The subclieliiorm fourtli pair of legs reach very slightly beyond the end 

 of the carpus of the preceding pair : the merus has 3 or 4 spines on the lower 

 border and a terminal spine on the upper border, the claw-like dactylus closes 

 against a bunch of spines on the near end of the propus. 



From the Andaman Sea, 79-90 fms. 



Subgenus Homolax. 



HomoJa jnegalops, Alcock. 



Homola megalops, Alcock, Ann. Mng. Nat. Hist., May 1894, p. 408 : Illustrations of the Zoology of the 

 R. I. II. S. ' Investigator,' Crustacea pi. xiv. figs. 1, la. 



Carapace urn-shaped, its greatest breadth is across the middle of the 

 brancliial region ; its sides, and still more the spinulate lateral borders of its 

 dorsum, are elegantly curved ; the hairs that cover it are so inconspicuous as to 

 be recognizable only with a lens. 



Eostrum a depressed grooved tooth, entire, or emarginate at tip. Four 

 spines on the anterior border of the carapace arranged as in H. barhata. 



The only enlarged spine of the lateral border stands alone on the hepatic 

 region. 



Nine spines on the gastric region — two immediately behind the spines at 

 the base of the rostrum, the other seven in an open S-shaped curve across the 

 middle of the region. 



A single row of spines on the subocular region, which region is remarkably 

 hollowed for the reception of the retracted eye. Two spines, one above the 

 other, on the carapace beside the antenna-peduncle, in addition to the bluntly- 

 dentiform suborbital angle. 



Eyes reniform, very large, their major diameter being one-sixth the breadth 

 of the carapace. 



Chelipeds slender, their arms and wrists distinctly slenderer than the 

 nieropodites of the legs : in the adult male they do not reach half-way along the 

 merus of the first pair of legs : they are covered with a short inconspicuous 

 velvet, with hardly any long bristles on the edges of the joints : they are armed 

 much as in H. barbafa, but the dipper border of the hand is spiny and the lower 

 border faintly denticulate. The fingers, which have a sharp entire cutting-edge, 

 are as long as the rest of the hand. 



The legs have the surface — especially the dorsal surface — of most of the 

 joints covered with a close short velvet, but have few or no bristles along their 

 edges. The 2nd and 3rd pair, which are nearly a dactylus longer than the first, 

 are nearly three times as long as the carapace : the subcheliform 4th pair reach 

 beyond the end of the carpus of the preceding jjair. The first three pair have 



