104 
PROCEEDrmiS OF THE XATTONAL MUSEUM. 
VOL. XXIV. 
above. Fins du.sky, g-rowing darker toward the edges; caudal with 
a conspicuous, l)lack, oval spot al)out as large as eye on upper half; 
the spot surrounded by a lighter border. 
Described from a specimen from Wakanoura. Representatives from 
other localities show no important differences. 
The species may be recognized at once among Japanese gobies ])y 
the large, oval, black spot on the upper half of the caudal fin. 
Our collections include individuals from Tsuruga, Kobe, Nagasaki, 
Wakanoura, Hiroshima, and Onomichi. The species is generally 
common in Southern Japan and grows to a length of 1.50 millimeters. 
(;ro/\t>cr, many; vij/^xa, thread.) 
}[eitKiir('mciitx of I'lirncluiiiiriclitJiifs fin] ijiiciiiiis^. ' 
Length expressed in millimeters 
Depth expressed in hundredths of length 
Depth (if caudal peduncle , 
Length of head 
Leiigtli of snout 
LenKth of maxillary 
Widt h ( )f interorbital space 
Diameter of orbit 
Distance from snout to spinou.s dorsal 
Distance from snout to soft dorsal 
Height of longt'st di irsal .spines , 
Height of longest dorsal rays , 
Distance friHU snout to anal fin 
Heiglit of longest anal rays 
Length of caudal peduncle 
Length of caudal tin 
Length of (n'ctoral tin 
Length of ventral tin 
Nunil)er of <lorsal spines 
Number of dorsal rays 
Number of anal rays 
Number of scales in lateral series 
Number of scales in transverse series 
Naga.saki, 
Waki 
, Kii. 
Hizen. 
100 
90 
85 
95 
78 
20 
18 
19 
19 
21 
13 
12 
12 
11 
11 
•25 
25 
24 
24 
25 
(th 
6 
5i 
6 
5 
10 
10 
10 
10 
% 
3^ 
2 
3 
3 
•>i 
'ik 
^5 
7 
7 
1 
35 
35 
35 
33 
35 
53 
54 
52 
52 
53 
13 
12 
13 
12 
13 
18 
19 
19 
19 
18 
59 
59 
57 
66 
58 
16i 
19 
19 
18 
18 
23 
23 
22 
23 
24 
36i 
41 
44 
43 
38 
27 
29 
31 
30 
27 
18 
17 
18 
17 
17 
6 
6 
6 
6 

n 
11 
11 
11 
11 
10 
10 
10 
10 
10 
28 
28 
28 
28 
27 
9 
9 
9 
9 
9 
23. CHv^TURICHTHYS Richardson. 
Oiictnrichihijs Richardsox, Voyage Sulphur, 1844, ]). 5-5 {stigmaiias). 
Ambb/chreturicJithi/x Bleeker, Archives Neerl., 1874, p. 324 {hexcmcmna). 
Body moderatel}' elongate, covered with moderate-sized cycloid 
scales, which fall readih^; head broad, rounded in profile, the e3^es 
close together, the cheeks scaly; mouth moderate, oblique; the teeth 
pointed, medium; tongue truncate; isthmus narrow, the gill openings 
continued well forward below; lower jaw with 3 small ))arbels on 
either side. Dorsal fins long of 8 slender spines and 11 to 2,5 rays. 
Caudal more or less pointed, with shorter rays at l)ase above and 
below; pectorals pointed, without silky rays. 
S})ecies few, mostl}- Japanese. Large gobies of dull coloration, 
chiefly of the seas of Japan and China. 
(j«'/r?/, bristle; <n)pa, tail; /'j^?'?, fish, from iho short marginal rays 
of the caudal.) 
, rr. fliaiuriehthysi Dorsal rays VIlI-22; anal 19; scalcH 57-14; caxidal long and 
pointed; spinous dorsal with a large black spot xtigiiidtidK. 43 
((II. AmblychniuricJifJii/K. Dorsal rays VIII-15 to 17; anal 13 or 14; scales 35 to 40; 
caudal shorter. 
