178 BUSH 



139. Pomatostegus howerhanki Baird 1865, figures, + Has- 



well 1884. 



140. Sfirohranchus rostratus (Lamarck 18 18, as Vermilid) 



Morch 1863. 



141. Sfirobranchus morchi (Quatrefages 1865, as Cyjno- 



sptra, -f Haswell 1884). 



142. Spzrobranchus brachycera (Baird 1865, as Cymospzra, 



figures, + Haswell 1884). 



143. Pomatoceros elefhus Schmarda 1861, figures, 4- Has- 



well 1884, figures. 



144. Placostegus tcematus (Lamarck 18 18, as Vermilid) 



Morch 1863. 



145. Ditrypa strangulata Deshayes, figure, + Morch 1863. 



146. Sfirorbis tricostalis Lamarck 1818, + Morch 1863. 



147. Spirorbis lamellosus Lamarck 18 18, 4- Morch 1863. 



148. Sfirorbis incisus Morch 1863. 



NEW GENERA. 



The following genera, fifteen in number, are here proposed : 

 Paralaonome. 



Type, P, jafonica (Marenzeller 1884, as Laonome^ figures). 

 Metalaonome. 



Type, M, marice (Lo Bianco 1893, as Bis^ira^ figures). 



Dasychonopsis. 



Type, D, fallidus sp. nov. 



Parasabella. 



Type, P, media sp. nov. 



Aspeira. 



Type, A. modesta sp. nov. 



Pseudopotamilla. 



Type, P. reniformis (Leuckart 1849, Malmgren 1867, as 

 Potamilla, figures). 



Schizobranchia. 



Type, S, insignis sp. nov. 



Eudistylia. 



Type, JS. gigantea sp. nov. 



