1. BlTENTACULATUS. 2.Subsp. RDFOVBNi 



Extending uot quite to 

 middle between head 

 and mantle. Median 



15, 8 post - pallial, 



Wanting 

 Granular 



Close to perinotum 

 Infront,insidemautle- 

 5-7 denticles 

 Present 



rrosimal 



rapilla; 



Extending to middle 

 between head and 

 mantle. Median 



"With anterior and 

 posterior groove, 

 open on outer side 



About 14, of which 

 10 are post-pallial ; 

 some bifurcate 



Pre- and post-anal 



Dense small papillie 



Close to perinotum 



In£ront,iDsidemautle- 



7 denticles 



Present 

 None 



Proximal [ 

 Tapilla; 



3. Marworeus. 



Extending to near the 

 middle between bend 

 and mantle. Shal- 

 low median groove 



Closed in front, open 

 post-laterally 



Granular, with 2-3 

 small papilla; in a 

 side-field 



Close to perinotum 



Present, bulbose and 

 glomerate gland 



Extending to middle 

 between bead and 

 mantle. Median 



Perfectly closed by 



Minutely granular ; 

 2 rows of large 

 papillie in front, 

 4 behind mantle- 



Asymmetric denticle 



"Wanting 



Present, bulbose ai 

 glomerate gland 



Distal 



Papilla; 



Extending to middle 

 between head and 

 mantle. Median 



Perfectly closed by 



Present 



Large papilla;, 6 

 a post-pallial sid 

 field 



Near perinotum 



Proximal 

 PapiUce 



Extending to mantle- 

 area. Shallow me- 

 dian groove 



Triangulai", but open 



8-20, 9-10 post- 

 pallial ; shallow 



In front, inside mantle- 



Wanting 



Prostate and glomerate 



Distal 

 Papilla; 



Extending to middle 

 between head and 

 mantle- area. Me- 

 dian groove 



Perfectly enclosed by 

 grooves 



Small papillie and 

 about & larger ones 

 in a side-field 



Close to ]ieriuotum 

 In front, uisidemautle- 



Wanting 



Present, ibulbose and 

 glomeijate gland 



Proximal 



Papiihe 



8. SCHAUINSLANDI. 



Extending to middle 

 bet^veeu head and 

 mantle - area. No 

 median groove 



Perfectly 



Near perinotum 



Wanting 



Distal 

 Papilla^ 



Extending to middle 

 between head and 

 mautle-area. Me- 



Perfectly enclosed by 



If), S-9 post-pallial, 

 some bifurcating 



Extending to mantle- 

 area ; shallow me- 

 dian grooA"e 



Perfectly enclosed by 



15, S post - pallial, 

 mostly bifurcate 



Granular, with nn- 

 meroussmall papilla 



Close to mantle-area 



Infi'out, inside mantle- 



3 cusps, 5 or 7 denti- 

 cles 



Present ' 



Wanting 



Proximal 

 Papillie 



11. Verrucosus. 



Extending to middle 

 between head and 

 mantle - area. Me- 

 dian groove 



Transverse, perfectly 

 enclosed by grooves 



?0, 10 post-pallial 



Small, pointed, dense 

 papillae 



Inside mantle-area, on 

 right outer side 



In front, inside mantle 



Present 

 Wanting 



Proximal 

 Papilla;, iu 



