82 Mr. R. Collett on a new Species of Motella. 
length of the head. Lateral line arched over the pectoral fin, 
the length of which is one third the height and the same as 
that of the caudal, which is rounded. Left ventral fin in line 
with the anal, but not continuous. Length of maxillary is 
contained twice and two thirds in length of head and two thirds 
that of snout. Orbits separated by a narrow slightly elevated 
ridge that overhangs the lower orbit. Dorsal fin commences 
in front of eye, and one half the orbital diameter from snout. 
Opercular margin entire, except a shallow notch in front of 
pectoral. Preeopercular limbs join at right angles. Cleft of 
mouth oblique; maxillaries extending to the anterior vertical 
of the uppereye. Every part covered with scales, the diameter 
of which is one third that of the profile, with the free margins 
ciliate. Teeth in a single row, on both jaws in equal number, 
there being six on each side above and below; none on the 
vomer. Lower jaw with a prominent gonyx. 
Colour yellowish white above, white beneath. 
Differs from P. scaphus, Forst., to which it is closely related, 
in the number of rays, and in the greater relative size of the 
head, and the strikingly large orbits. 
_ Dredged by H.M.8.-‘Challenger’ Expedition in 400 fathoms 
off Cape Farewell. 
XII.—On a new Motella from Norway. 
By Roperr Couiert. 
Motella septentrionalis, n. sp. 
2. D. 50-51. A. 41-43. P.15-16. V.7. C. 28-30. 
Body rather short; head large, depressed, contained four 
times in the total length (including caudal). Snout obtuse, 
with one barbel at each of the nostrils, and a row of eight 
shorter or rudimentary ones along the upper lip, one at the 
chin. Upper jaw considerably longer than the inferior. The 
maxillary extends far behind the posterior margin of the orbit 
(the central point of iris is rather nearer the extremity of the 
snout than the end of the maxillary). Teeth cardiform and 
of unequal size. The eyes are rather small and directed 
upwards ; the orbit is contained seven times and a half in the 
length of the head (in younger individuals six times). First 
dorsal short, its first ray short, only twice as long as the orbit. 
The vent is situated in the middle between the extremity of 
the snout and the end of the anal. The lateral line for the 
most part conspicuous, consisting of about eighteen large pores. 
