COTTOIDS. 
167 
TRIGLOPS PINGELII. 
Fig. 51. 
Body posteriorly elongated. Length of the head about 27 % of that of the body". Preopercular spines compa- 
ratively small. Spines on the top of the head small, eventually disappearing with age. Snout in old specimens 
longer, in young specimens shorter, than the longitudinal diameter of the eye, which varies with increasing age 
from 30 to 26 % of the length of the head. Least, breadth of the interorbital space b in old specimens greater, 
in young specimens slightly less, than the least depth of the tail c . Length of the maxillary bones less than 12 % 
of the length of the body or than 37 % of that of the base of the anal fin, which is more titan 28 % of the 
length of the body or than 90 % of the base of the second dorsal fin , the last measuring from 30 to 33 % of the 
length of the body. Length of the lower jaw less than 16 % of that of the body. Base of the pectoral fins 
vertical and fairly straight, the length of these fins measured from the upper corner of their insertion being about, 
21 % of the length of the body, or slightly less than when measured from the lower corner, in which case it is 
22 %; the lower and thicker rays free for a relatively great, part, of their length. Head superiorly and laterally, 
and the bach above the lateral line, in adult specimens, covered with a verrucose skin, which is firmly united to 
the subjacent bones, and shagreened on the head. The breast {the ventral side in front of the ventral fins ) with 
the skin gathered into transverse folds, like those belonging to the sides of the body below the lettered line, but the ven- 
tral side from the ventral fins to the vent smooth. Anterior part of the lateral line curved downwards. Colo- 
ration essentially the same as that of the preceding species , but the dark spots on the sides are blacker in full- 
grown specimens, and the belly is purer white and even lustrous. 
Fig- 
51. Triglops Pingelii , 9? natural size. From a depth of 30 fathoms in Behring Strait; July, 1879; Vega Expedition. 
R. hr. 6 d ; D. 10— 1 1 *23 — 25/; A. 22—25/; P. 18*; V. >/,; 
C. /c + O+.r; Lin. lot. 49 h . 
Syn. Triglops Pingelii, Reinh., Dansk. Vid. Selsk. Math. Naturv. 
Afli., Deel 7, pp. 114 et 118; Kroy., Naturh. Tidskr. 
Kbhvn, ser. 2, vol. 1, p. 261; In., Voy. Scand ., Lap. 
(Gaimard), tab. I, fig. 1 ; Malmgr., Of vers. Vet.-Akad. Forh. 
1864, p. 508; Esm., Forh. Naturf. Mode Christ. 1868, p. 
520: Coll., Forh. Vid. Selsk. Christ. 1874, Tillaegsh., p. 
36; Ltkn, Vid., Meddel. Naturh. For. Kbhvn 1876, p. 378; 
Gthr, Proc. Zool. Soc. Lond. 1877, p. 476; Coll., Norsk. 
Nordli. Exp., Zool., Fislee, p. 38, tab. 1, fig. 9 et 10; 
Lillj., Sv., Norg. Fisk. vol. I, p. 168; Bean., Bull. U. S. 
Nat. Mus., No. 15, p. 128; Jord., Gilb., ibid. No. 16, p. 
713. 
Triglops pleurostictus, Cope, Proc. Acad. Nat. Sc. Phil. 1865, 
p. 81. 
a In a specimen 37 '/o mm. m length the length of the head = 27'2 % of that of the body; in two specimens 154 mm. in length 
27-3 %. 
6 In old specimens about 36 % of the longitudinal diameter of the eye, in young 39 %. 
c In old specimens the latter is as much as 2'1 % of the length of the body, in young as much as 3'4 / or even 4'2 %. During 
youth this species thus corresponds, in this respect, to the older stages of the three preceding sjaecies. 
d Sometimes 7, according to Ivr0yer and Lutken. 
e Sometimes 12 or 13, according to Kegyer, Lutken and Collett. 
/ Sometimes 26, according to Collett. In a specimen from the Cattegat there are only 20 rays in the second dorsal fin. 
* 17 — 19, according to Lutken; 17 — 21, according to Collett. 
h 45 — 49, according to Collett. 
