410 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Measurements. — Male (16078), length of carapace 13.4, width of 

 same 20.4, fronto-orbital width 11, width of front 6 mm. 



Habitat. — "On beach at low water under stones. In order to 

 avoid capture when disturbed they splash around and attempt to 

 bury themselves in the sand before the water clears." (Jouy.) 



Range. — West coast of Mexico, in Gulf of California. 



Material examined. — 



Guaymas, inner harbor; February 23, 1891; P. L. Jouy; 6 males, 

 5 females (16078). 



Concepcion Bay, Lower California; March 19, 1889; Albatross; 

 5 males, 3 females (15786). 



EURYPANOPEUS DEPRESSUS (Smith) 



Plate 173, Figures 3 and 4 



Panopeus depressus Smith, Proc. Boston Soc. Nat. Hist., vol. 12, 1869, p. 283 

 (type-localities, New Haven, Connecticut, and Egmont Key, Florida; 

 types in Peabody Museum, Yale University) ; Rept. U. S. Commr. of Fish 

 and Fisheries, pt. 1, for 1871-72 (1873), p. 547 [253], pi. 1, fig. 3.— Benedict 

 and Rathbun, Proc. U. S. Nat. Mus., vol. 14, 1891, p. 366, pi. 20, fig. 5; 

 pi. 23, figs. 4 and 5. 



Eurypanopeus depressus A. Milne Edwards, Crust. Reg. Mex., 1880, p. 320, 

 pi. 59, fig. 2. 



Diagnosis. — Antero-lateral margin deeply cut, forming three (third 

 to fifth) sharp teeth. Carpus of cheliped with a conical spine-tipped 



tooth at inner angle. Color of im- 

 movable finger prolonged on palm. 

 Fingers of minor chela spooned. 



Description. — Carapace gently con- 

 vex, roughened with very fine granules 

 and innumerable short, unequal, 

 ^f^^ transverse lines of coarser granules; 



Figure 65.— Eurypanopeus depressus, hepatic and posterior cardiac grOOVCS 



MALE, ENLARGED, a. ABDOMEN. 6. MINOR ghallow, othcrwisc thc rcgious are 



chela. After Benedict and Rathbun , . , . 



plamly marked; mesogastric region 

 narrowing gradually forward until near the tip where it suddenly 

 contracts to a deeply impressed line; epigastric lobes low; surface 

 short pubescent. Front slightly arcuate, with a minute median nick, 

 not followed by a closed fissure. Inner border of orbit broad and 

 high, ending in a blunt, acute angle; upper border with two small 

 V-shaped nicks prolonged in a closed fissure, the inner one twice as 

 long as the other; outer angle of orbit small, triangular; beneath it a 

 large V emargination from which the border extends in a concave 

 line to the broad, triangular tooth at the lower inner angle. Second 

 tooth of lateral margin of carapace broad, lobiform, united with the 

 first tooth by a shallow concavity; remaining teeth acute, more or 

 less spiniform, curved, so that the outer line follows the general 

 contour of the body; third tooth points obliquely inward, fourth 

 forward, fifth obliquel}^ outward and forward. 



