THE CHISMOPNEA (CHIMAEROIDS). 87 
Brown with lighter spots on body and head, with a lighter streak along the 
base of the second dorsal and with another one above and two or three other 
similar ones below the lateral line on the tail between ventrals and caudal. 
A close ally if not a variety of the preceding. 
Japan. 
CHIMAERA PHANTASMA. 
Chimaera monstrosa SCHLEGEL, 1850, Poiss. Jap., p. 300, pl. 132. 
Chimaera phantasma JoRDAN and Snyper, 1900, Proc. U. S. Nat. Mus., 23, p. 338; 1904, cbid., 27, 
p. 223; Dean, 1904, Journ. Coll. Sci. Tokyo, 19, p. 3, pl. I, f. 3, 4. 
Head nearly one fourth of the length from snout to end of second dorsal, 
equal to two fifths of the length of the second dorsal base; equals more than 
the depth of the body, or to nearly four times the length of the orbit. First 
dorsal rather small, spine reaching the origin of the second dorsal. Height of 
second dorsal about equal to that of the orbit; upper margin not concave. 
Caudal filament more than twice as long as the head; caudal fins narrow, hardly 
one third of the length of the orbit in width. Anal fin narrow, small, distinetly 
separated from the subcaudal. © Pectorals wide, reaching behind the bases of 
the ventrals, hind margins slightly concave. Outer angles of the pectorals and 
the ventrals rather sharp. Claspers of male twice as long as the ventral fin; 
divisions extending more than half their length. Waves in the lateral line along 
the flank short and shallow. The supracaudal fin is a very little deeper but 
much shorter than the subeaudal; the latter being continued for a long distance 
below the filament. 
Greyish brown, somewhat streaked or blotched longitudinally on the flanks; 
with or without small spots or vermiculations of darker near the bases of the 
dorsals. Several streaks of darker on the caudal section. Lateral line dark. 
Sagami Bay, Japan. Alan Owston. 
CHIMAERA MITSUKURIL. 
Chimaera phantasma JORDAN and Fow er, 1903, Proe. U.S. Nat. Mus., 26, p. 669. 
Chimaera mitsukurti JonpAN and Snyper, 1904, Proc. U.S. Nat. Mus., 27, p. 234, f. 2; Dran, 1904, 
Journ. Coll. Sci. Tokyo, 19, p. 6, pl. 1, f. 1-2. 
Head approximating one fifth of the length from snout to end of second 
dorsal, little less than one third of the length of the base of the latter fin. Second 
dorsal not indented on the upper border. Pectorals reaching behind the bases 
of the ventrals. Anal not distinet. Caudal filament more than three times the 
