86 M. SASAKI. 
Table I : Hotnru-ikd Caiij^/U zvith Fnknhc-umi at Night. 
Total number of specimens 
Number 
of males 
Ratio of 
males to females 
Locality 
Date 
I 
circa 10,500 (calculated from 
the \veit;lit 2S2 lb, reckoning; 
one piece as 0.43 oz) 
132 
I : 78.8 
Namerikawa 
April 25 
II 
circa 5,333 
26 
I : 204.1 
do. 
April 30 
III 
282 
I 
I : 281 
do. 
May 4 
IVO 
circa 12,326 
(calculated from the weight.) 
10 
I : 1,231.6 
do. 
May 28 
V-) 
circa 15,550 
(calculated from the weight.) 
19 
I : 817.4 
do. 
May 29 
The above table shows clearly that the male becomes rarer as the season 
advances. 
Table II : Hotaru-iJca Gatliard zcitfi a Drag-net during the Dayt 'uiie 
at a Depth of 100 or a few more Fathoms. 
Total number 
of specimens 
Number of 
males 
Ratio of 
males to females 
Date 
I 
3 
I 
I : 2 
April 24 
II 
653 
3 
I : 216.7 
May 2 
III 
IV 
85 
3 
I : 42.5 
May 2 
52 
I 
I : 51 
May 3 
Table III : Motarii'iUa Obtained from the Stomachs of Thei'agra 
cli filcogranima ( Pallas )^'^ 
Number of 
fish 
Total number 
of Hoiarii-iJia 
Number of 
males 
Ratio of 
males to females 
Locality ] Date 
I 
10 
5 
0 
0 : I 
Namerikawa . ., 
market ^P"^ '9 
II 
30 
6 
0 
0 : 6 
Off Ikuji April 23 
III 
30 
7 
I 
I : 6 
Namerikawa . ., 
, April 30 
market ^ 
1) ; 2) found out by Mr. S, Matsuno. 
3) Thii net is used for fishing for Nigisu (Argentina semffasciata Kishinoue). 
4) Tlieragra chalcogramma is caught with the line from the depth of 100 or a few more 
fathoms and in the sea 3 or more miles off the coast. 
