NO. 12G1. JAPANESE PEDICULA TE FISHES— JORDAN AND SINDO. 377 
from lower jaw to axil; still another extending- backward from snout 
and maxillary to a point behind eye, when it ceases, uniting with a 
vertical line which extends from the lateral line to the lower line; these 
lines thus inclose a quadrate area on the cheek. Grill opening small, 
well ]>(>hind pectoral under front of soft dorsal. Deep seas. 
[XocvvaB^ one who gapes). 
g. CHAUNAX FIMBRIATUS Hilgendorf. 
ChauncLv fimhriatus Hilgendorf, Gesellsch. Xaturf. Freunde, 1879, p. 80; off Tokyo. 
Chaunax pictus Ishikawa, Prel. Cat., 1897, p. 37; Japan (not of Lowe). 
Head measured to the anterior edge of gill opening. 1^ in length, 
excluding caudal tin; 2 in total length; depth 2f in body; Si in total 
leng-th; snout 6^ in head; eye 2 in snout. Head wider than deep. 
Rostral spine short, nearly equal to eye. Gill opening below lifth or 
sixth soft rays of dorsal. 
D. I-I-I-il; A. 6; C. S; P. 14; V. 4. Mouth vertical, the end of 
maxillary not hidden. Length of maxillary 3| in head. Posterior 
part of spinous dorsal of one spine hidden in a fold of skin. Mucous 
channel chain-like; extending from tip of snout above eye to a point 
])ehind eye along supraorbital edge, then downward, connecting with 
lateral line which is a))ruptly ))ent above anal fin; branch extending 
})ackwai'd from middle oi maxillary below eye; a similar groove from 
lower jaw backward to upper base of pectoral tin. Series of pores 
below eye connected by a vertical series of pores to base of lateral 
line; these pores on cheek surrounding a quadrangular patch of skin. 
Spinules simple, rather high. 
Color, in spirits, uniform pale pinkish yellow; the largest specimens 
dirty gi"ay- Skin semitransparent on belly; very loose. 
Coast of Japan, in rather deep water, here described from a speci- 
men lo inches long, from Sagami Bay. Many smaller specimens were 
dredged in Suruga Bay by the United States Fish Commission steamer 
Alhatros)^, and two m(.)re in Sagami Ba}'. 
{Fhrnhriatus^ fringed). 
Family III. OGCOCEPHALID^. 
THE BAT FISHES. 
Head very broad and depressed, the snout more or less elevated, 
the trunk short and slender. Mouth not large, subterminal or infe- 
rior, the lower jaw included; teeth villiform or cardiform. Gill 
openings ver^^ small, above and behind the axils of the pectoral fins. 
Body and head covered with bony tu))ercles or spines. Spinous 
dorsal reduced to a small rostral tentacle which is retractile into a 
cavity under a prominent process in the forehead; in one genus the 
rostral tentacle is obsolete; soft tin well developed, its base strongly 
