380 THE GENUS PANOPEUS — BENEDICT AND RATHBUN. 



Carapace convex, areolated. Front produced, narrower than in 

 herbstii. Antero-lateral teeth triangular, the last three pairs with points 

 directed forward. 



This species and P. vaUdits Smith are very closely rdated, but our 

 specimens of the latter difi'er from the figure of chilensis given by Ed- 

 wards and Lucas, in the deep but closed median cleft of the front, 

 in the broader bases of the antero-lateral teeth, in the deeper sulcus of 

 the coalesced tooth, and the stouter ambulatory feet. The front of 

 chilensis is nearly straight, while in I'falidus the lateral lobes are pro- 

 duced and prominent. The fincfers also of chilensis are not channeled. 



Length, 26 millimetres ; width, 38 millimetres. 



Chili ; Panama ; west coast of Mexico. 



2. Panopeus subverrucosus (White). 



Ozius f siibvernicosus. Adam White, Crust, in Brit. Mus., p. 19, 1847; Proc. Zool. 



Soc. Loudoo, XV, p. 226, 1847. 

 Panoi)eiis subverrucosus. E. J. Miers, Challenger Rept., Zool., xvii, p. 129, 1886. 



Carapace with latero-anterior side short, with three deep incisions 

 forming four lobes, the two middle truncated ; carapace above irregu- 

 lar, the edges and under-side thickly covered with small warts. Front 

 formed of two truncated widish lobes, separated by a very slight notch ; 

 a deepish notch between the front and the orbit, and a sinus between 

 the outer orbital angle and the first lobe of the side. Hab. — ? 



This species is represented in the British Museum by a carapace only. 



3. Panopeus laevis Daua. 



Panopeus Icevia. J. D. Daua, Crnst. U. S. Ex. Ex., i, p. 180, 1852. 



"^ Panoi)eu8 Icevis." E. J. Miers, Challeuger Rept., Zool., xvii., p. 129, 1886. 



Carapace smooth, scarcely shining, not distinctly areolate, front nearly 

 straight, not produced, minutely emarginate, antero-lateral margin thin, 

 four-lobed, second and third lobes neatly dentiform and acute, the pos- 

 terior margin of these teeth arcuate, fourth narrower. Anterior feet 

 very unequal, unarmed, rounded above, liand smootli, a little shining 

 on outside, movable finger smooth, without a large basal tooth. Eight 

 posterior feet slender, margins pubescent, third joint nearly naked. 



Locality doubtful. 



The figure as given by Dana represents a species very distinct from 

 any that we have examined. 



4. Panopeus americanus Saussure. 



Panopeus americanus. H. de Saussure, Rev, et Mag. de Zool., (2), 9, p. 502, 18.57 ; 

 Mt'Mi. Soc. Phys. Geueve, xiv, p. 432, pi. 1, tig. 8, 1857. W. S[timpsou'], Amer. 

 Jour. Sci. (2), 27, p. 44G, 1859. E. v. Martens, Arch, fiir Natur., 38, p. 90, 1?72. 

 A. Milne Edwards, Miss. Sci. au Mesique, pt. 5, i, p. 311, 1880. 



Small; carapace fiat, more quadrate t\l'^i\l serratus ; margins lobate. 

 Saussure, in his description and figure, represents this species with 



