i8o 



Records of the Indian Museum. ' [Vol XXIV, 



peduncle. The upper portion of the blade is strongly arched 

 and the rostrum is consequently deep in lateral view ; the lower 

 margin is straight at the base and slightly convex near the 

 tip. On the convex upper border there are from 5 to 7 teeth, 1 

 most commonly 6. The hindmost of these is usually situated on 

 the carapace behind the orbit and is not separated by any con- 

 siderable interval from the next of the series. On the lower bor- 

 der there are from o to 2 teeth, 2 usually 1. The precise position 

 of the ventral teeth is variable; the single tooth which the major- 

 ity of specimens possess is situated below the ultimate or penul- 

 timate member of the dorsal series. 



There is no supra-orbital spine. The hepatic spine is placed 

 some distance behind the antennal and is on a level with it. The 

 eye is moderately stout, with the stalk wider than the cornea. The 

 ocular spot is placed close to the cornea but is separate from it. 



The lateral process of the antennule (text-fig. 37a) reaches 

 to the middle of the basal segment ; the distal tooth of the outer 

 margin is slender. The free portion of the shorter ramus of the 



outer flagellum is much less* 

 than half the length of the 

 fused portion, the latter 

 comprising 7 to 9 segments. 

 The antennal scale (text-fig. 

 37&) is. from 2*5 to 275 

 times as long as wide ; the 

 outer margin is straight, ter- 

 minating in a spine which is 

 far exceeded by the narrowly 

 pointed apex of the lamella. 

 There is a small arthro- 

 branch on the third maxil- 

 liped. The first peraeopods 

 (text- fig. 39a) reach about to 

 the end of the antennal scale. 

 The carpus is about equal in 

 length with the merus and is 

 from 1*3 to r6 times as long 

 as the chela. The fingers 

 bear some tufts of setae 

 and are almost or quite as 

 long as the palm. They are 

 somewhat spatulate ; under 

 all ordinary magnifications 

 their cutting edges appear to be entire, but when viewed under 

 a high power of the microscope the edge is sometimes seen to be 



Text-fig. 37. — Periclimenes diversipes, 

 sp. nov. 



a. Antennule, 



b. Antennal scale. 



1 Of ninety-six specimens twenty-seven have 5 dorsal teeth, forty-eight 

 have 6 and twenty-one have 7. 



2 Of ninety-six specimens nineteen have no ventral teeth, seventy-five have 

 1 ventral tooth and two have 2 teeth. 



