64 
PROCEEDINGH OF THE NATIONAL MUSEUM. 
VOL. XXIV. 
Head, except a small occipital area, naked; a large pore above and 
between the nostrils; 2 similar pores on interorbital area; a row of 3 
running backward from the eye; sides of head with rows of minute 
pores. Body covered with large, weakl}" ctenoid scales, the rough 
edges of which are hidden by epidermis; scales on nape and occipital 
area very small. 
Dorsal fins separate; spines slender, the first 5 evenly spaced; the 
interval between fifth and sixth twice that between two of the others; 
spinous dorsal, when depressed, reaching past insertion of soft dorsal. 
Anal inserted below second or third dorsal ray, the fin extending 
slightly farther posteriorly than the dorsal, neither reaching base of 
caudal. Caudal acutely rounded. Pectoral without filaments on upper 
edge. Ventrals free posteriorly, extending as far backward as do the 
pectorals. 
Color in spirits much darker aljove than ))elow, the sides with 5 nar- 
row, dark, longitudinal streaks; a median row of indistinct, large, 
dark spots, the one at base of ca'idal being most prominent; cheeks 
Fi(i. y. — Ctenogobius virgatulus. 
with 1 or 2 dark lines; opercle with a large dark blotch; scales of 
breast each with a sul)dued dusky spot. Spinous dorsal dusky, with 
a narrow longitudinal band, the posterior part widened, forming a 
distinct oval spot; soft dorsal dusky, each ray with 3 indistinct spots; 
caudal rays with small, dusky spots arranged in vertical rows; spots 
on lower fourth of fin very indistinct or absent; ventrals and anal 
dusky; pectoral dusky, with an elongate dark spot at upper part of 
base and a narrow dark dash on the lower edge. 
Type. — No. (5451, Leland Stanford Junior University Museum. Lo- 
cality, Misaki, Sagami, Japan. 
Many specimens from Misaki are lighter in color than the type, a 
highl}' colored male; on the lighter one the bands and spots are much 
more distinct. 
Individuals from Nagasaki have the color pattern in ever}" detail, 
as described a])ove, although it is much lighter and less distinct. 
The species is closely related to C. 2>fi'(u>ni. It may ])e distinguished 
l)y its smaller eyes and by the al)sence of a long, dark blotch on chin 
and throat. 
