208 LIMAX. 



L. Norvegicus, Westerl. ; L. agrestic, Lindstrom, and probably 

 L. filans, Sordelli (non Hoy), are synonyms. 



Var. IMMACULATUS, Pollonera and Lessona. Pallid, without 

 macnlations ; shield often yellowish. 



Var. FUSCONOTATUS, Pollonera and Lessona. Pallid or yellowish 

 brown, maculated or reticulated with brown. 



L. PANORMITANUS, Lessona and Pollonera. PI. 51, fig. 100. 



Attenuated behind, carina distinct, short, abruptly subtruncate ; 

 shield large, not gibbous, angulated behind, smooth (in alcohol); 

 pulmonary orifice posterior, pallid margined ; lateral zones of 

 sole very plainly transversely silicate ; brownish olivaceous, shield 

 darker, sole pallid, unicolored. Length (in alcohol), 1-2 inches. 



Palermo, Sicily. 



The shield is less developed in front, the carina truncate, and 

 the dentition and reproductory organs differ slightly from L. 

 agrextis, of which it should, perhaps, form a variety. 



Var. PONSONBYI, Clessin. Back and shield covered by numerous 

 small blackish brown maculations. Gibraltar. 



L. MELANOCEPHALUS, Kaleniczenko. PI. 51, fig. 10. 



Larger than L. agrestis, with longer neck, keel much less con- 

 spicuous, and the same color or but little lighter than the rest of 

 the back ; dark brownish gray, unspotted, the mantle brown- 

 tinged, the head and neck black ; sole light brownish gray. 



Length, 2-3 inches. 



Caucasus. 

 L. JICKELII, Heynemann. PI. 51, fig. 14. 



Brownish gra^y, only keeled towards the tail, lighter on the 

 sides ; shield minutel}" granular, nearly smooth ; sole nearly the 

 same color as the sides. Shell thin and fragile, shining, the apex 

 plainly on the left side. Length (in spirits), 15 mill. 



Abyssinia (alt. GOOO feet). 



L. ARGENTINUS, Strobel. PI. 51, figs. 11, 12. 



Brownish ash-colored, slightly rugose, ocular tentacles ashy 

 black, shield concentrically sulcate, back but slightly carinated. 



Length, 33 mill. 



Argentine Republic. 

 L. meridionalis, Doring, is a synonym. 



