132 PERCY SLADEN TRUST EXPEDITION 



E. tenera, Hansen, 1910. 

 nee E. gracilis, Dana, 1852. 



Stations. C, 1200—0 fms., five; D, 120 fms., one ; F, 100 fms., two, 150 fins., three; 

 L, 75 fins., one, 125 fins., one; N, 600— fins., four; O, 180— fins., two; P, 20 fins., 

 two; Q, surface, seventeen; c, 275 — 300 fins., five; n, surface, one; p, 500 fms., one; 

 q, 1000 — fms., one; s, 250 — fms., forty-eight, 500 — 750 fms., one; v, surface, one; 

 J, surface, one; aa, 900 — fms., three; kk, 250 — 300 fms., three; mm, 400 fms., two; 

 nn, 200 fins., four. 



Genus Pseudeuphau.sia, Hansen. 



Euphausia (pars), Sars, 1885. 

 Euphausia, Stebbing, 1905. 

 Euphausia (pars), Tattersall, 1906. 

 Pseudeuphausia, Hansen, 1910. 



25. Pseudeuphausia latifrons (G. 0. Sars). 



Euphausia latifrons, G. 0. Sars, 1883. 

 Euphausia latifrons, Sars, 1885. 

 ■ Euphausia latifrons, Stebbing, 1905. 

 Euphausia latifrons, Tattersall, 1906. 

 Euphausia latifrons, Hansen, 1908. 

 Pseudeuphausia latifrons, Hansen, 1910. 



Station, k, 100 fins., one, 5 mm., 300 fms., one, 7 mm. 



In 1905 Stebbing pointed out that specimens of this species from near the Cape of 

 Good Hope possessed a lateral denticle on the carapace. In the next year I was able to 

 confirm this observation for specimens from Ceylon and I also pointed out that the leaflet 

 on the antennular peduncle did not agree exactly with Sars' figures. I gave a figure of 

 the antennular leaflet and mentioned the fact that my observations had been confirmed 

 by examination of the type specimens, kindly done for me by Dr W. T. Caiman. Hansen 

 (1908) confirmed my description of the antennular leaflet and in 1910 gave a full descrip- 

 tion of the species, with figures, in the course of which he refers it to a new genus, 

 Pseudeuphausia, difiering from Euphausia mainly in the aberrant condition of the 

 copulatory organs on the first pleopod of the male. 



Genus Nematoscelis, G. O. Sars. 

 26. Nematoscelis microps, G. 0. Sars. 



N. microps, G. 0. Sars, 1883. 

 N. microps, G. 0. Sars, 1885. 

 N. rostrata, G. O. Sars, 1885. 

 N. microps, Hansen, 1905. 

 N. microps, Tattersall, 1906. 

 N. microps, Hansen, 1910. 



