£ 
CHAP. III. } THE CRUISES OF THE ‘ PORCUPINE, 97 
ECHINODERMATA.—Ophiocten sericeum, Forxs ; 
several well-grown specimens. 
Echinocucumnis typica, SARs. ‘This seems to be a 
very widely distributed species; we got it in 
almost all our deep dredgings, both in the 
warm and in the cold areas. 
A remarkable stalked crinoid allied to Rhizocrinus, 
but presenting some very marked differences, 
Potyzoa. —Salicornaria, sp. v. 
C@LENTERATA.— Two fragments of a _ hydroid 
zoophyte. 
Prorozoa.—Numerous foraminifera belonging to 
the groups already indicated as specially charac- 
teristic of these abyssal waters; together with a 
branching flexible rhizopod, having a chitinous cortex 
studded with globigerinse, which encloses a sarcodic 
medulla of olive-green hue. This singular organism, 
of which fragments had been detected in other dredg- 
ings, here presented itself in great abundance. 
One or two small Sponges, which seem to be 
referable to a new group. 
On Friday, July 23, we tried another haul at 
the same depth; but when the dredge came up at 
1.30 p.m. it was found that the rope had fouled and 
lapped right round the dredge-bag, and that there 
was nothing in the dredge. ‘The dredge was sent 
down again at 3 P.M.,and was brought up at 11 P.M., 
with upwards of 2 cwt. of ooze.—We got from 
this haul a new species of Plewrotoma and one of 
Dentalium ; Scrobicularia nitida, MULLER; Dacry- 
dium vitrewn, TORELL; Ophiacantha spinulosa, M. 
and T.; and Ophiocten kréyeri, LivKEN; with a 
few crustaceans and many foraminifera. 
H 
