76 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Color. — Pale reddish or brownish, mottled; gastric region usually 

 deep crimson. (Stimpson.) Backs mottled with coral red, madder 

 brown and rufous; legs banded, paddles transparent olive yellow; 

 bands on fingers almost maroon; (61177). Another Tortugas specimen 

 (61181) was darker, of a brownish-reddish color; carapace and cheli- 

 peds a grayish chestnut, with French gray caste in spots and ecru 

 drab tinges and spots; ambulatory legs more tawny, articles of pad- 

 dles transparent faint ocher yellow with ochraceous margins; fingers 

 distally tawny with a white band, then a band of burnt carmine, 

 largely crimson; median fifth white, basal two-fifths burnt carmine 

 and crimson; spines of cheliped mostly white with a faint ring of 

 burnt carmine near base and another near tip. (Schmitt.) 



Measurements. — Female (7837), total length of carapace 33.3, width 

 of same 47, width at anterior base of lateral spine 41.6, fronto-orbital 



width 26.5, width of 

 front 8.6 mm. 



Range. — Vineyard 

 Sound, Massachusetts 

 (Sumner) ; North Caro- 

 lina to the Abrolhos Is- 

 lands, Brazil; Bermuda. 

 Material examined. — 

 See table, pp. 72-75. 



PORTUNUS (ACHELOUS) 

 MIMMUS Rathbun 



Plate 36 

 Portunus (Achelous) mini- 

 mus Rathbun, Proc. 

 U. S. Nat. Mus., vol. 



o T. ,. ^ 21,1898, p. 595, pl. 44, 



Figure 13.— Portunus (Achelous) minimus, male, holotype, « o /+ i t+ 



CARAPACE 17 MM. WIDE, DORSAL VIEW ^S- " (type-lOCallty, 



Gulf of California, 10 

 fathoms, station 2827, Albatross; Cat. No. 21588, U.S.N.M.); Proc. Cali- 

 fornia Acad. Sci., ser. 4, vol. 13, 1924, p. 374. 

 Portunus (Portunus) xantusii Rathbun, Bull. Amer. Mus. Nat. Hist., vol. 48, 

 1923, p. 620 (part). 



Diagnosis. — Second, fourth, and sixth lateral teeth reduced; 

 lateral spine twice as long as eighth tooth; four or five spines on 

 anterior margin of arm; postero-distal margin of merus of swimming 

 feet armed with spinules. 



Description. — Surface of carapace resembling that of P. (P.) 

 xantusii, but the carapace narrower; frontal teeth broader, triangular, 

 extremities arcuate, sides more or less convex; median sinus V-shaped; 

 antero-lateral teeth closely placed, sinuses nari'ow; second, fourth, 

 and sixth teeth reduced in size, most markedly so in the half grown; 

 lateral tooth twice as long as eighth tooth or as long as the width of 



