11-JS 
THE VOYAGE OF H.M.S. CHALLENGER. 
>^rATtON 
Ajcimai.' 
Tiuwl 
300. At 4. ‘JO A.M. observed the island of Juan Fernandez in the west. At 4.30 a.m. 
shortened and furled sails, and got up steam. At 5.15 a.m. put trawl over and veered 
2700 fathoms. At G.30 a..m. brought ship to wind and sounded in 1375 fathoms. 
Obtained serisd temperatures down to bottom. The carbonic acid was determined in 
water from 50 fathoms and the bottom, and amounted respectively to 50 ‘4 and 
49‘3 milligrammes per litre. At 1 p.m. commenced heaving in trawl, which came up at 
4.25 P.M. with numerous specimens and a considerable quantity of ooze, in which were 
several small basaltic j)cbbles with a slight coating of manganese, and flat pieces of 
Inirdened tufa of a red colour with a thick coating of manganese. At 4.30 p.m. proceeded 
under steam and sail. Juan Fernandez in sight the whole afternoon. Diomedea exulans, 
Diomedea mdanophrijs (?), Procellaria maxima, mutton birds, petrels. Prion turtur, and 
Thalassidroma were seen. 
Juan Fernandez (East Pt.) distant at noon, 23 miles. Made good 74 miles. 
.Vmount of current 16 miles, direction N. 45° W. 
igoM 'I’he following species are recorded in the Zoological Reports from the trawl at this 
Station : — 
Hex.uti.n'KLLIDa (Schulze, Zool. pt. 53). 
Ilyaloncma poc7dum, n.sp. One specimen ; obtained at no other locality. 
.VcTixiARiA (Ilertwng, Zool. pt. 15). 
CoraUimorphiis j^i’ofundus, IMoseley, n.g., n.sp. One specimen ; obtained also at 
Station 293. 
Pfiractis cxcarata, n.sp. One specimen ; obtained at no other locality. 
Ophiodufcus sulcatus, n.g., n.sp. One specimen; obtained at no other locality. 
The only other species of the genus {Ophiodiscus 
annul atus) was taken at Station 299. 
.\«TKROiDKA (Sladcn, Zool. pt. 51). 
Dytojiter exdis, n.g., n.sp. Obtained also at Station 133 (var. gracilis). 
Iltjmenajfter x'icamm, n.sp. Two specimens ; obtained at no other locality. 
,, porosissnnu.s, n.sp. Two specimens ; obtained at no other locality. 
Hi.voiDRA (.\gnssiz, Zoo], pt. 9). 
Phormosonui hoplacantha, Wyvillc Thom.son, n.sp. Obtained also at Stations 164 b 
and 235. 
CyftrclnnuJi injvdlii, n.g., n.sji. Tlirce specimens; obtained also at Stations 146, 147, 
158, 296, and 299. 
