134 BULLETIN OF THE 



Epistome of moderate length. On the subhepatic region, near the afferent 

 ridge, and parallel to it, there is a slight supplementary ridge. External 

 maxillipeds naked ; ischium with the outer ridge tuberculated, and a few 

 tubercles on the surface near the extremity ; external angle of meros very 

 strongly prominent. On the sternum between the bases of the chelipeds 

 there are two small tubercles, one on either side of the median line. 

 Chelipeds long, naked, with the exception of some inconspicuous seta? 

 on the crest of the hand ; meros with denticulated margins, and with the 

 surface smooth and glossy above, except at the inner or posterior extremity, 

 where there are three or four small tubercles, and at the outer extremity, 

 where there is a granulated protuberance ; carpus with five denticulated 

 crests ; hand trigonous, with ten strong, regular, equal teeth on the superior 

 crest, twelve small, granulated teeth on the outer margin, and fifteen teeth, 

 increasing regularly in size toward the extremity, on the lower margin ; 

 upper surface of tbe hand with two rows of tubercles and two or three 

 scattered ones between the rows ; lower surface with three rows of tuber- 

 cles, those of the middle row minute and obsolescent toward the extremity ; 

 inner surface glabrous at the middle, and with a row of tubercles close 

 to either margin, and a few scattered ones near the fingers. All the 

 tubercles of the surfaces of the hand are ornamented with granules, from 

 two to five in number. Fingers very small and slender, one fifth as long 

 as the palm ; dactylua when retracted placed almost at a right angle with 

 the palm. Ambulatory feet compressed, naked, polished, with a lamini- 

 form crest above ; the meros of the posterior pair having a crest below 

 also, which has a lobe-like expansion at the inner extremity. Abdomen 

 tuberculated on the sides; that of the male not narrowed at the third 

 joint and very little tapering. 



Dimensions of a female specimen : Length of carapax, 0.45 ; breadth, 

 0.50 inch; proportion, 1 : 1.11; length of meros-joint of cheliped, 0.41; 

 length of hand, 0.50 inch. 



Off the Samboes, May 9, 1868. Cast No. 5. 80 fathoms. 

 Off Alligator Reef, May 8, 1869. Cast No. 6. 88 

 Off Alligator Reef, May 8, 1869. Cast No. 8. 110 



Solenolambrus tenellus nov. sp. 

 This species is much smaller than the preceding, and more delicate and 

 fragile in appearance. The carapax is but little shorter than broad, and 

 about equally produced in front and behind beyond the line of the 

 lateral angles. Surface rather coarsely punctate. Protuberances of the 

 carapax much less prominent than in the other species ; those of the gas- 

 tric and cardiac regions obtusely rounded, without angular ridges ; ridge 

 of branchial region sufficiently well marked near the postero-lateral margin, 



