PULMONATA. 1/9 



II. CocHLEOPHORA. Body more or less spiral, prominent on 

 the {middle generally) dipper surface of the foot, and 

 covered with a more or less spiral shell sometimes partly 

 hidden by the refiexed part of the produced edge of the 

 mantle. 



a. Body and mouth of the shell depressed, being broader from 

 side to side than long from front to back, that is to sou, in 

 the direction of the axis of the spiral shell. 



Tribe 3. PELTELLINA. 



Animal elongate, slug-like. Body subcentral, dorsal. Mantle 

 enclosed, and the size of the shell in front, produced behind, 

 and reflected over the back of the shell. Shell flat, ear- 

 shaped, thin. 



1. PELTELLA. 



Animal elongate, slug-like, not capable of being withdrawn 

 into the shield. Body elongate, ending in an elongated prism 

 behind, without any posterior pore. Shell oblong, flat, more or 

 less spiral, very thin. 



Parmacellus, Ferussac, Tab. Syst. 10. 24. 96"; Hist. Moll. 



Parmacella A, Blainv. Man. Malac. 463. 



Parmacella, sp., Philippi, Handb. Conch. 240. 



Peltella, Van Beneden 4" Robb, Guerin Mag. Zool. 1836, t. 75. 



Pectella, Gray, P. Z. Soc. 1847, 170 (misprint). 



Ferussac's character of the genus Parmacellus is taken from 

 P. palliolum, which is quite distinct as a genus from P. Olivieri 

 of Cuvier. 



1. Peltella palliolum. B.M. 



Green ; shell green, depressed ; spire very small ; aperture 

 very large. 



Parmacellus palliolum, Ferussac, Tab. Syst. 25. 

 Parmacella palliolum, Ferussac, Hist. Moll. ii. t. 7 A. f. 1-9. 

 Moquin-Tandon, Mem. Acad. Torin. 1850; Journ. Conch. 

 ii. 146, 1851. 

 Parmacella Taunaisii, Blainv. Man. Malac. 463, 1825. 

 Peltella palliolum. Van Beneden, Mag. Zool. 1836. 

 Hab. Brazils (Taunay). 



