192 LIMAX. 



Var. MONTANUS, Leydig. Light grayisli or grayish brown, with 

 obsolete brown maculations. 



Var. DUBIUS, Lessona and Pollonera. Light yellowish or brown- 

 ish ash, shield confusedly zoned, back with four blackish 

 zones. 



Var. FASCIATUS, Razoum. Black, back with five continuous or 

 interrupted whitish stripes, shield black, the free part white- 

 margined. 



L. CINEREO-NIGER, Wolf. PL 46, fig. 44 ; PI. 47, figs. 45-4t. 



Large, coarsely rugose, the squamae large and oblong, carina 

 somewhat prominent, long ; shield moderate, subgibbose, angu- 

 lated behind, free part but little expanded, strongly concentri- 

 cally rugose, unicolored or with obsolete marginal maculations ; 



disk with brownish lateral zones. Length, 5-9 inches. 



Europe. 



In the opinion of some naturalists the L. maximus, of Linn., 

 is this species, or includes it. The two are readily distinguished 

 by the unicolored disk of maximus, particolored in cinereo- 

 niger, and by the larger rugosities of the latter. L. Decampi 

 has the shield more strongly acuminated posteriorly, more 

 strongly developed anteriorly, more coarsely rugose, and its 

 mucus is colored. 



L. TransylvanicuSj Kimak (not Heynemann), and perhaps 

 vars. Isseli and Strobeli of Pini, are to be placed here; the two 

 latter supposed by Lessona and Pollonera to be cases of 

 albinism. 



Numerous varieties have been described, including: 



Var. MAURUS, Held. Back black, lateral areas of the sole black, 

 middle area yellowish white, pulmonary orifice black- 

 margined. 



Var. PAVESI, Pini (figs. 45, 46). Chestnut-brown, lateral areas 

 of disk the same color, or bluish black, central area 

 yellowish white. 



Var. CAMERANI, Lessona and Pollonera. Smaller; chestnut- 

 brown, with the carina and a narrow dorsal line of dirty 

 white, pulmonary aperture white-margined. 

 Length, 3-4 inches. 



