A. E. Verrill Decapod Crustacea of Bermuda. :>!iL 



Beaufort, N. C., and West Florida (Kingsley). Egmont Key, 

 Fla., "No. 081, and Fort INI aeon (Vale Mus.). 



Achelous depressifrons Stimp. 



Ainiiliih-iti- <lcpi-es*ifro)is Stimpson, Notes, No. I, Annals Lye. Nat. Hist. N 



York, vii, p. 58 [12], 1859. 

 ' AclH'Ioitx depi-essifrons Stimp., op. cit., p. 223 [95], 1860. A. Milne-Edw., Arch. 



Mus. Nat. Hist., x, p. 342, 1861 ; Miss. Sci. Mex., v, p. 230, pi. xl, fig. 4, 4a, 



1871). Cones, Proc. Acad. Nat. Sci. Philad., for 1872, p. 121 (Fort Macon). 



Kingsley, Proc. Acad. Nat. Sci., Philad., for 1878, p. 5. Rankin, N. York 



Acad. Sci., p. 233, 1898. 

 Neptinnis <li'j-es$ifrons Miers, op. cit., p, 181, 1886. Rankin, Annals N. Y. 



Acad. Sci., xii, p. 531, 1900 (Bermuda). 

 Portunns (Achelous) depressifrons M. J. Rathbun, Bull. Lab. Nat. Hist. Univ. 



Iowa, 1878. p. 27 ; Brach. and Macr. Porto Rico, p. 45, 1901. 



FIGURE 36. PLATE XX, FIGURE 3. 



This is easily distinguished from most of the other Bermuda 

 species by the shorter posterior lateral spine, which is scarcely 

 longer than those in front of it. The front is not at all prominent; 





V. 



,f.- 



f 



v */-! 



Figure 36. Ach<'l<>nx <lfj>i'c.ssifrons, resting on shell-sand, to show protective 

 coloration. Nat. size. Phot. A. H. V. 



its four rostral or true frontal teeth are very short, blunt, subequal, 

 and close together ; most frequently the middle two are a little 

 smaller than the others; in other cases they equal or a little exceed 

 them in length. 



The inner orbital tooth is broad, with the frontal angle dentiform 

 and the middle of the margin a little concave, but not bilobed. 



