Siboga-Expeditic. LII. J. J. Tesch, Thecosomata and Gymnosomata. 



17. 





\ 



%^ 



1 





— Jl 



__/>c 



Y' 



f 



v ,s 





h 



A^\\\ 



148 



v 



,? 164. 



155. 



J ^ 



c:> 



J. J. Tesch. del. 



i>. J. Mulder, Impr. 



