320 University of California Publications in Zoology |Vou.9 
-_ TABLE 49 
Distribution of Undeuchaeta bispinosa 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 3 0 3 0 8 
50-75 12 8 0 1 3.3 3.0 0 13 0 43 0 12 
100-160 Sj) abil 0 0 2.7 4.0 0 0 0 0 0 0 
200-250 9 3 4 0 See 6 12 0 7 0 44 0 
300-550 7 0 4 0 3.07 0:0 8 0 23. 0 57 0 
The vertical closing hauls are dealt with in table 50 which 
follows. The results are practically the same as for the horizontal 
closing hauls (preceding table) and need no further comment. 
TABLE 50 
Distribution of Undeuchaeta bispinosa as shown by hauls with the 
vertical closing nets, day and night hauls compared 
A B D E 
Total Successful Total Animals per Haul 
Depth hauls hauls animals 100-f. haul frequency 
Day Night Day Night Day Night Day Night Day Night 
te 40-0 106 100 0 2 0 2 0 5 0 2 
2. 100-40 39 34+ 0 5 0 8 0 13 0 14 
3. 200-100 12 7 1 2 1 2 1 2 8 28 
4, 250-200 6 i 3 0 44 0 88 0 50 0 
5. 3800-250 4 i 3 0 29 0 58 0 25 0 
The evidence of all the nets is indicative of an upward move- 
ment of the animals at night. 
DistTRIBUTION OF Euchaeta tonsa, Euchirella galeata, Gaetanus 
unicornis, Pleuromamma xiphias, Scolecithrix 
frontalis AND S. magna 
These six species were not taken at the surface in any of the 
hauls. For that reason I have considered them together. Table 
51 shows the range of each of the species, but in the case of the 
vertical closing nets it is to be understood that ‘“‘range’’ means 
