162 MYA. GAPER. Class VI. 



the gaping end. Three inches and a half 

 broad; two inches long in the middle. Tab. 

 xlv. 



PICTO- M. p'lctorum. Lin. Syst. 11 12. Li7i. Tr. viii. 38. 



^^^' Gm. Li?i. 3218. Faun. Siiec. Mya ovalls. Mont. Test. Br. 



No. 219. 34. 



List. Angl. Jpp. tal. l.Jig.4. 



M. with an oval brittle shell. The primary 

 hinge tooth on one valve is crenulated, and 

 received into a corresponding double tooth on 

 the other valve. Breadth from three to four 

 inches ; length two. Inhabits rivers. Tab. xlvi. 



Mi- 



Used to put water colors in; whence the 

 name. Otters feed on this and the other fresh- 

 water shells. 



9. OVATA. Lin. Tr. viii. 3g. M. ovalis. Mont. Test. Br. 34. 



* M. with an ovate shell, narrower at one end ; 

 hinge tooth the same as in the last, but near 

 the posterior end ; length one inch and three 

 quarters, breadth tliree inches and a quarter. 



Found wdth the 31. pictorum in the rivers 

 Oiize, in Yorkshire ; Avon, Somersetmire ; and 

 the NezD River, near London. 



