Remarks 



Although only a single specimen was found, 

 I believe that its characters are sufficiently dis- 

 tinct to consider it as a member of a valid 

 species. The present specimen, in general shape 

 of the body, appears to be related to E. plana 

 Mori, 1937, redescribed by Tanaka (1958). The 

 obvious difference in the location of the genital 

 swelling, however, prevents it from being re- 

 ferred to that species. 



The only specimen was accidentally de- 

 stroyed. 



FAMILY PHAENNIDAE 



Phaenna spinifera Claus, 1863 

 Occurrence 



Sta. 3. lOadult females, 1.84 to 2.11 mm.; 



1 adult male, 1.94 mm. 

 Sta. 5. 5 adult females, 1.91 to 2.40 mm. 

 Sta. 7. 5 adult females, 2.02 to 2.11 mm. 



Remarks 



This species can readily be recognized by 

 the nearly rounded body in dorsal aspect. In 

 details the present specimens are in full agree- 

 ment with the figures given by Giesbrecht 

 (1892). 



FAMIL-i SCOLECITHRICIDAE 



Lophothrix latipes (T. Scott, 1894) 

 (Plate 8, figs. 4-8) 



Occurrence 



Sta. 3. 1 adult female, 3.06 mm. 



Sta. 5. 9 adult females, 3.03 to 3.16 mm. 



Sta. 7. 1 adult female, 3.23 mm. 



Remarks 



This species can be recognized by the follow- 

 ing characters : The head has a long, low crest 

 and two large ocular lenticels that are clearly 

 visible in stained specimens (figs. 4 and 5). 

 The rostrum consists of a thickened, incised 

 basal portion, which has two fine rostral fila- 

 ments (fig. 6). The posterolateral corner of the 

 metasome (fig. 7) is produced into a point, the 

 tip of which in dorsal or ventral view curves 

 inward and reaches to about the middle of the 

 genital .segment. The fifth leg (fig. 8) is uni- 

 ramous and 4-segmented ; it is considerably 



554 



dilated toward the distal end and has 3 spines 

 on the apex. The inner spine is the longest. 



Scolecithnx danae (Lubbock, 1856) 



Occurrence 



Sta. 3. 3 fifth copepodid females, 1.50 to 

 1.55 mm.; 



2 adult males, 2.07 to 2.10 mm. 

 Sta. 5. 8 adult females, 2.01 to 2.17 mm. ; 



6 adult males, 2.11 to 2.17 mm. 

 Sta. 7. 4 adult females, 2.14 to 2.17 mm. ; 



1 adult male, 2.11 mm. 



Remarks 



The female of this species can readily be 

 distinguished by her very robust body and by 

 the genital segment, which has a ventral pro- 

 jection in the form of a shovel. Gie.sbrecht 

 (1892) and Ro.se (1942) have described and 

 figured this species in detail. 



Scolecithnx bradyi Giesbrecht, 1888 



Occurrence 



Sta. 3. 1 adult female, 1.22 mm. 

 Sta. 5. 2 adult females, 1.32 mm.; 



1 adult male, 1.51 mm. 

 Sta. 7. 5 adult females, 1.32 to 1.38 mm. 

 Sta. 9. 1 adult female, 1.40 mm. 



Remarks 



The a.symmetrical last metasomal segment 

 and the extremely short urosome identify the 

 female of this species and the structure of the 

 fifth pair of legs identifies the male. Figures 

 of these characters have been given by Grice 

 (1962). 



Scolecithricella minor (Brady, 1883) 

 (Plate 8, figs. 9-12) 



Occurrence 



Sta. 16. 1 adult female, 1.42 mm. 

 Remarks 



The uro.some of the female has a character- 

 istic shape ; it is markedly narrow as compared 

 with its robust prosome (figs. 9 and 10). The 

 posterolateral margin of the metasome in lat- 

 eral view is triangularly produced into a blunt 

 tip, which reaches the middle of the genital 

 .segment. The first exopodal segment of the sec- 



U.S. FISH AND WILDLIFE SERVICE 



