CHAP, in.] THE CRUISES OF THE 'PORCUPINE: 97 



ECHINODERMATA. Opliiocten sericeum, FORBES ; 



several well-grown specimens. 

 JSchinocucumis 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 Rhizocrimis, 

 but presenting some very marked differences. 

 POLYZOA. Salicornaria, sp. n. 

 COELENTERATA. -- T\vo fragments of a hydroid 

 zoophyte. 



PROTOZOA. Numerous foraminifera belonging to 

 the groups already indicated as specially charac- 

 eristic of these abyssal waters ; together with a 

 ranching flexible rhizopod, having a chitinous cortex 

 tudded with globigerinae, 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 

 tmmd the dredge-bag, and that there was nothing in 

 the dredge. The dredge was sent down again at 3 P.M., 

 ind was brought up at 11 P.M., with upwards of 

 I cwt. of ooze. We got from this haul a new 

 species of. Pleurotowa and one of Dentalhim ; 

 ^crolicularia nitida, MTJLLER ; Dacrydmm vilre-itw, 

 CORELL; Opliiacantlia spinulosa, M. and T. ; and 

 Opliiocten kroyeri, LUTKEX ; with a few crustaceans 

 md many foraminifera, 



it 



