talpa Linn. . . . ..,; . . 



testudinaria Linn. . 

 tigris Linn. .. 

 vitellus Linn 

 Daplmella 



fragilis articulata Pils, 

 limneiformis Kiener. . 



distorta Linn 

 laciniata Lain 

 Deifitaliuiu 



aciculurn Gould. ... . 



complexum Dall. . 



hexagonum Gould. 



hungerfordi Pils and 

 Sharp 



lubricatum Sow* ... . 



octangulatum Donov. .. 



.semipolitum J>rod and 

 Sozv. ^ 



vernedei Hanley. .. 



vveinkauffi Dkr. ... .. 



yokohamense Wat ton. 

 Distorsio 



anus Linn. ...... .. 



cancellinus Roiscy. .. 

 i>labella 



scapula Mart 



