Indian Deep-sea Dredging. 273 
width of the inner; the former is strengthened by a stout 
midrib and by a thickening of the outer margin, which ter- 
minates a good way from the apex in a prominent spine of 
the same size and character as that of the antennal scale; an 
inflexible dizeresis extends inwards from the base of this spine 
up to the midrib, The inner ramus is strengthened by a 
similar midrib, from near the base of which a ‘ridge extends 
obliquely inwards and backwards to the inner margin. 
The legs of the first to the third pairs of opposite sides 
touch one another in the middle line, and their sterna are 
hence invisible without dissection; those of the last two 
pairs, on the contrary, are wider apart and their sterna are 
plainly visible and have the form of an inverted T, the cross 
stroke of which is, in the hinder and larger of the two, pro- 
duced forwards, between the bases of the legs of the last par 
and over its own down-stroke, as an acute. angular (¢) or 
semicircular (? ) plate, beneath the sides of which the genital 
apertures can in the male be concealed. 
The brarelial formula is as follows :— 
Somites and 
their Podo- Arthro- Pleuro- 
appendages. branchivw. branchiw. —branchie. 
NETS 25. O(ep.) 0 O =O+ep. 
WALT. 3 O(ep.) 0 QO =0+ep. 
1D. Saar O(ep.7.) Oe O =0O+r.tep.r. 
XE 0) 2: i eilsap. 
2: eater 0) D 1 =1-+4y7. 
2 GU Ree 0 ? LT -=1-r. 
UD Lean 0 in See 
EV .. 0 0 i 
2ep.tep.r. +5r. +5 =5+5r.+2ep.+ ep.r. 
35. [Psalidopus Hualeyi, sp.n. (Pl. XIV. figs. 1, 2, 7.) 
@. Stouter. ‘Thoracic and abdominal sterna unarmed. 
No tubercle between the last spine of the dorsal ridge and 
the posterior margin of the carapace. 
Colour in life brilliant old-ivory white or straw-colour. 
millim. 
Total length from apex of rostrum to tip of telson in 
a straight MUO Maastopa rer vette: xciors jarteie oer eRe wo LAY 
Length of rostrum from supra-orbital, margin in a 
straight NTI O eens Ghags take erat ued orem peat 51:5 
Length of carapace from supra-orbital to posterior 
TMOTQIN: Fake ecient 6 PO acdc dade Aamiaceet 28:5 
Length of abdomen from middle of anterior margin 
of first tergum to tip of telson ..... Beeiicict. OS 
Length of telson cinta eee ee ee eEee aad. < civic LOO 
Length of antennal scale, j 54.0. menierrasiic > = a potent 21 
Width of Sate dno \ glatth label sual errata MPR caters caw s 6 
Length of antennulary ‘flazella Ba rink, Oi oe 50 HU 
