Vout.2] Hsterly—Copepoda of the San Diego Region. eS 
1. Calanus finmarchicus Gunner. 
Monoculus finmarchicus Gunner, 1765, p. 175, figs. 20-30. 
Calanus perspicaz Dana, 1852, p. 1071; 1855, pl. 74, figs. la-c. 
Cetochilus helgolandicus Claus, 1863, p. 171, pl. 26, figs. 2-9. 
Calanus finmarchicus Brady, 1883, p. 32, pl. 1, figs. 1-10. 
Calanus finmarchicus Giesbrecht, 1892, pp. 89, 218, pl. 6, fig. 19; 
pl. 7, figs. 32, 33; pl. 8 figs: 3, 15, 21, 31, 335; 1898) p. 14. 
Calanus finmarchicus Wheeler, 1899, p. 164, fig. 1. 
—) 
Fig. 1.—Calanus finmarchicus. (a) Female, lateral, X18. (b) Outer 
ramus of right fifth foot of male X195. (c) Left fifth foot 
of male 140. (d) Outer ramus of third foot of male 
«140. St., terminal bristle. Se., outer marginal bristle. 
(e) Basals of fifth foot of female 195. 
2 Head not fused with thorax, front and lateral portions of 
fifth thoracic segment rounded, fureal bristles symmetrical. An- 
terior antennae extending about to end of abdomen, aesthetasks 
not doubled on any joint. Distal margin of second basal of 
second to fourth feet witha tooth; the proximal spine of the 
outer margin of terminal joint of outer ramus divides the margin 
in these pairs (respectively) into portions as 2:1, 2:1, 3:1. 
