274 Indian Deep-Sea Dredyin J 
A single ovigerous female was taken on April 12, 1888, 
7 miles east of N. Cinque Island, Andaman Sea, in 490 
fathoms. 
It carried twelve very large eggs, which in spirit measure 
no less than 3°8 x 2°7 millim. ] 
36. Psalidopus spiniventris, sp. n. 
(Pl. XIV. figs. 3-6a, 8; Pl. XV. figs. 1-10.) 
3 ¢. Slenderer. Two posterior thoracic and all the 
abdominal sterna with an erect spine in the middle line. A 
conical tubercle between the last spine of the dorsal ridge 
and the posterior margin of the carapace. 
Colour in life deep-sea pink with white points. 
Male. Female. 
millim. — millim. 
Total length from apex of rostrum to tip 
of telson in a straight line............ 106 123°5 
Length of rostrum from supra-orbital 
margin in a straight line (tip gone in 
TNA) 4 Acherces cote eee aca ee oe 40 51:5 
Length of carapace from supra-orbital to 
POSterlOF MaRO Mics See etre See eina 20 25 
Length of abdomen from middle of an- 
terior margin of first tergum to tip of 
TOlSOM. 26 cca sia cattonete 2 he eh neuton aus 47 59 
engthy of telson a.) eerie ons cit coepiog qatD 18 
Length of antennal scale ............. eG 19 
Width of of 5, MouNe Sctmiaye ORNS 3 oS) 
Length of antennulary Hagella.......... o7 35 
An adult male and female, with one young specimen, were 
obtained at Station 116, 405 fathoms. 
A small pair, in which the rostrum is much larger in the 
female than in the male, have come to light in the sorting of 
past seasons’ collections. They were taken 8 miles 8.E. of 
Cinque Island, Andaman Sea, in 500 fathoms. 
Colour in life “ more of a boiled lobster tint” [¢. e. than 
other Crustaceans obtained at the same time and described in 
the same notes as pink and blood-red], ‘ deepest on the 
spines”’ (G. M. Giles). 
EXPLANATION OF THE PLATES. 
PiLatE XIV. 
Fig. 1. Psalidopus Huxleyi, 2, from the left side. Nat. size. 
Fig. 2. The caudal swimmeret of the same, from above. Nat. size. 
Fig. 3. Psalidopus spiniventris, °. Peduncle of the left antennule, from 
above. X4. 
Fig. 4. Left antennal scale of the same, from above. Nat. size. 
bo 
