82 THE VOYAGE OF H.M.S. CHALLENGER. 



the form of the three hook-shaped processes on the appendages of the first pair, as shown 

 in tlie respective figures (compare figs. 3 and 13). 



The telson and uropoda (fig. 16) would not seem to differ essentially from those parts 

 in Eiiphausia similis. 



Colour. — According to Dana, this species, in a living state, is more 'or less tinged with 

 red or purple, especially along the ventral face of the body. 



Habitat. — The specimens in the collection were taken at the surface of the sea in the 

 following localities, as shown in the table : — 



The specimens examined by Dana were collected in She tropical region of the 

 Atlantic (lat. 2° N.). 



Distribxition.- — The distribution of the present species, as yet known, would accord- 

 ingly seem to be chiefly restricted to the southern parts of the Atlantic and Pacific 

 Oceans. 



17. Eupliausia imtrrayi, G. 0. Sars (PL XIV. figs. 1-4). 



Eupliausia raurrayi, G. 0. Sars, Preliminary Notices on the Challenger Schizopoda, No. 16. 



Specific Cliaracters. — Form of body somewhat more slender than in Eiqyhausia 

 splendens. Carapace rather elongate, with a single lateral denticle, placed in front of the 

 middle of the inferior margin ; anterior part very slightly keeled above ; rostral projection 

 short ; frontal margin forming on either side, above the eyes, an obtuse angle. Caudal 

 segments smooth above, with rather deep epimera, the posterior pair triangular, produced 

 posteriorly. Last segment not much longer than preceding ; preanal spine obsolete. 

 Eyes short and thick, claviform. Antennular peduncle pro^dded above at the end of the 

 basal joint with an anteriorly pointing lobe, obliquely emarginate at the tip. Antenna! 

 scale oblong, truncate at apex, denticle of outer angle very small. Gill-trunks very 

 broad and flattened, with numerous exceedingly slender, well-nigh filiform lobules. 

 Telson with three pairs of dorsal denticles ; subapical spines smooth. Inner plate of 

 uropoda very slightly overreaching outer. Length attaining 43 mm. 



Remarks. — Next to Eupliausia superha, this Eupliausia, is the largest in the coUec- 



