160 



Messrs. Carpenter and Jeffreys on [Dec. 8, 



0*4 inch in diameter, with a slight central prominence ; for these proved 

 on subsequent examination to contain an entirely new type of Actinozoon, 

 extraordinarily flattened in form, and entirely destitute of tentacles. Dr. 

 Carpenter, by whom this curious organism will be described, has assigned 

 to it the name of Ammodiscus Lindahli. 



22. July 30th. Sounded and dredged at two stations on our way to 

 Cadiz in 304 and 280 fathoms (Stations 28, 28a). At the first of 

 these stations Flabellum distinctum and a new species of Garyophyllia 

 occurred. At the latter station we got the same undescribed species of 

 Pholadomya, being the second species known in a recent or living state ; 

 the other is extremely rare, and West Indian. "With the Pholadomya 

 were Trochus crispulus and Odostomia plicatula (Sicilian fossils), and Ac- 

 tceon exilis, besides undescribed species of Poromya, Mitra, and Mar- 

 ginella. Anchored off Cadiz, near H.M.S. 'Cruizer;' where we had 

 at first some difficulty in being allowed to land, in consequence of our 

 not being provided with a bill of health, and there being no surgeon on 

 board. 



23. Left Cadiz on Tuesday, 2nd xlugust, and steamed west, so as to 

 get on the seaward side of the provoking cable. Dredged in 227 and 386 

 fathoms (Stations 29, 30). There was an admixture of northern and 

 southern species, including a fragment of Fusus antiquus, var. carinata ; 

 and the Ammodiscus here also presented itself, with a test composed of 

 coarser sand-grains than before, and frequently including Foraminifera. 



24. Aug. 3rd. Dredged at three more Stations (31, 32, 33), in 477, 

 651, and 554 fathoms, across the entrance to the Straits of Gibraltar, and 

 towards the Morocco coast ; and we shifted our ground at night. The 

 Fauna was northern, but scanty ; the bottom being stiff clay, and nearly 

 unproductive. Undescribed species of Cioniscus and Bulla were among the 

 Mollusca ; a remarkable Sponge, eighteen inches long, which Prof. Wy ville 

 Thomson considers the type of a new genus allied to Esperia (Ohon- 

 drocladia virgata, Wyv. Th. MS.), another new and exquisitely graceful 

 Sponge of the Holtenia group, and provisionally named by him Phero- 

 nema 1 velatum, and Aphrocallistes Bocagei; two new species of a compound 

 stony Coral (Ccenocyathus) ; and a few Crustaceans and Annelids were 

 taken. Part of a large Ribbonfish (Regalecus gladius) was caught float- 

 ing on the surface of the sea, the remainder having been apparently 

 bitten off and devoured by a Shark or Swordfish. 



25. Aug. 4th. Dredged again off the Straits and on the coast of Africa 

 in from 414 to 72 fathoms (Station 34). In the greater depths was the 

 same stiff and nearly azoic clay ; and in the lesser depths were broken 

 and dead shells of southern species. The Fauna in the former was chiefly 

 northern, and comprised Rissoa turgida (Norwegian) and Holtenia Car- 

 penteri. Capt. Spratt suggests that the clayey bottom may have been 

 formed by continual deposits from the great and muddy rivers Guadal- 

 quiver and Guadiana. Such deposits would to a considerable extent inter- 



