THE SPIDER CRABS OF AMERICA 



109 



and usually well-separated horns. The basal article of the antenna 

 is so twisted that the terminal spinule of the four or five on the outer 

 margin is in the same horizontal plane as the rostrum; the laminate 

 crest near the inner margin ends in a large tooth. A short inter- 

 antennular spine present. A granule on upper orbital border. 

 Postorbital tooth slender. Sternum of male very finely granulate; 



"sVi 



Fig. 32.— COLLODES TRISPIN0SU3, MALE (9783). 0. ROSTRUM, X 16. 6. LEFT CHEL.\, X 6.66 



terminal or seventh article of abdomen elongate-triangular. Abdo- 

 men of female furnished with coarse but depressed granules. 



Chelipeds of male moderately stout; palm thick, smooth outside; 

 margins of merus and palm and surface of carpus spinulous; fingers 

 widely gaping, a triangular tooth near middle of fixed finger, a very 

 shallow, molariform tooth near base of dactylus. Ambulatory legs 

 long; dactyli about as long as the preceding article. 



Measurements. — Male (9783), length of carapace 14, width 11.5, 

 length of first leg 28.7 mm. Female (9783), length of carapace 12, 

 width 9.7 mm. 



Range. — North and South Carolina; Florida, gulf coast, and keys 

 from Tortugas to Carysfort. Depth, 4 to 82 fathoms. 



Material examined. — See table, page 108. 



COLLODES OBESUS A. MUne Edwards 



Plate 36, figs. 3 and 4; plate 217, figs. 2-5 



Collodes obesus A. Milne Edwards, Crust. Reg. Max., 1878, p. 177; 1879, pi. 32, 

 figs. 3-3d (type-locality, near Sombrero, Florida Strait, 54 fathoms; holotype 

 in M. C. Z.j. 



Diagnosis. — Carapace narrow, entirely covered with granules. 

 Postorbital lobes large and turned outward, not forward. 



Description (after A. Milne Edwards) . — Near 



trispinosus. Distinguished by the form of the 



carapace which is longer and narrower, but 



wider across the postorbital lobes. Surface 



entirely covered with large flattened granules. 



Postorbital lobes broadly triangular and turned 



directly outward, the anterior margin being 



quite transverse. Median spines as in 



trispinosus. Inner, lower crest of basal 



antcnnal article ornamented with three large spiuiform teeth; the 



outer edge bears three teeth followed by small granules. Chelipeds 



5487— 25t 9 



Fig. 33.— Collodes obeevs 

 fem.^le (46984), rostrum 

 of carapace 11 mm. long 



