NARRATIVE OF THE CRUISE. 
775 
abundance. Over a peck of heavy very compact oval nodules was obtained from 2750 
fathoms on the 11th September. The largest were 4 inches in diameter and 2 inches 
thick, the upper surface was smooth while the under one was rough and irregular. 
Although differing in size, most of them had the same shape, indeed it may be 
remarked that there is generally a close resemblance both in composition and shape and 
sometimes in size among the nodules from any single dredging. Along with the nodules 
were sixteen Sharks’ teeth of considerable size, two being those of Carcharodon, nine 
of Oxyrhina, and four of Lamna; some of these were deeply imbedded in deposits of 
manganese. There were in addition to the above eight earbones of Cetaceans belonging 
to the genera Globiocephalus, Mesoplodon, and species of Delphinidse. 
On the 16th September, from 2350 fathoms, the trawl brought up more than 
half a ton of manganese nodules which filled two small casks. The great majority 
were small and nearly round, resembling a number of marbles with a mean diameter 
of three quarters of an inch. Their nuclei were generally palagonite or other 
volcanic material, but very frequently small Sharks’ teeth or fragments of bone. 
Among the nodules were counted two hundred and fifty Sharks’ teeth, without taking 
into account those less than half an inch in length. Three of the teeth belonged to 
Carcharodon, being from 2 to 2^ inches across at the base of the dentine. Ten resembled 
those of Carcharias, and the remainder were referred to the genera Lamna and 
Oxyrhinci. The Cetacean bones among the nodules consisted of two tympano-periotic 
bones of Mesoplodon, eight separate petrous bones, and six tympanic bullae belonging 
to Globiocephalus, Delphinus, and Kogia (T). 
The dredgings and trawlings in this section did not yield a very large number of deep- 
sea animals. From 3000 fathoms there were fragments of Euplectella and another siliceous 
Sponge, and a large specimen of a hydroid ( Stephanoscyphus ). From 2750 fathoms 
there were five specimens of Holothurians belonging to two new genera ( Psycheotrephes 
exigua, Theel, and Benthodytes selenkiana, Theel), a Starfish belonging to a new genus 
(Hyphalaster hyalinus, Sladen), a Pennatulid, fragments of siliceous Sponges, and two 
small Actiniae adhering to the manganese nodules. From 2600 fathoms several 
siliceous Sponges, two Annelids, and the following Echinoderms : — Phormosoma tenue, 
A. Ag., Pourtalesia rosea, A. Ag., and Aceste bellidifera, A. Ag., were obtained. 
The trawling in 2425 fathoms gave three deep-sea fish and twenty-seven deep-sea 
invertebrates, among which were the following Piscina atlantica, King; Cory- 
phcenoides variabilis, Gunth.; Scopelus macrostoma, Giinth.; Ilomolampas fulva, 
A. Ag.; Culeolus moseleyi, Herdman; Peniagone wyvillii, Theel; Benthodytes papilli- 
fera, Theel; Bathydoris abyssorum, Bergh; and Area corpulenta, Smith. From 2350 
fathoms there were an Ophiurid ( Ophiochytra epigrus, Lyman), several Shrimps, and a 
Stephanoscyphus attached to the manganese nodules. It should of course be 
remembered that the fish and shrimps above mentioned are probably not from the 
)narr. chall. exp. — vol. i. — 1885J 98 
