LIMAX. 197 



of dorsal smaller rugae, the shield less acuminated posteriorly 

 with a less developed free anterior portion. 



Lessona and Pollonera enumerate six subspecies (scarcety of 

 varietal importance), and numerous varieties, as follows: 



Subspecies CORSICUS, Moquin-Tandon (stricto sensu). 



Carina pallid ; lateral areas of the disk reddish or reddish 

 orange, margin of pulmonary orifice light colored. 



Yar. TYPUS, Moquin-Tandon (fig. 59). Light orange ash-color, 

 the carina light reddish brown. 



Yar. FABREI, Moquin-Tandon. Back brownish, confusedly sub- 

 zonate, carina lighter colored. 



Yar. SIENENSIS, Lessona and Pollonera. Shield light chestnut, 

 body subfasciate on the back, carina lighter, lateral zones of 

 the disk carneous. 



Subspecies DORI^:, Bourguignat (fig. CO). 



Unicolored, reddish carinate ; pulmonary orifice black- 

 margined ; lateral zones of the sole brownish or blackish. 



Yar. SIMPLEX, Lessona and Pollonera. Blackish with the carina 

 blood-red, not reaching the shield. 



Yar. LINEATUS, Lessona and Pollonera. Differs from the pre- 

 ceding in the red line reaching the shield. 



Yar. RUBROLINEATUS, Lessona and Pollonera. Like the preceding, 

 but the back with two series of red maculations. 



Yar. FUSCUS, Lessona and Pollonera. Brownish, carina and two 

 series of rugae light reddish. 



Yar. BRUNNEUS, Lessona and Pollonera. Chestnut-brown, carina 

 blood-red. 



Yar. PALLESCENS, Lessona and Pollonera. Light reddish brown, 

 carina red. 



Yar. SANGUINEUS, Lessona and Pollonera. Light reddish brown, 

 carina and rugae red. 



Subspecies ISSELII, Lessona. 



Back maculated with black, carina red ; shield unicolored ; 

 pulmonary orifice black-margined, rarety light-margined. 



