86 THE CHISMOPNEA (CHIMAEROIDS). 
fins with darker outer margins. Varying much in individuals; sometimes plain 
on the back shading to silver-white or yellow below. 
Northern Atlantic, from the Mediterranean and Cuba to Norway and 
Iceland, descending to depths of 600 fathoms or more. 
CHIMAERA PURPURASCENS. 
Chimaera purpurascens JoRDAN and Snyper, 1904, Smith. Misc. Coll., 45, p. 235 (name and note of color) 
Chimaera jordani Tanaka, 1905, Journ. Coll. Sci. Tokyo, 20, p. 2, pl. 1, f. 1; 1911, Fishes of Japan, 1, 
pl. X, f. 30. 
Head one fifth of the length from the snout to the caudal fin, or nearly 
one third of the length of the second dorsal fin. Dorsal spine as long as the 
head, reaching when applied to the back behind the origin of the second dorsal. 
Base of first dorsal twice as long as the interdorsal space, which latter is traversed 
by a dermal fold. Anal separated by a notch from the subeaudal. Claspers 
of male trifid one third of the length, hardly longer than the ventral fin. Eye 
large, two sevenths of the head length. Subcaudal fin hardly as deep as the 
supracaudal fin. Lateral line irregular with few and weak undulations; jugu- 
lar branch joining the orbital near the junction of the latter with the angular 
and the suborbital branches. 
Dark brown, with light streaks lengthwise below the lateral line on the tail. 
Japan. 
CHIMAERA OWSTONI. 
Chimaera owstoni TANAKA, 1905, Journ. Coll. Sci. Tokyo, 20, p. 10, pl. I, f. 2,3; 1911, Fishes of Japan, 1, 
p: 18; pl. V, £27, 18. 
Head little more than one fifth of the length from the end of the snout to 
the caudals, and more than one third of the base of the second dorsal. Dorsal 
spine as long as the head, reaching beyond the origin of the second dorsal. 
Dorsals joined by a fold between them, its length less than that of the first 
dorsal base. Pectorals long, reaching little beyond the origin of the ventrals. 
Claspers of male short, trifid less than half their length, second branch smaller 
than the club-shaped first one, third branch styliform, pointed, crooked at the 
end. Anal separated from the subeaudal. A caudal filament. Upper outline 
of the second dorsal slightly concave near the middle of its length. Caudals 
subequal in depth. Lateral line rather irregular, but not wavy; jugular branch 
meeting the orbital near the junction of the latter with angular and suborbital. 
