112 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



female, soft shell (Field Mus.). Mindi Cut, Mindi: January 28, 1 

 young (43918), 2 young (Field Mus.); February 3 and 4, 1 male 

 (43921), Creek near Gatun, January 19, 1 male, 2 females (43919), 

 1 male, 2 females (Field Mus.). 



BRAZIL. — Santa Cruz, State of Bahia; Thayer Expedition; 1 male 

 holotype (M.C.Z.). Sao Joao da Barra, State of Rio de Janeiro; 

 November 11; E. Garbe collector; 1 immature female (returned to H. 

 von Ihering). Rio de Janeiro; Thayer Expedition; 1 male paratype 

 (19083), 1 male paratype (M.C.Z.). 



CALLINECTES BELLICOSUS Stimpson 



Plate 49 



LuTpa bellicosa (Sloat, MS.) Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, 

 1859, p. 57 [11] (type-locality, Guaymas; type not extant). 



Callinectes bellicosus Ordway, Journ. Boston Soc. Nat. Hist., vol. 7, 1863, p. 

 577. — A. Milne Edwards, Crust. Reg. Mex., 1879, p. 227 (var. of C. diacan- 

 i/iws).— RATHBUN,Proc. U. S. Nat. Mus., vol. 18, 1895 (1896), p. 365, pi. 

 22; pi. 24, fig. 10; pi. 25, fig. 8; pi. 26, fig. 8.— Holmes, Occas. Papers Cali- 

 fornia Acad. Sci., vol. 7, 1900, p. 73. 



Lwpa hellicosa? Lockington, Proc. California Acad. Sci., vol. 7, 1876 (1877), 

 p. 105 [11]. 



Diagnosis. — Middle pair of frontal teeth rudimentary. Inner or- 

 bital fissure open. Outer-upper carina of palm rough with short 

 sharp tubercles. Lateral spine of carapace short. 



Description. — Carapace rather evenly convex, furrow at inner angle 

 of branchial region deeply impressed, gastro-cardiac furrow shallow, 

 cardiac region not medially divided. Granules fine, closely set except 

 on the antero-lateral region where they are scanty and in the old absent. 

 Transverse carinae low, the gastric ones much curved; all become 

 indistinct with age especially on the inner half of the branchial region. 

 Median length of intramedial region less than half its anterior width 

 and only % or % of its posterior width. Front with two slender sharp 

 spiniform outer teeth and between them a pair of very faintly marked 

 broad, shallow teeth. Submedian tooth sharp, longer than the lat- 

 eral frontal pair. Inner supraorbital tooth acute; inner fissure open, 

 often throughout its length; orbital border outside the fissure ad- 

 vanced beyond that portion inside the fissure. Suborbital tooth 

 slender, sharp and well advanced. Antero-lateral teeth shallow, 

 margins more or less concave and tipped with sharp white spines. 

 Lateral spine very short ; about twice the length of the preceding tooth 

 in adults, longer in the 5^oung. Merus of chelipeds armed with four 

 spines on inner margin; a fifth spine less sharp but grading in size 

 and position with these, is situated on the condyle of the ischium. 

 Ridge on outer upper margin of manus very prominent, marked with 

 large tubercles which are sharp or spiniform; other carinae less 

 strongly marked, often almost smooth. Terminal segment of male 

 abdomen half again as long as wide; appendages of first segment 



