NO. 1244. aOBIOID FISHES OF JAPAN— JORDAN AND SNYDER. 
93 
Measurements of Pterogobiufi daimio. 
Length in millimeter.^ 
Depth expre.Ksefi in hundredths of length. 
Depth of caudal peduncle 
Length of lioad 
Length ( if .sin mt 
Width of interorbital space 
Diameter of orbit 
Distance from snout to spinous dorsal 
Distance from .snout to soft dorsal 
Height of longest dorsal s|iines 
Height of longest dorsal rays 
Distance from snout to anal fin 
Height of longest anal rays 
Length of caudal iieduncic 
Length of caudal t\n 
Length of pectoral tin 
Length of ventral fin 
Number of dorsal spines '. 
Number of dorsal rays 
Number of di>r.sal rays 
Number of dor.sal rays 
Number of scales in lateral series 
Number of scales in transver.se series 
84 
81 
81 
S.S 
SI 
20 
25 
20 
20 
20 
12i 
13 
14 
12i 
12.L 
26 
28 
28 
28 
261 
9 
10 
10 
10 

fH 
6i 
7 
■ C4 
6 
6 
6 
6 
. 1) 
I'l 
34 
35 
37 
31 
31 
52 
55 
54 
55 
.53 
39 
30 
32 
23 
m 
21 
11 
20 
13 
17 
59 
58 
59 
62 
.58 
15 
12 
Kii 
13 
15 
14i 
15 
16 
16 
15 
25 
22i 
27 
22 
25 
21 
21 
23 
21 
21 
15 
13 
15 
13 
13 
8 
8 
8 
8 
8 
22 
23 
20 
22 
22 
22 
20 
19 
21 
21 
21 
22 
21 
- 22 
22 
77 
89 
78 
79 
80 
28 
26 
26 
27 
\ 
36. PTEROGOBIUS ZACALLES Jordan and Snyder, new species. 
Head 4^ in length; depth 5|; depth of caudal peduncle 1<>; eye 3^ 
in head; snout 3i; maxillary 2i; D. VIIl-26; A. 26; P. 22; scales in 
lateral series 96, in transverse series 33. 
Body somewhat cylindrical, becoming more compressed near caudal 
tin; contours of body sloping slowly to caudal peduncle, which is little 
more than one-half the depth of body. Head large; not so deep or 
broad as body. Snout short and blunt, its length equal to diauieter 
of eye. Interorbital space broad, concave. Eyes large; directed 
almost laterally. Mouth olilique; maxillary concealed b}" the tleshy 
lip; extending to a vertical passing between pupil and anterior edge of 
orbit. Teeth simple, in 2 series; an outer row of enlarged ones; an 
inner, narrow band of minute teeth; lower jaw with a small, curved 
canine on each side. Width of isthmus equal to length of snout. 
No papilhe on inner edge of shoulder girdle. Gill-rakers slender. 
Anterior nostril with an elevated rim or tube. Chin without barbels. 
Head with minute scales on nape, upper edge of opercle, and on 
preopercle; those on preopercle extending downward considerably 
])elow the level of eye; other parts of head naked. Body closely cov- 
ered with small, cycloid scales; a small patch of ctenoid scales in region 
of pectoral. 
Dorsals separate, though the membrane posterior to last spine 
extends to insertion of soft dorsal. Fifth or sixth dorsal spine longest; 
the fin when depressed reaching a little beyond insertion of soft dor- 
sal. Second dorsal very long; its base contained about 2^ times in 
length. Anal inserted below base of third or fourth dorsal ray; when 
depressed it extends slightly beyond dorsal posteriorly, both reaching 
the first basal rays of caudal. Caudal acuteh^ rounded; small upper 
and lower basal rays extending a short distance forward on caudal 
peduncle. Pectorals sharph^ rounded; 3 or -i upper ra3^s with small 
filaments. Ventrals free posteriorly. 
