THE SURF- FISHES OF JAPAN— JORDAN AND SINDO. 
359 
Those from Misaki, obtained in rather deeper water than the others, 
were distinctly of a copper}- red in lif e, with a redder line running later- 
alh' forming- the chord to the arc of the curved lateral line. These were 
locally called Aka-tcui ago (red surf -lish) . The majorit}- of these red spec- 
imens have their dorsal spines reduced to 7 or 8, but some have 9; the 
body is rather more roundish than in those from other localities, the 
tins duskier with a slender black bar running at the base of the dorsal 
and anal fins; the lips are dusky. We do not, however, regard them 
as forming a distinct species. One specimen from Hakata has the 
body and tins except the pectorals blackish duskj , with the spinous 
dorsal uncolored, and the body considerably thicker than in the others. 
Many specimens have a black spot at the pectoral axil, and the ventral 
tins are often black from root to end; a black bar running along the 
root of dorsal and anal tins; the vertical tins higher, the eyes larger 
and the head longer in 3-oung specimens than in the adult. All these 
pecidiaiities seem to depend upon the character of the water or of the 
bottom and are within the range of specitic variation. * 
(Xamed for Prof. C. J. Temminck, the associate of Professor 
Sc'hlegel.) 
Measureinents of Ditrema temmincki. 
Locality. 
Length in millimeters 
Head in body 
Depth 
Snout tadorsal 
Snout to anal 
Depth of caudal peduncle 
Snout. ...-. 
Eye 
Tip of snout to end of maxillary 
Width of interorbital space 
Length of dorsal fin 
Length of anal fin 
Height of longest dorsal spine . . 
Height of longest dorsal ray 
Height of longest anal spine 
Height of longest anal ray 
Length of pectoral fin 
Length of caudal fin 
Length of ventral fin 
Number of dorsal rays 
Number of anal rays 
Number of pectoral rays 
Scales above lateral line 
Scales on lateral line 
Scales below lateral line 
Nagasaki. 
Misaki. 
Tokyo. 
149 
105 
172 
28 
31 
29 
ibh 
45 
45 
39 
42 
40 
. 59 
59 
62 
13 
13 
14 
9 
9i 
9 
9 
9i 
8 
8 
7j 
8i 
9 
81 
9i 
51 
45 
49* 
27 
28 
27 
Si 
IQi 
9i 
Hi 
13 
17 
4i 
C 
6 
22i 
12 
15 
25 
25 
25 
29 
27 
30 
16 
17 
m 
X,20 
IX, 21 
X,20 
111,26 
111,26 
111,26 
1,19 
1,19 
1,19 
10 
11 
10 
/O 
71 to 74 
76 
19-20 
21 
19-20 
Hakodate. 
191 
29i 
47 
41 
64 
14 
10 
Sh 
8i 
9i 
501 
25 
8 
17 
5 
22i 
26 
30 
15 
X,21 
111,25 
1,19 
10 
77 
19-20 
