OXYSTOMATOUS AND ALLIED CRABS OF AMERICA 



141 



The granules of the other appendages are in general smaller than 

 those of the carapace, but some frequently project above the others 

 in an obtuse point; this is the case in the merus of chelipeds and on 

 the three middle articles of the legs; the dactyl of the latter append- 

 ages is ornamented with stiff hairs. Granules form a swelling on 

 upper border of wrist and also terminate the upper beveled edge of 

 the palm. (After A. Milne Edwards and Bouvier.) 



Figure 36. — Lithadia granulosa: a, Carapace of female, dorsal view; b, left cheliped, inner face; c, same, 

 outer face; d, first right ambulatory, outer face; e, last right ambulatory, outer face. X7H. After A. 

 Milne Edwards and Bouvier. 



Measurements. — Holotype female, length 7, width 8.1 mm. 



Range. — Known only from the type specimen, from off Frederick- 

 sted, St. CroLx Island, West Indies; 115 fathoms; R. brk. Sh.; 

 temp. 65° F.; station 132, Blake, 1878-79. 



Genus SPELOEOPHORUS A. Milne Edwards 



Speloeophorus A. Milne Edwards, Ann. Soc. Ent. France, ser. 4, vol. 5, p. 148, 

 1865 [type, S. nodosus (Bell)]. — Rathbun, Bull. U. S. Fish Comni. for 

 1900, vol. 20, pt. 2, p. 88, 1901. 



Carapace broad, roughly pentagonal, hexagonal or octagonal; 

 lateral borders considerably prolonged over the base of the legs. 

 Posterior half with a deep cavity in either branchial region which is 

 roofed wholly or in part by a bridge formed by an extension of the 

 cardiac region meeting a similar extension of the branchial region 



