NO. 1244. GOBIOID FISHES OF JAPAN— JORDAN AND SXYDER. 67 
11. ABOMA Jordan and Starks. 
Aboma Jordan and Starks, Proc. Cal. Ac. ^ci., 1895, p. 497 {ffhenxtoma). 
Thi.s genus is very closely allied to Ctenogohhis, ditfering chietiy in 
the presence of 7 or S dorsal spines; head naked, rounded in profile, 
narrow and not depressed between eyes; month moderate, not very 
ol)lique, the chin usually not prominent; outer teeth somewhat 
enlarged; tongue not notched. Scales usually large, ctenoid, some- 
times rather small. Dorsals and anal short: no flaps on shoulder 
girdle; no silk-like ravs on pectoral. 
Species numerous, small in size and mottled in coloration, mostlv 
Japanese, three of them from the Avest coast of Mexico. 
{Aho))ia^ Spanish name of the small gobies in Mexico.) 
a. Scales large, 30 to 45 in longitudinal, 9 to 12 in transverse series; breast naked. 
h. Ventral fins dusky, with a Vjright yellow, broad median stripe; depth 4f in 
length; scales 36-10; coloration rather bright; caudal with zigzag bands 
above, plain below lactij)es. 18 
bh. Ventral fins plain; coloraticin rather oV)Scure; caudal spotted above, plain 
below. 
c. Scales large, 9 in transver.se series; depth 5f in length; a faint caudal spot. 
fsni^hiiiui'. 19 
r<\ Scales smaller, 12 in transver.se series; no caudal spot; first dorsal with a 
black spot with white before it : he})farard}ta. 20 
aa. Scales small, 15 t<< 20 in transverse series (prol)al)ly HO to 70 in Icmgitudinal 
series). . 
d. Scales in cross series 15; anal rays 10 or 11; caudal translucent, with fine 
dots brennigi. 21 
)l<l. Scales in cross series 20; anal rays 12 or 13; caudal with a median cross 
band always present . urotwnid. 22 
i8. ABOMA LACTIPES (Hilgendorf). 
Oobi^of litciipes Hilgp:xi)okf, Sitzber. Naturt. Freunde, 1S7S, p. 109, Tokyo; No. 
10650, Mus. Berlin. 
Ahdiiui Ifictipex Jordan and Snyder, Proc. I'. S. Nat. Mus., 1900, p. 372, Tokyo, 
Tonegawa. 
Head ;->t in length; depth 4f ; depth of caudal peduncle 10; eye 5i 
in head; snout ^2i: maxillary 2i; D. VIII-11; A. 11; P. IS; scales in 
lateral series 36. in transverse series 10. 
Body cylindi'ical anteriorly, sloping gradually to the rather deep 
caudal pe^luncle. Head large; snout long; blunt. Eyes small: situ- 
ated high up: nearer to tip of snout than to posterior edge of opercle 
a distance equal to one-half the diameter: directed almost laterally. 
Mouth almost horizontal; jaws equal; upper lip wide; maxillary con- 
cealed except at distal end; reaching a vertical passing midway l)etween 
anterior edge of orbit and pupil. Teeth simple: in a narrow band on 
each jaw; outer ones but little enlarged. Tongue rather broad; its 
anterior edge truncate or slightly rounded. Gill opening.s restricted 
to the sides; widtli of isthnuis a little less than lenoth of snout. Inner 
