SUMMARY OF RESULTS, 
1237 
3.30 P.M. sounded in 1445 fathoms. The sounding-tube contained only a small quantity 
of deposit ; many of the Pteropod shells in the ooze were covered with a thin coating of 
manganese. Took serial temperatures down to 1000 fathoms. The carbonic acid was 
determined in water from 400 fathoms, and amounted to 44 T milligrammes per litre. 
At 5.45 P.M. completed temperatures and made sail. 
Ascension Island distant at noon, 132 miles. Made good 143 miles. Amount of 
current 14 miles, direction S. 60° W. 
Surface Organisms. — The following species are recorded from the surface at this 
Station : — 
Ramolaria (Haeckel, Zool. pt. 40). 
Rhaphidozoum ascensionis, Haeckel. 
Siphonosphsera socialis, Haeckel. 
Dicranastrum antilope, Haeckel. 
Xiphaxantha ciliata, Haeckel. 
Lychnaspis giltschii, Haeckel. 
Icosaspis elegans, Haeckel. 
Conchidium argiope, Haeckel. 
Coeloplegma tetradecastylum, Haeckel. 
CoPEPODA (Brady, Zool. pt. 23). 
Calanus propinquus, n.sp. 
,, gracilis, Dana. 
Undina vulgaris, Dana. 
Scolecithrix danse (Lubbock). 
Euchseta prestandrese, Philippi. 
Candace truncata, Dana. 
Centropages violaceus (Claus). 
Oithona challengerii, n.sp. 
Setella gracilis, Dana. 
Corycseus varius, Dana. 
„ pellucidus, Dana. 
Copilia mirahilis, Dana. 
Luhbochia squillimana, Claus. 
Oncsea ohtusct, Dana. 
The organisms obtained in the surface tow-nets indicated a truly tropical state of 
things, and included : — Peridinium tripos, Pyrocystis, Ethmodiscus, Coscinodiscus, and 
other Diatoms, Globigcrina, Pullenia, Sphseroidina, Pidvinulina, Acanthometrse, 
Polycystinse, compound and other Radiolaria, Medusae, Siphonophorae, larval 
Ctenophorae (?), Holothurian larvae, Sagitta, Tomopteris, Alciopa, Cijpridina, Copepods, 
Decapods and larvae, Atlanta, Pteropods and larvae, Appendicularia, and Salpa. 
Station 343 (Sounding 493), off Ascension (see Chart 43). 
March 27, 1876 ; lat. 8° 3' S., long. 14° 27' W. 
Temperature of air at noon, 76°*3 ; mean for the day, 78°’2. 
(summary of results chall. exp. — 1893.) 156 
Station 342. 
Organisms from 
Surface-Nets. 
Station 343. 
