COPEPODA 



155 



like Farran's description and very characteristic; the segments 8^9 are 1-3 as long as segment 7, and 

 again 1-2 as long as 13; the segment 17, which is three times as long as the segment 14, is a little 

 longer than the segment 19, and 1-4 as long as 24 <^ 25. The basipodite III of the antennae has a single 

 well developed seta; the Ri I has 2 fairly long setae, and the Li of Ri II has at least 7 longer and 

 shorter setae. The exopodite is a little longer than the endopodite; its first segment is well developed 

 without any seta, and the second has a short terminal seta. The mandibulae have the teeth developed 

 in a curious way, as shown in Farran's fig. 3; the basipodite III possesses proximally a fairly long 

 somewhat curved seta and, medially, a short one; the Ri I has at least one seta, and the Ri II 8 

 powerful long setae, and more medially, a fairly long slender one. The maxillulae have in general 

 shape some similarity to Etichcele; in the Le were found only 6 well developed setae, of which the 

 third is the longest in several specimens, and not 7 as figured by Farran (fig. 5), as the proximal 

 was probably wanting; the Li I has only n setae, as S 12 14 on the posterior surface are missing; 

 corresponding to Li II III only a single lobe with 4 setae was found. The Basp. Ill has i seta, the 

 Ri I 2 and the Ri II <v III 3 strong setae. Three basal segments are easily recognized in this species; 

 the Basp. I is adorned with Li I, the Basp. II with Li II and Le I, and the Basp. Ill, which is well 

 articulated, has the two branches. The maxillae are like Farran's fig. 4 PI. Ill; the first basipodite 

 has the exterior margin distinctly concave in the middle; the Lob. I IV have posteriorly a distinct 

 spinotis area. The proportional length of the segments in the maxillipeds is 60, 90, 26; they are scarcely 

 different from those of V. oligarthra. 



The pes I has the Ri I II completely fused, and the Re I is only indicated by a medial incision 

 and a powerful Se; as shown in fig. 2 a, a glandular canal and pore was present in the exterior margin 

 of the second and third division; the pore in the former was covered by a spine-shaped mass, and 

 both pores were surrounded by numerous hairs. The pes //has the distinction between Re I II indicated 

 by a medial incision and a well developed lateral spine; the articular membrane is anteriorly repre- 

 sented by a faint line, which is not seen posteriorly. The unsegmented Ri has near the tip on the 

 anterior surface a minute pore (text-fig. 44 b). Near the base of Se Re II and Se 3 Re III but not 

 in Re I, wide glandular pores are found, in connection with big sacs with glandular cells, which are 

 placed proximally to the articular membranes between the Re I II and Re II III respectively. The 

 /.$/// differs from pes II by the distinct articular line between Ri II III; a distinct glandular pore 

 is found at the base of Se Re I; the pes IV is in main features like pes III, but the Basp. II has 

 comparatively few hairs along the inner margin. 



The epistoma is represented by a short protuberance, which is placed somewhat behind the 

 insertion of the antennulae; it is steep in front, and smoothly sloping behind, and appears quite smooth. 

 The labrum is rather prominent; on the anterior surface, somewhat in front of the free margin, a trans- 

 verse row of fairly long stiff hairs (fig. 2 b) is observed; and more laterally, partly covered by this, 

 an oblique row; and along the hinder margin the usual row of numerous somewhat curled hairs (fig. 2 e). 



The oral surface of the labruin (fig. 2 c) has the group i placed laterally, and consisting of 

 numerous short setae or granules; the group 2, which is well separated from this, and consists of 

 comparatively few longer setae, is closely followed by groups 3 4; the group 5 consists of more 

 numerous and comparatively longer setae. 



