— II — 



i52°,55^ E. ; 5o«,33' N., i53«,4o^ E. ; 5o^4r N., i55^i8' E. ; 

 Bay of Murakami, Isl. Paramushiru. 



2. Eucalanus oculanus, sp. nov. 



(Plate 4, tigs. 1-14) ' ■ ' 



The liead completely fused with fii^st thoracic segment. 

 The fourth and fifth thoracic segments distinctly separated. 

 The last thoracic segment with rounded extremities. The 

 rostrum well defined and prolonged into two comparatively 

 sharp points. The antennae 24 jointed, extending beyond the 

 end of the furca by three joints. The mouth organs and the 

 swimming feet of a structure similian to the other members 

 of this genus ; the fifth pair of feet wanting in female ; in 

 male present, consisting of one-jointed cxopodite with terminal 

 setae attached to a two-jointed basipodite. The following 

 characteristics separate this from the other species of this 

 genus. 



1. The head possess a pair of oblong lense-liked eyes. 



2. Carapace of the cephalothoracic segments is covered 

 with numerous fine short hairs. 



3. The abdomen consists of two joints in female and three 

 joints in male. 



Length of body 3.2 mm. in female, 2.8 — 3.o mm. in tnale. 

 Loc. — 37°, 35' N., 144^,40' E. (Off the cape Kinkazan). 



3. Euchaeta japonica, sp. nov. 



(Plate I, fig. 14; PI. 2, figs. 5-10 ; PI. 3, figs. 1-7) 



Female. — Form of anterior division of body, seen dor- 

 sally : oblong fusiform in outline, greatest width slightly 

 greater than i /3 of the length, anterior extremity about equal 

 to the posterior. Head faintly defined from ist. thoraxsegment, 

 rostral ledge veiy slightly prominent. 



Lateral lobes of last thoraxsegment somewhat prolonged 

 exhibiting at the tip a small nodiform pi^ojection ; on the 

 ventral ledge almost no hairs ; the dorsal clothed with com- 

 paratively long and thick hairs. 



(384) 



