1210 
THE VOYAGE OF H.M.S. CHALLENGER. 
Statu’.v 327. 
Orgamsms from 
SI'BFACI-N ET8, 
.Statiok 32^. 
Surface Organisms. — The following species are recorded from the surface at this 
Station : — 
Sii'iioxorHOR.t: (Haeckel, Zool. pt. 77). 
Porpema mahisa, n.sp. 
DIphyopsis conijircssa, n.g., n.sp. 
CorKiHiDA (Brady, Zool. pt. 23). 
Cahinus vahjus, n.sp. 
Candace pachydactyla, Dana. 
Centrapages violaceus (Claus). 
J*onteIlopsis vdlosa, n.g., n.sp. 
( Jncwa ohtusa (Dana). 
AmphiihIda (Stebbing, Zool. pt. 67). 
PhronimeUa sp. (?). 
SCHIZOPODA (Sars, Zool. pt. 37). 
Thysanoessa gregaria, n.sp. 
Siriella thompsoni (M. -Edwards). 
Pteropoda (Pelseneer, Zool. pt. 65). 
Clio (Creseis) acicula (Rang). 
, Cavolinia injiexa (Lesueur). 
Tunicata (Herdman, Zool. pt. 76). 
Salpa democratica - mucronata, 
ForskS,!. 
In addition, the following are recorded in the note-books : — Oscillatoriacese 
{Trichodesmium), Glohigerma, OrhuUna, Hastigerina, Acanthometrse and compound 
Rndiolaria, Medusrn, small Velellse, Ctenophorm, Sagitta, Alciopa, Mysids, small lanthinse 
and other .small shells, Pteropods and larvae, including a naked form and larvae of 
CymhuUa (?), Appemlicidaria, large Salpx with leathery tests having Coccospheres and 
Rhabdospheres in the stomachs, and many small fishes, including a Scopelid, an inch 
in length, with brilliant scales. 
Station 328 (Sounding 478), Rio de la Plata to Tristan da Cunha (see Chart 16 
and Diagram 6). 
March 6, 1876 ; lat. 37“ 38' S., long. 30“ 36' W. 
Temperature of air at noon, 65“'8 ; mean for the day, 62°‘0. 
1’enipcraturo f)f water at surface, 68“'0 ; bottom, 32“'0. 
Density at 60“ F. at .surfiice, 1 •02571. 
Depth, 2900 fathoms; deposit. Red Clay, containing no carbonate of lime (see 
Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
At 11.10 A.M. shortened and furled sails, and proceeded under steam to sound. 
At 1 P..M. sounded in 2900 fathoms. The sounding-tube brought up over a litre of the 
elay, of which the up[»er layers were slightly darker than the lower. On account of the 
heavy sea no temperature observations were attempted. At 2 p.m. completed sounding 
