JORDAN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 305 
Family MACROURIDA. 
358. Coryphenoides bona-nox sp. nov. (Plate XX XVIII, figs. 1 & la). 
The type is a single large example from Sagami Bay, three hundred milli- 
meters long, No. 6462 Carnegie Museum Catalog of Fishes. 
Head 4 in length without caudal; depth 5 (1.2 in head); snout 3.6 in head; eye 
4; maxillary 2.4; D. II, 9, 84; A. 78; P. 19; scales 125, between first dorsal spine and 
lateral line 8. 
Snout slightly longer than eye, firm in texture, especially at apex and lateral 
angles; maxillary reaching almost to below posterior margin of eye; profile of head 
evenly arched from dorsal, save slight flat area above eyes; interorbital space nearly 
as wide as eye, flat; pre-orbital convex, forming a low, rounded ridge with side of 
snout, not, however, sharply dividing head into upper and lower parts; snout 
projecting over premaxillaries a distance equal to two-thirds diameter of eye; 
teeth in narrow bands in both jaws; two or three series of small, rather blunt teeth 
anteriorly, dwindling to a single one posteriorly, outer teeth not enlarged; mandi- 
bular barbel half diameter of eye; first branchial arch with fold of membrane crossing 
it, attaching it to opercular wall; anterior gill-slit two-thirds of diameter of eye in 
length; five gill-rakers, tubercle-like; anus as far behind ventral base as postorbital 
length of head. 
Dorsal inserted over pectoral base, which is over that of ventrals; second spine 
not filamentous, its length contained twice in head, its lower half smooth, its upper 
half with six or seven coarse spinules; second dorsal inserted behind first, a distance 
equal to length of base of latter and before anus; first ray of second dorsal 3.5 in 
base of first; anal inserted under fifth ray of second dorsal, anus immediately 
preceding; ventrals filamentous, longest ray 1.75 in head, reaching anus; pectorals 
1.75 in head, not filamentous. 
Seales hard to the touch, with six to eight strong radiating ridges, their spinules 
closely imbricate and each closely applied to that following, the last spinule pro- 
jecting beyond scale-border in each ridge; scales on suborbital and snout with greatly 
thickened, bony ridges, frequently but one or two in number; scales present every- 
where on head and body save lips and throat; no scaleless area between ventrals. 
Color uniformly dark brown; all fins very dark. 
The dentition and scales of this species distinguish it from previously known 
forms. 
The senior author has studied the fishes of America and of the world for over 
forty years. His attention is now turning from Ichthyology and Taxonomy to 
larger but less charming studies in the relations of nations. This is, no doubt, the 
