COPEPODA 355 



Fig. 8. Chirudina parvispina Farran. 

 Fig. 8 a. fc?. The 2 last segments of the exopodite of the left pes V; x 77. 



Fig. 9. Euchirella bitumida n. sp. 

 Fig. 9 a. f $. The abdomen etc. in dorsal view ; x 24. 



gb. f$. The abdomen seen from the left side; x 24. 



9 c. f $. The genital somite seen from beneath ; x 24. 

 gd. f$. The right maxilla in post, view; x 117. 



96. f.. The labrum in oral view (anterior portion); x 200. 

 9 f. f $. The lamina labialis; x 117. 



gg. f?. The area labialis; 77. 



Plate VI. 



Fig. i. Chirudina notacantha G. O. Sars. 

 Fig. i a. f$. Labrum; x 147. 



i b. f$. Labium; x 147. 



Fig. 2. Valdiviella insignis Farran. 

 Fig. 2 a. f$. Pes I sin.; outer margin of second and third outer segment in anterior view; x 77. 



2 b. f$. Anterior surface of the labrum; x 77. 

 2 c. f $. Oral surface of the labrum ; x 77. 



2 d. f$. Lamina labialis and serrula 6-dentata; x 77. 



2 e. f$. Labial lobes etc.; x 77. 



Fig. 3. Euchcete norvegica Boeck. 

 Fig. 3 a. f .. Oral surface of the labrum; x 147. 



3 b. f$. Lamina labialis; x 147. 



3 c. f .. Labial lobe; x 147. 



3d. fc?. Pes V sin.; second and third outer segment; x 77. 

 36. fcT. The oral surrounding in ventral view; x 147. 



3 f. Y (Stage II). Maxilla sin. ; x 77. 



Fig. 4. Euchcete tonsa Giesbrecht. 

 Fig. 4 a. f$. Labrum in oral view; x 147. 



4b. fc?. Pes V sin.; second and third outer segment; x 77. 



Fig. 5. Euchcete glacialis H. J. Hansen. 

 Fig. 5 a. f .. Lamina labialis and serrula 6-dentata; x 147. 



5 b. f$. Labial lobe in ventral view; x 77. 



50. f C?. Maxillula sin. ; x 77. 



5d. fc?. Pes V sin.; second and third outer segment; x 77. 



Fig. 6. Euchcete Farrani n. sp. 

 Fig. 6 a. f?. Oral surface of the labrum; x 147. 



Fig. 7. Euchcete Sarsi Farran. 

 Fig. 7 a. f .. Labrum in anterior surface; x 57. 



7b. f<?. Pes V sin.; second and third outer segment; x 77. 



