A40 
opercular; lower or ventral series as 6 on isthmus, 10 abdominals before 
vcntrals of which at 2 at least before pectoral origin, 4 between ventral and 
anal, 17 from above front of anal to caudal base* 
D* 1,, 13, third ray 2 2/3 in total head length; adipose fin 3; A* 15, 
fifth ray 5; caudal i 3/4 (?), damaged, slightly emarginate behind; least 
depth of cavidal peduncle 2 3/5; pectoral 1 l/5; ventral 2 l/3* 
Back brown, with 2 narrow triangular brown points invading silvery white 
of side and extending at least to lateral line or level of lower pupil edge* 
JL _ 
Iris gray* Under su.rfs.ces of body with grayish about photophores* Fins 
• r 
whitish* 
Japan. Closely related to Polyipnus spinosus , differing in the dark tri- 
* 
angles of the back extending down lower or to the lateral line. The occipital 
spines al e 6sj short, not extending over l/4 to soft dorsal origin* In Polyipnus 
spinosus I find them variably extended much further or even quite to spine 
cat front of dorsal* 
51451 U.S.N.P. Sagani Bay, Japan* Albatross Station 3698* Length 
58 (?) mm., caudal broken. Type. 
!! 
Polyipnus soinosus Gunther 
Polyipnus spinosus GUNTHER, Rep. Voy. Challenger, vol*22, 1887, p.170, pl*51, 
fig.B. Between Philippines and Borneo in 250 fatJoms, II* Lat* 6 0 47 T 
E* Long. 122 28 1 . - ALCOCK, Ann. Mag. Nat. Hist., ser.6, vol*4, 1889, 
p.398 (Bay of Bengal; between north and south Sentinel Islands; In 
220 to 240 fathoms); ser*6, vol.8, 1891, p.126 (Station 115, in 188 to 
220 fathoms)* - GOODE and BEAN, Oceanic Iehth., 1895, p*128, ( not pi* 
39. fig*143) (reference). - ALC0CK, Journ* Asiatic Soc. Bengal, vol.65. 
