tubercles over 

 gastric, epibranchial, hepatic, and anterolateral portions of meso- 

 branchial regions tipped with cream; anterolateral teeth with sub- 

 terminal orange bands fading to cream tips. Posterolateral portion of 

 mesobranchial area with pale tan spot, 



Antennules mottled brown on cream; antennae pale straw. Third 

 maxiUipeds cream and somewhat tan distally, Chelipeds with upper 

 surface of merus dark olive brown anteriorly, fading to cream tan 

 proximally and posteriorly; spines cream basally with vermUion tips 

 (basal one entirely cream colored), and cream spot at upper distal 

 articular linob; carpus dark olive brown above with proximal articular 

 membrane gray; palm with two dark olive-brown stripes along upper 

 border, one nearest flexor margin fading ventrally to oUve tan and 

 then blue with faint olive suffusion, extensor surface greenish blue, 

 immovable finger blue fading to tan distally with cream tip and 

 lavender teeth subtended by bright blue stripe; inner articular knob 

 of propodus at base of dactyl white; dactyl with dark olive triangular 

 area proximally, mostly greenish above and blue toward lavender 

 teeth, tip white with dark brown band immediately proximal to it. 



