144 BULLETIN OF THE 



carapax. The antero-latcral margin in these characters resembles that 

 of Xantho and Panopeus rather than that of the ordinary Pilumni. The 

 subhepatic region is granulated, and bears a minute tooth beneath 

 tht' interval between the angle of the orbit and the next marginal tooth. 

 Orbit with a distinct notch beneath the outer angle ; margins otherwise 

 entire, above and below. Front somewhat detlexed, very little projecting; 

 margin unarmed and profoundly notched at the middle. The basal joint of 

 the external antenna' talis considerably short of reaching the front. There 

 is no ridge on the endostome. Feet setose ; greater ebeliped less setose 

 than the rest; carpus and hand covered externally and above with small, 

 subequal granules, regularly crowded, and diminishing in size below ■ 

 carpus with two minute, sharp teeth at the inner angle. Ambulatory 

 feet with a few minute, short spines along the superior edge. Color 

 yellowish, marbled with red. 



Dimensions of a male: Length of carapax, 0.18 inch; breadth, 0.25 

 inch; proportion, 1 : 1.38. 



A male and a female of this species were found on the reef at Cruz del 

 Padre, Cuba. 



Melybia nov. gen. 



Carapax broad, subquadrate ; front rather depressed, very broad ; 

 anterolateral margin short, only one third as long as the postero-lateral, 

 and armed with three or four teeth. Basal joint of the external antenna? 

 occupying the hiatus of the orbit, firmly soldered, and reaching a process 

 of the front. External maxillipeds very narrow, widely gaping ; exognath 

 half the width of the endognath. Feet all spinulose ; chelipeds rather 

 large, even in the female ; ambulatory feet long, slender, and compressed. 



This genus is closely allied to Melia, but differs therefrom in its broader 

 carapax, three-toothed antero-lateral margin, firmly soldered basal-joint 

 of the external anteiiu:e, broader exognath of the external maxillipeds, 

 and spinulose feet. It has somewhat the appearance of a Thalamita. 



Melybia thalamita nov. sp. 

 Carapax somewhat convex, slightly pubescent; surface nearly smooth 

 and even; regions faintly defined. Antero-lateral margin three-toothed 

 (the little-prominent angle of the orbit not included) ; teeth spiniform, 

 pointing tin-ward, the anterior one longest, the posterior one minute. 

 Front bilobed; margin of the lobes nearly straight. Orbit with two 

 fissures above, and one below near the outer side; margins smooth or 

 minutely crenulated. Subhepatic region minutely granulated. In the 

 chelipeds the meros-joint is spinulose along the upper 'edge, and armed 

 with two slender spines on the inner edge; carpus with tour or five spines 



