chap, in.] THE CRUISES OF THE 'PORCUPINE.' 99 



another, and sometimes vividly illuminating the whole 

 outline of the star-fish. 



On the 27th we dredged in 862 fathoms (Station 42), 

 the weather being- still very fine, and the sea quite 

 smooth. The bottom was ooze, with sand and dead 

 shells. Among the Mollusca procured were a new 

 species of JPleuronectia, Leda abyssicola (Arctic), Leda 

 messmensis (a Sicilian tertiary fossil), Dentalkim 

 glgas (sp. n), Siphonodentalium (sp. n.), Ceri'.hium 

 metula, Amaura (sp. n.), Columbella haliceeti, Cylichna 

 pyramidata (Norwegian and Mediterranean), and 

 many dead shells of Cavollna trispinosa. These 

 latter w r ere very common in all the northern dredg- 

 ings, though we never saw a living specimen on the 

 surface. 



During the afternoon we took a series of inter- 

 mediate temperatures, at intervals of 50 fathoms, from 

 the bottom at 8(52 fathoms to the surface. 



On the 28th we dredged in 1207 fathoms (Station 

 43), with a bottom of ooze A large Fits as of a new 

 species (F. attenaatus, Jeffreys) was brought up alive, 

 with two or three Gephyrea, and an example each of 

 Ophiocten sericeum and Echinocucumis typica. We 

 again dredged on the 29th and 30th, gradually draw- 

 ing in towards the coast of Ireland in 805, 458, 180, 

 and 113 fathoms successively (Stations 44, 45). In 

 458 fathoms (Station 15) we procured a broken 

 example of JBrisinga endecacnemos, previously taken 

 by Mr. Jeffreys off Valentia, and a number of 

 interesting Mollusca ; and in 458 and 180 fathoms 

 (Stations 45 and 45a) an extraordinary abundance of 

 animal life, including many very interesting forms — 

 Dentalium abyssorum, Aporrhais serresianus, Solarium 



ii 2 



