314 
PACIFIC SCIENCE, Vol. XII, October, 1958 
TABLE 1 
Abundance of Plankton Constituents by Haul 
A = abundant, 5 per cent or more by number; C = common, 1-5 per cent by number; 
S = scarce, less than 1 per cent by number 
Plankton Haul and Date 
Cyanophyta: 
Trichodesmium erythraeum . . . . 
Chrysophyta: 
Coscinodiscus sp 
Protozoa: 
Foraminifera sp 
Radiolaria sp 
Coelenterata: 
Anthozoa sp. (sea anemone) 
Scyphozoa sp 
Siphonophora sp 
Ctenophora: 
Brachiopoda: 
Lingula sp. larva 
Echinodermata: 
Ophiuroidea sp. larva 
young adult . . . 
Echinoidea sp. larva 
Chaetognatha: 
Sagitta sp 
Sagitta enflata 
Sagitta neglect a 
Sagitta regularis 
Mollusca: 
Heteropoda 
sp. larva 
Atlanta sp 
Pteropoda 
sp. 
Creseis virgula 
Gastropoda 
sp. larva 
Natica sp. larva 
Annelida: 
sp. larva 
Arthropoda: 
Copepoda sp 
Arcartia sp 
Candacia ethiopica 
Centropages calanius 
Copilia mirabilis 
Corycaeus sp 
Euchaeta marina 
Labidocera sp 
Labidocera laevidentata . . . 
Macrosetella gracilis 
Neocalanus gracilis 
Onceae sp 
Arthropoda: 
Pontellina plumata 
Pontellopsis sp 
April 4 Nov. 10 
1 2 3 4 5 6 7 8 
S 
C 
s s s 
s 
SASA S A A A 
S S A S 
S A A 
S S S S S 
c 
s 
A A A A A A A A 
S S A 
S 
S S S S 
S 
s s s s s 
s s 
s s s s 
s s s 
s 
Nov. 13 
10 11 12 
s s 
A A C 
C 
C A C 
Dec. 26 
13 14 15 16 
S S S 
S A 
S S A 
c c 
A A A S 
Dec. 29 
17 18 19 20 21 
c c c s 
s s 
s s 
s 
c c c c 
s 
c c 
c s 
c s 
s s s 
c s 
s s s 
s s 
s 
s 
s s 
s 
s 
s 
s 
s 
s 
s 
s 
S A 
s s s 
s 
s 
s 
s s s s 
s s s s 
s s 
s 
s 
s 
n n 
