76 PROCEEDIXGS OF THE NATIONAL MUSEUM. vol.xxiv. 
bands; tongue emarginate; sides of head naked; no barbels; eyes well 
separated; isthmus very narrow, the gill opening continued forward 
below. Scales verv small, cycloid or weakly ctenoid; dorsal tins short, 
the tirst of 6 slender spines; ventrals moderate, not adnate; caudal 
short. 
Gobies of moderate size abounding in the rivers of Japan. This 
genus ditl'ers from C'ff^/tor/ohh(S in the large mouth, notched tongue, 
wide g'ill openings, and very small scales. 
Not having seen the type of Chamogohhis, Ave are not quite sure of 
its identity with Gymnogohius. 
[XOiivGo, yawn; Gohius.) 
a. Dorsal rays VI-9; anal 9; scales small; ocellate spots aljout the vent. 
(iiiniiJarh. 25. 
aci'. Dorsal rays VI-12; anal 12; scales 70; body and fins tlnely dotted, the caudal 
with zigza.tr vertical bands macroynatliDS. 26. 
25. CH-(ENOGOBIUS ANNULARIS Gill. 
Chwnugoh'ms ((imularis Gill, Ann. Lye. Nat. Hist. X. Y., 1859, p. 12, Hakodate. 
Gohius annularis Guxther, Cat. Fish., Ill, p. 65; after Gill. 
Head 4 in length; eye 4 in head; D. YI-9; A. 8. 
Body cylindrical anteriorly; compressed posteriorly. Head l)roader 
than deep. Eye located anteriorly; 4 in head; directed oldiquely. 
Interorbital space three-fifths diameter of eye. Mouth somewhat 
oblique; jaws equal. Scales small cycloid. Color brownish; dotted 
above with blackish; several ocellate spots about the vent; second dor- 
.^al with 8 bands. (Gill.) 
Hakodate, island of Hokkaido. Not seen l)y us. 
{AiiJddaris, having rings.) 
26. CHiENOGOBIUS MACROGNATHOS (Bleeker). 
GuJrius macrog)i(ithos Bleeker, Act. Soc. Sci. Indo-Nederl., VI, Jajjan, \>. 83, ]il. i, 
fig. 1, Rivers of Jeddo near Tokyo. 
Gobiofi07na )iKtrrognaf}i(iii GvyTKER, Cat. Fish., IH, 1861, p. 86, after Bleeker. 
ChcVnogohiux /luicrognntlios Jord.\x and Snyder, Proc. V. S. Nat. !Mus., 1900, p. 
372, Tokyo, Lake Biwa. 
Head 3| in length; depth -if; depth of caudal peduncle 2| in head; 
eye 6; snout 8; maxillary 1^; D. VI-12; A. 11; P. 20; scales in lat- 
eral series TO, in transvei'se series 20. 
Body thickset, rather cylindrical anteriorly; caudal pedimcle deep, 
compressed. Head l)road. its dorsal contour concave in reg'ion of 
e^^es; snout long, pointed. Eyes small, directed oV)liquely upward: 
space between eyes equal to 1^ times their diameter. ^Nlouth very 
large, oblique; lips rather l)road; lower jaw projecting beyond the 
upper. Maxillary exposed posteriorly, extending to a vertical through 
posterior edge of pupil, varying in length in diti'erent individuals. 
