54 CONTRinUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
one oneacli side. Istbmus moderate; gill-rakers small. Oviparous, 
the egg-cases long, elliptical, with silky hlaments. Genera 2.{Chima!ra 
and Callorhynehus ) ; species about 5. Abounding in the seas of temper- 
ate and cold regions. 
{Clnmceridce Giiutlier, viii, 349-352.) 
. Snout Boft.uotteimiuatmg in acntauconsnal.-, tail not bent upward..Cm>u;Ri, 40. 
45 .— CIISM^KA Linua'us. 
Bat-Jishes. 
(Lin#=ons, Mut. Kogit. Ad. Fiid. i,»3l Syst.Nat.: typo Ctimo,-™ mottfroM L.) 
Ileatl somewhat comiii'esseil, the snout bluiitish, in-otiutlmg, es y, 
not armed at til) with ail aiipeiidage. Eyes veiy large, lateral. Teeth 
rather strong. Ups thickish, the lower with a freuiim. Lateral hue 
simple ou the body, but forking anteriorly, forming several series of 
mucous tubes on the head. Male with a club-shaped, cartilaginous hook 
on the head, above the snout. This hook is curved forward and down- 
ward, and is armed at its tip with d|||irved spines. Its tip tits into a 
depression in front of the eyes. Gill-opening small. Pectorals mod- 
erate. Veutrals rather large, with large bitid or tritid claspers in the 
male Male also with rough appendages at the base of the ventra s, 
protruding from a sheath of skin. First dorsal triangular, preceded by 
a strong spine which is grooved behind and serrated on its edges. Sec- 
ond dorsal and caudal tius low, often more or less notched. Tail ex- 
tending in the line of the axis of the body, sometimes produced in a 
hlament. Skin smooth. Fishes of singular appearance ; mostly of the 
northern seas ; not valued for food. {Xim Chimara, a fabulous moil- 
ster, with the head of a lion, body of a goat, and tad of a serpent.) 
a. Claspers iu the male trifid. (Chinmra.) 
■S'!. C. B»SMml>ea Gill. , r, 
“A Chimmra with the snout acutely produced ; the ante-orbital flexiii 
of the suborbital line extending little above the level of the inferior 
maruiu of the orbit; the dorsals close together; the dorsal spine with 
its anterior surface rounded; the veutrals triangular and pointed ; the 
pectorals extending to the outer axil of the veutrals ; and the color uni- 
formly plumbeous.” ( Om.) Atlantic coast from Cape Cod northward; 
in deep water. 
(Gill, Proc. Philos. Soc. Washington, Dec. 22, 1877.) 
aa. Claspers in the male bifid. (Hy drolagus* Gill.) — 
■'^^i;^o^Ac. NaL Sci. PhTlaa862, 331 : type Chm(sra coUiei. {v6o>p, water ; Xaybg, 
hare ; from the form of the lips and teeth.) 
