Boone, Crustacea, Cruise of "Alva," 1931 145 



the anterior lateral walls of the carapace, and a larger tubercle each, 

 at the outer and inner inferior orbital angles. The antennulae fold 

 almost transversely and are well separated by a wide interantennular 

 fossett. The antennae have the basal article elongated, touching the 

 deflected frontal margin at the inner distal angle, and the outer or- 

 bital angle ; the flagellum is small, less than half the length of the orbit. 



The external maxillipeds are close fitting, the distal meral margin 

 nearly straight, the outer surface of the maxillipeds is covered with a 

 fine thick pubescence, as is the adjacent underside of the carapace. 



The eye stalk is thick, and encased in a calcareous cover, which ter- 

 minates in a rounded projection on the upper surface of the eye; the 

 cornea is large, set obliquely terminal. 



The male belt is five-jointed, the female belt, seven-jointed. 



The chelipeds are decidedly unequal in the male, with a short 

 merus, closely oppressed to the body. The upper anterior meral mar- 

 gin has a thick fringe of setae; the outer surface of the merus is 

 rounded, and granulose towards the distal end. The carpus is rounded 

 on the upper surface and covered with a series of coarse, spinose gran- 

 ules, semi-concealed in dense pubescence; the propodus is similarly 

 covered with coarse spinose granules and pubescence, on the upper 

 and outer surface, these tubercles being larger, and arranged in ap- 

 proximately longitudinal series, on the upper half of the palm; the 

 fingers are short, down-curved, spoon-shaped, those of the larger claw 

 with a slight gape, those of the smaller claw meeting throughout their 

 length. Both upper fingers have the proximal half rough, with coarse 

 granules ; the fingers are brownish black, except for the creamy mar- 

 gin at the tip. 



The ambulatories are short and stout, with the merus, carpus and 

 propodus flattened, nearly as wide as long; their upper lateral mar- 

 gin, and in less degree, upper surface roughened with spinose 

 granules ; the dactyl is stout, with a curved, horny tip. All the am- 

 bulatories are covered on their upper surface with a coarse shaggy 

 pubescence. The above described specimens are from Bali, Dutch 

 East Indies. Specimens from Tahiti have less pubescence, and more 

 and larger spinose granules on the ambulatories. The Tahiti specimens 

 are twenty to fifty percentum smaller than those from Bali. One large 

 specimen, a female, from Ingram Reef, Queensland, Australia, has 

 shaggy ambulatories with very few spinules along their lateral margin. 

 However the great cheliped has more and larger granules, than any of 

 the other specimens, and the fingers are curiously totally lacking in 



