54 THE VOYAGE OF H.M.S. CHALLENGER. 



Ceratias uranoscopus (PI. XI. fig. C). 



Ceratiag uranoscopus, Murray, in Wyv. Thomson, The Atlantic, vol. ii. p. G7. 

 Mancalias uranoscopun (Gill), Goode, Proc. U.8. Nat. Mus., vol. iii., 1881, p. 469. 



D. 1 I 3-4. A. 4. C. 8. P. 10. 



Body and head much compressed ; .skin finely granular, with scattered minute 

 .spinelets of equal size. Cleft of the mouth vertical. The upper end of the maxillary 

 with a projecting triangular spine, pointing upwards and forwards. Small pores are 

 scattered over the whole body. Eye rudimentary. The first dorsal spine extends to the 

 end of the caudal fin, its distal portion being attached to the rest by a joint. No second 

 dorsal spine between the pair of claviform tentacles. Gill -opening rather nearer to the 

 end of the snout than to the end of the caudal fin. Uniform black. 



Minute foramina or pores may be seen scattered over the body, together with extremely 

 fine and soft tentacles of a white colour. These tentacles are so perishable that the 

 slightest touch removes them, and they are preserved in our specimen only on some parts 

 of the body. The specimen is not well enough preserved to make out whether they 

 rise from the bottom or the circumference of the pore. I have noticed one, two, or 

 three tentacles attached to one pore. I cannot detect terminal pores on the caruncles, 

 although they are probabl}'' present. 



Habitat. — North Atlantic, Station 89; depth, 2400 fathoms. One specimen, 3 J 

 inches long. 



A much larger example (9.^ inches long) was obtained bj' the U.S. Fish Commission 

 on the south coast of New England, at a depth of 372 fathoms. It has not been 

 described, which is to be regretted, as in so large an example many points might be cleared 

 up which must remain obscure and uncertain in a small, indifferently ]ircscrved example, 

 like that of the Challenger Expedition. 



Ceratias shufeldti. 



Typhlopsaras shufeldti (Gill) Jordan, Catal. Fish. N. Amer., p. 138. 

 D. 1 I I 4. A. 4. C. 8. P. 4 or 5. 



Trunk elongate, back rectilinear. Cephalic .spine long, the I)asal .shaft reaching the 

 rlorsal fin, and the knob of its distal joint the caudal ; knol) pear-shaped, without 

 tentacles. A pair of dermal caruncles, with an intermediate singlr one at some distance 

 in advance of the dor.sal fin. Skin \ Vomerine teeth ? 



No information is given a.s regards the length of the specimen, which was obtained in 

 the Atlantic by tlie U.S. Fish Commission steamer "Albatross." 



