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310 University of California Publications in Zoology {(Vou.9 
The distribution of this species as shown by the closing nets 
is indicated in tables 35 and 36 which follow. It is evident 
from both tables that the animals are most abundant during 
the day in deep water (table 35, column E, lines 3 and 4; 
table 36, column D, lines 3 and 4). Neither the horizontal nor 
vertical nets took the animals above 100 fathoms during the 
day, though some were taken there during the night. If allow- 
ance is made for differences in the action of the two sorts of 
nets, inspection of the tables under consideration shows that 
the organisms leave the deep water during the night and are 
found at much higher levels by night than by day. So far 
as this evidence goes, it indicates that there is an upward move- 
ment at night. 
TABLE 35 
Distribution of Euchirella pulchra as shown by hauls with the horizontal 
closing nets, day and night hauls compared 
A B Cc D E F 
Total Successful Total Total Animals per Haul 
Depth hauls hauls hours animals - 10-hr. haul frequency 
Day Night Day Night Day Night Day Night Day Night Day Night 
4-35 29 27, 0 2 8.8 7.8 0 4 0 5 Or 
50-75 12 8 0 0 Sha} -8i(1) 0 0 0 0 0 0 
100-160 Se al! 2 1 2.7 4.0 12 2 41 5 25 9 
200-250 9 3 3 0 3:2 1:6 13 0 40 0 33 0 
300-350 7 0 2 0 3.3 0.0 2 0 6 0 28 0 
TABLE 36 
Distribution of Buchirella pulchra as shown by hauls with the vertical 
closing nets, day and night hauls compared 
A B C D 
Total Successful Total Animals per Haul 
Depth hauls hauls animals 100-f. haul frequency 
Day Night Day Night Day Night Day Night Day Night 
1. 40-0 106 100 0 0 0 0 0 0 0 0 
2. 100-40 39 «9-334 0 2 One als 0 21 0 6 
oO 200-100 12 7 3 1 12 8 12 8 25 14 
4 250-200 6 1 6 0 47 0 94 0 100 
5. 200-250 4 1 3 0 24 0 48 0 75 
