66 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
VOL. XXIV. 
Head, except 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 ej^e; sides of head with rows of minute pores. 
Body covered with large weakly' ctenoid scales; those of nape and 
occipital area very small. 
Dorsal tins separate; spines slender, the first 5 evenly spaced; the 
interval between tifth and sixth about double that between '1 of the 
others; spines when depressed reaching Ijeyond insertion of soft dor- 
sal. Anal inserted below second or third dorsal ray, the tin, when 
depressed, extending slighth" further posteriorly than the dorsal, both 
falling short of base of caudal. Caudal acutel}" rounded. Upper edge 
of pectoral without free filaments. Ventrals free posteriori}^, extend- 
ing al)out as far ])ackward as the pectorals. 
Body olivaceous, with dark markings; head blue in life. 
Scales on upper parts, with dusky margins; sides with 2 or 3 faintly 
outlined dark stripes; a median row of 4 or 5 indistinct dusky spots; 
a distinct, round, black spot about as large as e3'e at base of caudal; 
a small dark spot on lower part of opercle; branchiostegal region of 
throat dusky. Fins dusky, but without conspicuous markings. 
Southern ,Japan, generally common in the bays and inlets, in salt 
water: here described from specimens collected at Tsuruga, Echizen. 
Others are in the collection from Yokohama, Wakanoura, Aomori, 
Matsushima, Onomichi, Kobe, Owari Bay, and from Kawatana. 
This species very closely resembles Ctenogohius virgatuhis. It differs 
in having much larger e^'es, an oblong black blotch on ])ranchiostegal 
region, and in having the general color of body luuch lighter. 
Me(isurt')in'nts of Ctenogobivs pfaumi. 
Tsuruga, Echizen. 
Nagasaki, Hizen. 
Length in millimeters 
Dejith expressed in hundredths of length 
Depth of caudal peduncle 
Length of head 
Length of snout 
Length of maxillary 
AVidtli of interorbital space 
Diameter of orbit 
Distance from snout to spinous dorsal 
Distance from snout to soft dorsal 
Height of longest dorsal spines 
Height of longest dor.sal rays 
Distance from snout to anal tin ". . . 
Height of longest anal rays 
Length of caudal peduncle 
Length < >f caudal tin 
Lengtii of pectoral tin 
Lens til of ventral tin 
Numljcr (if dorsal spines 
Number of dorsal rays a 
Number of anal rays a 
Numl>er of pectoral rays 
Numlter of scales in lateral series 
Number of scales in transverse series 
56 
54 
19 
19 
9 
10 
•26 
25i 
7 
6 
10 
n 
s 
35 
34 
55 
52 
16 
14 
14 
19 
60 
56 
Hi 
18- 
20 
19 
26 
27 
25 
. 24 
20 
19 
6 
6 
11 
11 
10 
11 
16 
17 
25 
25 
« 
9 
8 
35 
53 
15 
17i 
56i 
18 
19 
29 
26 
22 
6 
11 
11 
16 
25 
9 
a The last dorsal and anal rays are cleft to the base. 
