110 PERCY SLADEN TRUST EXPEDITION 



to a sharp apical tooth, while the inner margin is rounded off distally in each division to 

 meet the base of the tooth, not obliquely truncate as in the specimens originally described, 

 nor produced to the end of the tooth as in Janira maculosa, Leach, the general 

 appearance both here and in J. nana being suggestive of a coalescence of two long rami. 

 As will be seen, the inner setiferous terminals in the two species are strikingly different. 

 The second pleopods of the male have the characteristic sharply pointed masculine 

 appendix, but the outer plate is here squared below, not narrowly rounded as in J. nana, 

 nor somewhat acute-angled as in J. maculosa. 



The almost circular opercular plate constituted by the first pleopods of the female, 

 instead of being distally truncate as in J. maculosa, is here emarginate. 



The uropods were missing from all the seven adult specimens, but one of the two 

 females had young ones in an advanced stage of development in her marsupium. These 

 indicated the general character of the second antennas and of the uropods, the latter 

 having as might be expected a fairly long peduncle supporting two setiferous rami, of 

 which the inner is the longer. 



The colour of all the specimens was claret red. 



Length 2 mm. ./. nana, also described from an adult male, measured 1*5 mm. The 

 length of J. minuta is not stated, but the specific name implies that it is very small. 



Locality. Egmont. Along with two males and an ovigerous female in the 

 same tube there was an antenna, consisting of a long penultimate peduncular joint, 

 followed by another joint rather longer, and a flagellum of nearly a hundred very small 

 joints. It is not improbable that this appendage had become detached from one of the 

 male specimens. The female specimen, carrying large eggs, had one of the first 

 gnathopods still attached. 



Fam. Stenetriidse. 



1905. Stenetriidaj, H. J. Hansen, Proc. Zool. Soc. London, 1904, pt. 2, p. 315. 



Gen. STENETRIUM, Haswell. 



1881. Stenctrium, Haswell, Pr. Linn. Soc. N. S. Wales, vol. v., p. 478. 

 26. Stenctrium chiltoni, Stebbing. 



1905. Stenctrium chiltoni, Stebbing, Herdman's Ceylon Pearl Fish., Pep. 23, 

 p. 54, pi. 12 a. 



A specimen only 2 mm. long, with antennae broken, and uropods missing, which 

 seemingly belongs to this species, was taken at Amirante, station E 9, from a depth of 

 34 fathoms. 



Tribe EPICARIDEA. 



1825. Epicarides, Latreille, Fam. Nat. du Pegne Animal, p. 291. 



1882. Epicarida, G. 0. Sars, Forh. Selsk. Christian., No. 18, p. 18. 

 1893. Epicaridea, Stebbing, History of Crustacea, p. 392. 



1898. Epicarida, Sars, Crustacea of Norway, vol. ii., pt. 11, p. 193. 



