138 PROF. R. COLLETT ON A .  [Mar. 2, 
1. On a new Pediculate Fish from the Sea off Madeira. 
By Rosert Cotzerr, C.M.ZS. 
[Received February 12, 1886.] 
(Plate XV.) 
Fam. CERATIID. 
LINOPHRYNE, 0. gen. 
Head enormous ; the body slender, compressed, mouth oblique. 
Spinous dorsal reduced to a single cephalic tentacle, the basal part 
of which is erect, not procumbent. Teeth in the jaws, on the vomer, 
and the upper pharyngeals. Gill-openings exceedingly narrow, 
situated a little below the root of the pectorals. Soft dorsal and 
anal very short; ventrals none. Abdominal cavity forming a sac, 
suspended from ‘the trunk. Skin smooth; a long tentacle on the 
throat. 
LINOPHRYNE LUCIFER, Sp. noy. (Plate XV.) 
The head tetrahedral, with a supraorbital spine ; its length is to 
the total length as 1 to 2:7. Eyes small, situated high up on the 
side of the head. Teeth of the jaws uniserial, very long; 7 to 9 on 
each side in each jaw; one or two in front longer than the others ; 
all are movable inwards and covered with skin. Gill-openings 
narrower than the diameter of the eye. Length of the intermaxillary 
bone is contained three times in the total length. Cephalic tentacle 
thick, with a large bulb; the guttural tentacle long, with the end 
cleft and provided with small papille. Colour uniformly black, the 
top of the cephalic tentacle and the papille of the guttural tentacle 
white (phosphorescent ?). Total length of the single specimen 
49 millim. 
iD: lL; 2-D.3;-A. 2; P.14-15; C. 9: 
Habitat. One ‘specimen, total length 49 millim., from the sea off 
Madeira (36° N. lat., 20° W. long.), May 1877; preserved in the 
Zoological Museum at Christiania. 
Measurements. 
millim 
Total length to the end of the caudal fin .............. 49 
Length to the root of the caudal fin ...... 35 
Length of the head to the hind margin of the operculum. . 18 
35 to the end of its spine ba hE ra 22 
Length from the snout to the hinder margin of the eye. . 9 
Length to the edge of the distended abdominal sac ...... 39 
Length of intermaxillary ee CR A wih. ka os eis. eae 16 
Length offlawerqawig — opis cs ee sou ins vas vo ae ee 
Breadth of thetswergaw..)i05 02... juntas <5 22 eka 4°5 
The greatest depth of the head ...-.. 0.00.5 c0-- 6s-s 0s 19 
The depth of the head from the base of the orbital spine . 10 
