524 ME. U. I. POCOCK ON THE 



Peripattjs jamaicensis, Grabham Sf CocTcerell, Nature, vol. 46, 

 p. 514 (1892). 



" Colour dark purpHsh brown, with no dark median dorsal line, . 

 the ends of the antennae sometimes pure white. 



" Number of pairs of legs 29 and 36 ; the claws are only 

 slightly curved, and not hooked as in Prof. Sedgwick's P. Ed- 

 wardsii. 



^'■JPapillcB are of two kinds." 



I have seen no fuller description of this species than that 

 cited above. 



Presumably the three Jamaican specimens in the British 

 Museum, briefly described by Prof. Sedgwick on p. 482 of his 

 monograph, belong to the same species. These specimens are in 

 a fairly good state of preservation ; they are of a uniform dark 

 brown above, paler beneath. Two of them, probably females, have 

 31 pairs of legs, and the papillae are, as usual, of two kinds, large 

 and small, the smaller lying between the larger : the latter, when 

 seen from above, are circular in outline ; when seen from the 

 side, conical, the summit either is circularly depressed or sup- 

 ports a subcylindrical setiferous distal portion. The claw^s are 

 normally curved as ia P. juliformis and P. trinidadensis. 



The third specimen has 37 pairs of legs, each leg of the 34th and 

 35th pairs being furnished w^ith two enlarged tubercles, such as 

 characterize the male of P. juliformis. These tubercles are not very 

 obvious, and appear to have been overlooked by Prof. Sedgwick. 

 The papillae on the dorsal surface seem to be all of one kind ; 

 they are small, conical in outline, close-set, and tipped with a 

 seta. Thus in three points this specimen seems to differ from 

 the other two — namely, in the greater number of its legs, the 

 form of the papillae, and the presence of two enlarged tubercles 

 on two of the posterior pairs of legs. The last is probably of 

 a sexual nature; it seems possible, too, that the first is also, in 

 which case this species presents a curious variation from P. juli- 

 formis, in w^hich the males have fewer legs than the female. 



Another specimen in the British Museum appears to be re- 

 ferable to this same species, although it differs considerably in 

 colour from Grosse's examples. This is the Dominican indi- 

 vidual obtained by Mr. G. P. Angas. This specimen has already 

 been briefly reported upon by Prof. Bell, Mr. Sclater, and Prof. 

 Sedgwick ; but these authors seem to have omitted to state that 

 the distal third of each antenna is pale yellow, and contrasts 



