366 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
farther north. Our specimens are from Tokj'O, Wakanoura, Totomi 
Bay and Matsushima Bay, the last two dredged b}^ the U. S. Fish 
Commission steamer Albatross. 
This description is from a specimen obtained in Tokyo. All other 
specimens have a blackish gray color, especially that from Matsu- 
shima, with the ends of fins and filaments black or blackish. 
The chief difi'erences between L. litithm and L. setigerus are the fol- 
lowing-: In L. Utidon. the first dorsal spine is not longer than the 
second, the ventral fin is colored, the inside of the mouth is unmarked, 
the membranes in the dorsal and anal fins extend to the tips of the 
rays, the peritoneum is uncolored, the head is generalh" less than 2 in 
length, but never more, as is invariably the case in L. setigeyms, and 
the pectoral fins are slenderer. 
This species, with the preceding, is known as Anko; in some localities 
the male is called Klanko., or true Anko., the female Mizxiko (water 
creature). 
Q^iroz., plain-colored; ovkov^ gums; the species lacking the peculiar 
mouth markings of L. setigerus.) 
Measurements of LopMomus litulon. 
Locality. 
Length in millimeters 
Number of dorsal rays 
Number of caudal rays 
Number of-anal rays 
Number of pectoral rays 
Number of ventral ray's 
Head in hundredths of length 
Width of head 
Width of body close to gill opening 
Depth of caudal peduncle 
Length of tail 
Snout 
Length of maxillary 
Space between maxillaries 
Diameter of eye (transversely) 
Interorbital space ". 
Snout to the tip of humeral spine 
Distance between tips of humeral spine . 
Snout to first dorsal spine 
Height of first dorsal spine 
Snout to second dorsal spine 
Height of second <l<irsal spine 
Snout to third dorsal spine 
Height of third dorsal spine 
Snout to fourth dorsal spine 
Height of fourtli dorsal spine 
Snout to root of dorsal fin 
Length of Ijase of dorsal tin 
Height of dorsal ray 
Length of caudal fln 
Base of anal tin 
Height of anal fin 
Length of pectoral fin 
Length of ventral fin 
Ventral fin to vent 
Vent to anal fin 
Tokyo. 
192 
II-IV-9 
S 
8 
23 
5 
51 
51 
19 
5 
35 
15 
20 
8 
6. I 
13 
39 
35 
b\ 
15 
9 
20 
26 
19 
37i 
15 
62 
32 
18 
25 
27 
21i 
2U 
16 
43 
4 
Matsushima. 
266 
lI-IV-10 
8 
8 
23 
5 
49 
51 
17 
5 
38 
15 
20 
Ih 
13 
40 
33 
5 
19 
8i 
22i 
24 
14 
35 
14 
60 
Wakanoura. 
97 86 
II-IV-9 II-IV-9 
23 
6 
45 
54 
18 
5 
34 
15 
21 
7i 
8 
131 
39i 
32 
5 
12 
8i 
19 
25 
14 
38 
13 
60 
31 
23 
27 
