PLATE XII. 



Fisr. ■!(■). Strehlacantha eircumtexta (Jørg.). 



!.'■. The same specimen as fig. 46 a (pl. XI), in another position; optical section, ■'""/i- 

 h. •'°7i- From the same locality, 

 i. The same, in optical section. 



1. Young- specimen, *^7i. The Vest Fiord I, 'V, 1899, 0—180 m. 

 k. The same, in optical section. 

 ,, -±7. Campylacnntha dndojylwra Jørg. n. sp., ""^Vi- The Tys Fiord I, -'/s 1899, 0—700 m. In this figure, and in the following 

 of species of the group NasseUaria. the letters have the same signification as in tlie corresponding description given on pp. 

 122—140: A is the apical main spine, D the dorsal one, Lj. the right lateral, Lj the left lateral main spine, V the ventral 

 sagittal spine. 



a. Oblique lateral view. The secondary lateral spines are not seen. 

 I). Oblique view, where one of these secondary lateral spines is distinctly seen. 

 c. Dorsal view, showing both these secondary spines. 



