Station 209. 
Organisms from 
THE Deposit. 
81 THE VOYAGE OF H.M.S. CHALLENGER. 
gigautic Sfyli/cr. Only one Lepadid Cirriped was found, attached to Molpadia. There 
were beautiful Ilolothurians with wheels (large and small) like those of Chirodota 
distributed in whitish patches all over the body. Very fine specimens of Sahella 
came up in long mud tubes. The Crustacea were represented by a particularly fine 
Stenorhynchid with long spiny legs, most of which were, however, broken off, and two 
other forms with one pair of legs on their backs, allied to the genus Cymopolia." 
Diatomace/E. — The following species of Diatoms were observed by Mr. Comber in the 
deposit from this Station (see also Murray and Eenard, Deep-Sea Deposits Chalk Exp.) : — 
Navicula hjra, Ehrenberg. 
,, clavata, Gregory. 
„ pndejrta, Ehrenberg. 
„ buUaia, Norman. 
,, bro/tiliensis, Grunow. 
„ indi'ca, Greville. 
„ bailet/ana, Grunow. 
„ durandii, Kitton. 
„ niteiceng, Ralfs. 
„ bombug, Kutzing. 
„ paiidura, Brebisson. 
„ agpera, Ehrenberg. 
„ sp. (?). 
AUoioneU antillanim, Cleve and Grunow. 
Plnirositpna affine, Grunow, var. normanni, Ralfa. 
„ naviculacea, Brebisson. 
NUzgehia vermicidata, Castracane. 
„ obesfi, Caatracane. 
„ pawluriformis, Gregory. 
„ plana. Smith. 
Synedra robuda, Ralfs. 
Surirella /astuom, Ehrenberg. 
„ recedeng, A. Schmidt. 
„ dives, Caatracane. 
Ckimj/j/lodiscus intermetlius, Greville. 
„ roljerisiantis, Greville. 
„ ambiguus, Greville ( = C. latus. 
Shad bolt). 
„ biangulcUus, Greville. 
„ ornaius, Greville. 
„ kittonianuH, Greville. 
„ unrlidalus, Greville. 
„ amjulaitu, Gregory. 
Aetinocyclm j/ruinosxu, Caatracane. 
,, derei, Caatracane. 
„ up. (?). 
Adinnptyrhus areolatus, A. Schmidt. 
Asteromphalua brookei, Bailey. 
Asteromphalus elegans, Greville ( = A. wyvillei, 
Castracane). 
„ roper ianus, Ralfs. 
Stictodiscus a^inis, Castracane. 
„ californicus, Greville. 
Cydotella slylorum, Brightwell. 
Coscinodisetts excentrievs, Ehrenberg. 
„ leptopus, Grunow. 
„ nitidus, Gregory. 
„ nitidulus, Grunow. 
„ marginatus, Ehrenberg. 
„ suhtilis, Ehrenberg. 
,, curvahdus, Grunow. 
„ „ var. suhocellatus, Grunow. 
„ radiatus, Ehrenberg. 
„ apollinis, Ehrenberg. 
,, afneanus, Janisch. 
„ „ var. walUchiana, Grunow. 
,, apiculatus, Ehrenberg. 
„ noduUfer, Janisch. 
,, reniformis, Castracane {^Stoschia 
admirahilis, Janisch). 
Pyxidicula cruciata, Ehrenberg. 
Pyxilla sp. (?). 
Paralia sulcata, Cleve. 
Stephanopyxis superha, Grunow. 
Podosira amhigua, Grunow. 
„ argm, Grunow. 
llemidiscus cuneiformis, Wallich. 
Triceraiium robertsianum, Greville. 
„ latum, Greville. 
„ favus, Ehrenberg. 
„ Jimbriatus, Ehrenberg. 
„ sp- (^)- 
Biddulphia tuomeyii, Roper. 
„ reticulcUa, Roper. 
„ ap. (?). 
