378 



A. E. Verrill — Decapod Crustacea of Bermuda. 



N. lat. 41° 3(/, in iSarf/assuni, 1872. Southward, it is abundant along 

 the Gulf Stream to Florida, Cuba, and the Gulf of Mexico. Few 

 of the Bermuda specimens carried eggs; most are quite young. 



Achelous anceps (Sans.) Stimpson. 



Lupea anceps Saussiire, Crust. Antilles, Mex., Mem. Soc. Pbys. Hist. Nat.. 



Geneve, xiv, p. 434 [18], pi. ii. fig. 11-116, 1858 (Cuba). 

 Neptunus anceps A. M.-Edw., Arch. Mus. Nat. Hist., x, p. 328, 1861 ; Miss. 



Sci. Mex., V, p. 218, 1879. Rankin, Ann. N. York Acad. Sci., xii, p. 530, 



1900. S. I. Smith, Annual Eep. U. S. Fish Comm. for 1895, p. [30], 1886 



(Cape Hatteras). 

 Lupa Duchassagni Desb. and Schramm, Crust. Guadeloupe, p. 39, pi. iv, 



fig. 25 {t. Stimpson). 

 Portunus (Achelous) anceps (jiars) M. J. Eathbuii,* Amer. Naturalist, vol. 



xxxiv, p, 140. 

 Neptunus centralis A. M.-Edw., Exp. Sci. Mex., v, ^dI. xi, fig. 3, 1879. 



Rathbun, Brach. and Macr. Porto Rico, p. 45. 

 Achelous anceps Stimpson, Ann. Lye. Nat. Hist. N. York, p. 113, 1871. 



FiGUEE 26. Plate XX, Figures 1, 2. Plate XXVII, Figure 4. 

 This species is easily recognizable by the long, sharp, po.sterior 

 lateral spines; the four very short, obtuse, unequal frontal teeth; and 



Figure 26. — Achelous anceps, female, enlarged IJo times ; a, chela. 

 Saussure. 



After 



the two distal spines, one behind the other, on the chelfe, besides 

 other obvious characters. The two raiddle frontal teeth are much 

 smaller than the others. The lateral teeth are acute and curve 



* Miss Rathbun (loc. cit.), in her analytical table, placed anceps in a group with 

 short posterior lateral spines. She informs me that she then had another species 

 in mind. 



