REPORT ON THE DEEP-SEA FISHES. 57 



Melanocetus murrayi, n. sp. (PI. XI. fig. A). 



D. 1 I 13. A. 4. C. 9. P. 14. 



Extremely similar to Melanocetus johnsonii, but, singularly, there is no trace of 

 vomerine teeth, whilst there is no distinction between the two species as regards the 

 dentition of the jaws. The posterior angle of the mandible projects more and fonns a 

 salient point. The mouth is comparatively less wide, and the maxillary considerably 

 shorter, being about two-fifths of the total length, without caudal, whilst it is rather 

 more than one-half in the Madeiran species. Eye rudimentary. One cephalic spine, 

 which is shorter than the maxillary. The last dorsal ray is connected by a short and 

 delicate membrane with the caudal fin ; most of the caudal rays are bifid, the longest 

 shorter than the maxillary. Pectoral fin as much developed as in Melanocetus johnsonii. 

 Entirely black. 



Total length, ....... 44 lines. 



Length of mandible, . . . . . . 14 „ 



Length of maxillary, . . . . . . 12 „ 



Length of caudal fin, ...... lOi ,, 



Habitat. — Mid-Atlantic, Station 106; depth, 1850 fathoms. One specimen, 44 lines 

 long. 



Mid-Atlantic, Station 348; depth, 2450 fathoms. One specimen, 13 lines long. 



In the young specimen the dorsal filament is already of the same relative length as in 

 the old one. 



Linophryne, Collett. 

 This genus difiers from Melanocetus in possessing a long tentacle at the throat. 



Linophryne lucifer. 



Linophryne lucifer, Collett, Proc. Zool. See. Lend., 1886, p. 138, pi. xv. 

 D. 1 I 3. A. 2. C. 9. P. 14-15. 



A spinous projection above each orbit. Cephalic tentacle black, with a large ovate 

 bulb, the upper half of which is white ; gular tentacle much longer, terminating in two 

 tongue-like appendages, which are furnished on the upper edge with a row of round 

 white papillte. 



One specimen. If inch long, was found floating on the surface off Madeira, in 

 lat. 36° N., long. 20° W. 



(zool. CHALL. EXP. — PAUT LVH. — 1886.) Lll 8 



