88 NEW FISHES FROM PACIFIC COAST — GILBERT. 



the iucliicled space gently concave, not pit-like. luterorbital space 

 very narrow, slightly concave posteriorly, with a median ridge in 

 front, very strongly expanding over front of eye. Interorbital width 

 two-sevenths of pupil. Eyes very large, equaling snout, 3f in head. 

 Mouth large, extending beyond vertical from pupil, 2\ in head. Teeth 

 in rather narrow bands in jaws and on vomer and palatines. 



Preopercular spine rather small, in the single specimen known, bifid 

 at tip and with two strong antler-like processes directed upwards. The 

 number of these latter varies in all known species, and is probably nor- 

 mally greater than two in this species. Below this, a weak spinous pro- 

 jection directed backwards, and two stronger ones downwards and for- 

 wards. A spinous point at lower angle of subopercle, none on occiput, 

 shoulder, or opercle. Branchiostegal membranes and gill rakers as 

 usual. 



Head long, 2| in length. D. X-16; A. 14. Lat. 1. 39. L. 5i inches. 



Armature of sides as usual, the dorsal series of plates unusually well 

 developed, extending from opposite second dorsal spine to beyond 

 second dorsal, where the series becomes single, those of the two sides 

 closely approximated. No scattered plates behind pectorals. An 

 elongate, simple, supraorbital tlap, a filament in connection with nasal 

 spine, two on occipital ridge, and one on maxillary ; a few filaments on 

 lilates of lateral line. None of the dorsal spines elevated ; pectorals 

 reaching slightly beyond origin of anal. 



Color: As in I. tenuis, but the light spots on upper parts of body 

 not elongate, and not dark margined. No conspicuous dark bar below 

 orbit. The anal fin is translucent in our specimen, a female. 



A single specimen from Station 2935, in 124 fathoms. 



Radulinus gen. nov. {Cottidcv). 



Spinous dorsal short, the soft dorsal and anal very long. Branch- 

 iostegal membranes broadly united, posteriorly free from isthmus. No 

 slit behind last gill. Broad bands of cardiform teeth on jaws, a single 

 series on vomer, none on palatines. Preopercle with two short, simple 

 spines. Ventrals, I, 3. Body very slender. Sides armed with a 

 series of large, keeled, spinous plates along lateral line. Similar 

 plates on head. 



Type, Radulinus asprelliis sp. nov. 



48. Radulinus asprellus sp. nov. 



Body very elongate, the greatest depth at occiput, 8i to 9J in length- 

 IJ in width of head. Body subquadrate in cross- section, the upper 

 angles being formed by the keel of lateral plates, tapering gently to 

 the very slender fiat caudal peduncle, everywhere as wide as, or wider 

 than, deep. Mouth small, reaching front of pupil, 23 in head. Eyes 

 large, closely approximated, the interorbital space very narrow, not 

 grooved, less than one-fourth pupil ; orbit 22 to 2f in head. 



