THE SPIDER CRABS OF AMERICA 57 



long as the carapace. Propodus slightly thickened distally, about 

 one and two-thirds times the length of the dactyliis in the first pair 

 and one and a half times in the remaining pairs. 



The sternum has very slight depressions between the segments, 

 and two stout cylindrical spines tipped with a granule at the base of 

 the chelipeds. A tubercle on first abdominal segment. 



Measurements. — Male, holotype, length of carapace with rostrum 

 26, length of rostrum from 

 anterior margin of orbit 12.3, 

 width of carapace 12.3 mm. 



Range. — Gulf of California, 

 Mexico. To a depth of 11 

 fathoms. 



Material exajnined ^^'^' i^.— podochela latimanus, male holotype/ 



_„ A 1 • -n -Kf • ■ LEFT CHELA, X 5.3 



Oft Adair i3ay, Mexico, m 

 Gulf of California; lat. 31° 21' 00" N.; long. 113° 49' 00" W.; 11 

 fathoms; S. brk. Sh. G.; temp. 67° F.; Mar. 25, 1889; station 3024 

 Albatross; 1 male, holotype (17324). 



Patos Island, Gulf of California; anchorage; 4J^ fathoms; April 

 23, 1921; Fred Baker, California Academy Expedition; 2 males, 2 

 females (1 ovigerous) (Cal. Acad. Sci.). 



Concepcion Bay, Lower California (gulf coast); March 19, 1889; 

 Albatross; 1 male (17325). 



PODOCHELA LOBIFRONS Rathbun 



Plate 11, figs. 3 and 4 



Podochela {Coryrhynchus) lobifrons Rathbun, Proc. U. S. Nat. Mus., vol. 16, 

 1893, p. 226 (type-locality, off Abreojos Point, Lower California, 58 

 fathoms; holotype. Cat. No. 17331, U. S. N. M.). 



Diagnosis. — Postorbital and hepatic lobes large. Carpus of cheli- 

 peds rough with spinules single or clustered. Dactylus of first 

 ambulatory leg very long, half as long as propodus. 



Description. — Carapace covered with a short, dense pubescence; 

 margins of lobes, of basal antennal article, of all ventral ridges, rough 

 with sharp granules; chelipeds rougher than in other species, armed 

 not only on the margins but elsewhere with spinules, largest on the 

 upper and lower edges of the palm. The type and only specimen 

 known is of large size and in a very soft-shelled condition. The front 

 is very short and bilobed; in spite of the symmetry of the lobes, it is 

 probable that the rostrum has been accidentally abbreviated, as the 

 basal antennal article extends far beyond it and the antennular cavi- 

 ties are anteriorly incomplete. A deep sulcus surrounds the cardiac 

 region except in front. Postorbital lobe large. The long thin 



