Yi THE CHISMOPNEA (CHIMAEROIDS). 
= 
shorter on a male, keeled in front, hind edges serrated. Indentation of the 
upper margin of the second dorsal deeper than that of C. colliei, dividing the fin 
into two distinet unequal sections of which the anterior is the shorter. No 
anal fin. Subcaudal slightly deeper and longer than the supracaudal; caudal 
filament rudimentary. Hind margins of ventrals slightly concave; outer 
edges of these fins longer on female, inner edge longer on male. Pectorals 
subfaleiform, twice as long as wide, hind margin indented, outer angle sharp. 
Clasper of male trifid, similar in shape to that of C. colliei, apparently bifid but 
having the second and third divisions free, not bound together by the skin. 
In other words the skin of the second division of the clasper is not fused around 
the distal end of the third division, though the two are closely connected with 
one another. Lateral line nearly straight along the flank; jugular section meet- 
ing the postorbital near the junction of the latter with the angular and the 
suborbital. Description taken from a female of 22 inches and an adult male 
of 20 inches. 
Colors resembling those of C. colliet but less red and more silver; spots of 
white are scattered on the sides much as in that species. 
In shape and coloration these specimens resemble others of C. colliet, but 
they are somewhat more elongate, have larger eyes, more falciform pectorals, 
divided second dorsals, and the clasper is completely trifid. 
Types No. 330, Mus. Comp. Zodl. 
Locality uncertain. 
CHIMAERA COLLIEI. 
Chimaera colliei BENNETT, 1839, Beechey’s Voy., Fishes, p. 71, pl. 23, f. 1-2; Grr., 1858, Pacific R. R. 
Rept., 10, p. 360; Dum., 1865, Elas., 689; Giinr., 1870, Cat., 8, p.350; Jorpan and Ginpert, 1883, 
Bull. 16 U.S. Nat. Mus., p. 55; Garm., 1904, Bull. M. C. Z., 41, p. 272; Dean, 1906, Chim. Fishes 
and Devel., pl. 1-11, figs. 
Hydrolagus collici Gru, 1862, Proc. Acad. Nat. Sci. Phil., p. 331 (name only); Jorpan and Evrrm., 
1896, Bull. 47 U.S. Nat. Mus., p. 95; Goopr and Bran, 1896, Oc. Ich., p. 32, pl. 10, f. 36. 
Tye rather large, two sevenths or less of the length of the head. Head nearly 
one fourth of the length from snout to supracaudal, little more than half the 
length of the second dorsal. Pectorals broad, not twice as long as wide; hind 
margin slightly convex near the outer angle. Outer ends of the ventrals rounded; 
claspers of male short, not reaching end of ventral fin; apparently bifid more 
than half their length, the cartilages being trifid but two of the three being 
bound together by the skin at their distal ends. Sub- and supracaudals about 
equal in height. Second dorsal nearly twice the length of the head, highest 
forward, continuous, but descending in the mid length to about one fourth of 
