OXYSTOMATOUS AND ALLIED CRABS OF AMERICA IQ5 



lateral margin and slightly in advance of the widest part of the cara- 

 pace. Ocular peduncles short and wide; the cornea occupies at least 

 two-thirds of total length. The antennules are very long and slender 

 and cannot entirely fold up under the front. The roof of the orbit 

 is little advanced. Merus of outer maxilliped wider and more 

 rounded in front than in agassizii. 



Chelipeds of male short, granulous; arm scarcely projects beyond 

 carapace; fingers very high, sharp edged, very finely denticulate and 

 equal in length to palm. Ambulatory legs finely granulous, the first 

 two pairs long and slightly compressed in their terminal part, the 

 first pair with a fringe of long hair on the upper face of the three 

 distal articles. Legs of last two pairs very slender and elongate. 



Measurements. — Male (9498), length 5.7, width 5.8 mm. Female 

 (9517), length 5.5, width 5.6 mm. 



Range. — Gulf of Mexico; West Indies. 50 to 357 fathoms. 



Material examined. — See table 32, page 107. 



CYCLODORIPPE AGASSIZn A. Milne Edwards 



Figure 25; Plate 32, Figures 5, 6 



Cyclodorippe agassizii A. Milne Edwards, Bull. Mus. Coinp. Zool., vol. 8, p. 25 

 1880 (type locality, Cariacou, 163 fathoms; type, M. C. Z. no. 6680). — Bou- 

 viER, Bull. Soc. Philom. Paris, ser. 8, vol. 9, p. 66 [13], 1898. 



Cyclodorippe agassizi A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., 

 vol. 27, p. 94, pi. 19, figs. 1-7, pi. 20, figs. 1-3, 1902 (part). 



Diagnosis. — Four conical prominences on carapace, one cardiac, 

 one metagastric, two protogastric. Front triangular, having a lateral 

 angle. Orbit wide in dorsal view, its margin directed obliquely 

 backw^ard from rostrum. 



Description. — Carapace rounded on the sides, a little depressed 

 above, covered with fine, unequal granules rather near together. 



Figure 25.— Cyclodorippe agasmzii, male (68071): Outline of carapace, X 3. 



Kostrum wide, nearly horizontal and a Uttle excavate, and limited 

 in front by a denticulate border forming an obtuse angle; at the level 

 of the base of the ocular peduncles the two sides are directed nearly 

 parallel backward and at this point are more elevated than in front. 

 Upper border of orbit smooth and directed obliquely backward, rising 

 in a spiniform prominence at its outer extremity. A strong spine 

 above lateral border slightly in front of widest point of carapace. 

 Cardiac spine very large, embracing the entire region. Ocular pedun- 



