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



Ceratias uranoscopus (PL XL fig. C). 



Ceratias uranoscopus, Murray, in Wyv. Thomson, The Atlantic, vol. ii. p. 67. 

 Mancalias uranoscoptis (Gill), Goode, Proc. U.S. 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 granuLir, with scattered minute 

 spiuelets 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 probably present. 



Habitat. — North Atlantic, Station 89; dej)th, 2400 fathoms. One .specimen, 3^ 

 inches long. 



A much larger example (9g inches long) was obtained by 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, indiff"erently preserved example, 

 like that of the Challenger Expedition. 



Ceratias shu/eldti. 



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 basal shaft reaching the 

 dorsal fin, and the knob of its distal joint the caudal ; knob pear-shaped, without 

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

 in advance of the dorsal fin. Skin ? Vomerine teeth 1 



No information is given as regards the length of the specimen, which was obtained in 

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



