Indian Deep-sea Dredging. 243 



In colour in the fresh state it varies from pure pink to 

 salmon-red. 



It sometimes occurs in clean Dentnliam shells, but usually 

 inhabits the shell of a Trochus wliich is incrusted usually 

 with a species of Epizoanthus^ but sometimes with a solitary 

 species of Actiniid. 



73. ? Parapagurus mo7istrosuSj sp. n. 



The well-calcified anterior portion of the carapace is con- 

 vex, smooth, and polished, with the gastric region and tiie 

 hepatic regions sharply circumscribed by deep incisions ; the 

 frontal margin is sinuous and at tiie sides is carried far in 

 advance of the inconspicuous, broadly rounded, faintly 

 carinated rostrum, these lateral projections reaching almost 

 to the level of the distal end of the basal joint of the antennae ; 

 the posterior portion of the carapace is extremely thin, but is 

 quite appreciably and uniformly calcilied ; its surface is 

 smooth and bears some long scattered hairs. 



The eye-stalks are short and stout, less than one third the 

 length of the carapace, and gradually increase in diameter 

 towards the expanded corner ; dorsally they are crested by 

 a line of long hairs ; the ophthalmic scales are acute. The 

 antennulary peduncles exceed the eye-stalks by the whole 

 length of the terminal joint. The antennal peduncles are 

 but slightly longer than the eye-stalks ; their basal joint is 

 expanded and has the usual strong spine at the antero- 

 external angle ; the antennal acicle is doubly curved, with 

 the inner margin setose and strongly serrated; its point 

 reaches just beyond the origin of the flagellum ; the last is 

 not far short of twice the length of the body. 



The chelipeds are most remarkably unequal, the right 

 exceeding the left in bulk many times and in length by 

 somewhat more than its dactylopodite ; both are pubescent 

 above, and the right is sharply granular above and slightly 

 so below. In the right cheliped the meropodite and carpo- 

 podite are also pubescent below, and the margins of the latter, 

 like those of the propodite and like the upper margin of the 

 dactylopodite, are closely and sharply serrated. The left 

 cheliped is hardly more massive than tiie corresponding 

 portion of the second or third leg, and is smooth throughout. 

 In the second and third legs the upper borders of the merus, 

 carpus, and propus are crenulate or bluntly serrate, and, like 

 the upper border of tiie long sinuous dactyl us, hairy. 



The gill-elements have the form of small filaments, similar 

 in shape to, but smaller and far more delicate than, those of 

 Parapagurus ahyssorum. 



