BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 24. AFD. IV. N:0 9. 7 
The exterior of the young specimens from Beeren Eiland 
is described by Dr. OHLIN, on the label in the following way: 
»Ground colour yellowish white, belly silvery white, back 
grayish white with brown spots. Iris silvery white with 
cinnabar spot.» 
Gymnocanthus ventralis is known to be arctic and circum- 
polar, and recorded from Spitzbergen several times before. 
According to MALMGREN! it is most numerous on the West 
Coast of Spitzbergen from the Amsterdam Island to the Stor 
Fiord. The present collection proves this, and that towards 
the north it seems to be even more common than Cottus scor- 
pius which latter was not caught by the Swedish expedition 
of 1898 north of the Ice Fiord. 
3. Centridermichthys uncinatus (REINHARDT). 
1 specimen: Ice Fiord, North Fiord 78 27' N.. 15 20' E.; depth 175 m.; fine 
dark brown clay. 19/7 98. 
4 > between Beeren Eiland and Norway 733 N., 1830' E.: depth: 
410 m., gray clay; temperature +?” OC. 2/9 98. 
il > 36 m. SW from South Cape (Spitzbergen) 75 58' N., 13518 E.; 
depth: 350 m., gray clay: temperature +2,7” CO. 1/9 98. 
off Grey Hook (North Spitzbergen) 79 47' N., 14928 E.; depth: 
140 m., stones with red alge. ?5/& 98. 
ät > South from King Charles Land 77” 25' N., 27 28' E.; depth: 160 
m., yellowish brown clay; temperature — 1,7” C. ?3/6 98. 
do 
w 
Through this collection several contributions are given 
to the knowledge of this fish. Judging from the material 
collected by the Norwegian North Atlantic Expedition CoLLETT 
(1. c. p. 32) says: »The spawning season of this species is pro- 
bably in the months of July and August, the abdomen in 
several of the specimens obtained having been found distended 
with roe. One taken July 2nd, total length 69 mm., had 
about 32 ova in each ovary; these ova were of comparatively 
of the length of the head and in G-. pistilliger 9 84,8 24 of the same, but in 
G. ventralis from 89 to 105 xz. According to my measurements this per- 
centage is rather variable as it in the four large specimens varies from 85,1 4 
to I7,3 Zz and in the small ones from 88,3 4 to 95,6 z. But if the mean per- 
centage is taken it will be 89,6 2 for the larger and 91,1 2 for the smaller 
specimens and thus Smitt's calculation holds good and it will be seen that in 
this respect G-. pistilliger is more remote from the juvenile stage than G. 
ventralis is. N 
!' Om Spetsbergens fiskfauna, Öfvers. K. Vet.-Akad. Handl. 1864. 
