SUMMARY OF RESULTS. 
1193 
Excluding Protozoa, nearly 500 specimens of invertebrates and fishes were obtained 
at this Station, belonging to about 127 species, of which 103 are new to science, including 
representatives of 19 new genera ; 80 of the new species and 6 new genera were not 
obtained elsewhere. 
Surface Organisms. — The following species are recorded from the surface at this 
Station ; — 
CoPEPODA (Brady, Zool. pt. 23). 
Calanus propinquus, n.sp. 
Rhinccilanus gigcis, n.sp. 
Pleuromma ahdominale (Lubbock). 
Heterochseta spinifrons, Claus. 
ScHizopoDA (Sars, Zool. pt. 37). 
Thysanoessa macrura, n.sp. 
Tunicata (Herdman, Zool. pt. 76). 
Salpa cordiformis-zonaria, Quoy and 
Gaimard — Pallas. 
In addition, the following are recorded in the note-books : — Peridinium, Globigerina, 
Acanthometrse and compound Eadiolaria, Carchesium and other Infusoria, Medusae, 
Siphonophorse, Sagitta, Annelid larvae, Hyperids and other Amphipods, Squilla larvae, 
Mysis, Euphausia, Amphion (?), Zoeae, Appendicularia. The tow-net at the weights 
gave some deep-sea Eadiolaria [Challengeria, &c.), large Sagittse, and other things. 
The Challenger remained at Monte Video from the afternoon of February 15 till 
5 A.M. on February 25, 1876 (see Narr. Chall. Exp., vol. i. p. 907), The water oft‘ 
Monte Video was of a reddish or fawn colour, and contained a few Diatoms and Copepods. 
Station 321 (Sounding 471), Eio de la Plata to Tristan da Cunha. 
February 25, 1876 ; lat. 35° 2' S., long. 55° 15' W. 
Temperature of air at noon, 79°‘8 ; mean for the day, 73°‘9. 
Temperature of water at surface, 7 3° '5. 
Depth, 13 fathoms ; deposit, Blue Mud, containing 113 per cent, of carbonate of 
lime (see Murray and Eenard, Deep-Sea Deposits Chall. Exp.). 
At 5 A.M. weighed anchor, swung ship, and then proceeded down the river. At 4 p.m. 
stopped and put over trawl in 13 fathoms, which came up at 5 p.m. with a large quantity 
of tenaceous mud and numerous specimens. Position of Station about 8 miles south of 
Punta Negra at the mouth of the Eio de la Plata. 
The following species are recorded in the Zoological Eeports from the trawl at this 
Station : — 
Station '. YK ). 
Organisms from 
Surface-Nets. 
At Monte 
Video. 
Station . 321 . 
