REPOUT ON THE DEEP-SEA FISHES. 19 



Setarches, Johnsou. 

 Setarches Jidjiensis, n. sp. (PI. I. fig. C).^ 



D. 10 I T^j. A. |. P. 23. 



The lieiglit of the Iwdy is oue-third of the total length (without caudal); the 

 length of the head two-fifths. Head scaleless, without prominent spines on the vertex 

 and with parallel ridges ; interorbital space flat, as wide as the eye, the diameter 

 of which is two-ninths of the length of the head and two-thirds of that of the snout ; 

 upper jaw overlapping the lower, maxillary extending to below the middle of the 

 eye ; very narrow bands of villiform teeth in the jaws on the vomer and palatine 

 bones. The largest spines of the head are three at the angle of the prseoper- 

 culum ; smaller ones are distributed on the prjeorbital, the lower prteopercular margin, 

 and the operculum. The fourth dorsal spine is the longest, two-fifths of the length of 

 the head ; the third anal spine is longer than the second. Pectoral extending to the anal 

 fin. Body covered with minute cycloid scales. Lateral line -tt-ide. Body irregularly 

 mottled with brown. 



Habitat. — Off Matuku, Fiji Islands, Station 173 ; depth, 315 fathoms. One specimen, 

 3 in. long. 



Only one species, represented by a single example from Madeira, was previously 

 known of this genus, which is evidently a doep-sea modification of Sehastes ; the Fiji 

 species so much resembles the one from Madeira as to leave no doubt whatever with 

 regard to their natural affinities. They are fishes inhabiting moderate depths, and I 

 should say that they are not likely to descend below 500 fathoms. 



Since the above lines were written, a third species has been described by Goode,'^ 

 under the name of Setarches imrmatus. Specimens were obtained off the southern coast 

 of New England and in lat. 34° N., at depths of 120 and 178 fathoms. They are young, 

 only 52 and 53 mm. long, possess only ten dorsal spines, small cycloid scales, and a deep 

 body, the height of which is three-eighths of its length. 



Bathysehastes. 



Bathysehastes, Steindachner uiul Duderlein, Denkschr. d. k. Akad. d. "VViss. Wien, 1884, 

 xlix. p. 207. 



This genus is evidently closely allied to Setarches and Lioscorpius, with either of 

 which it may have to be united ; it has been characterised thus : — 



' This specimen was accidentally destroyed by the artist to whom it had been entrusted for the purpose of being 

 drawn. The figure was finished )jefore the accident happened, but coukl not be compared by myself with the 

 specimen. 



"- Proc. U.S. Nat. Mus., 1881, p. 480. 



