144 BULLETIN OF THE 



carapax. The antero-lateral 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 

 the 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 deflexed, very little projecting : 

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

 the external antennae falls considerably short of reaching the front. There 

 is no i idge on the endostome. Feet setose ; greater cheliped less setose 

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

 subcqual granules, regularly crowded, and diminishing in size below j 

 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 ; 

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

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

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

 of the front. External maxilUpeds 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 antenna?, 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 forward, 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 four or five spines 



