200 LIMAX. 



maim ( ligs. 68, G9). Q.uitc a literature has sprung up upon the 

 identity or non-identity of these forms. Despite some small 

 anatomical and external differences, the system of coloration 

 and other characters unite them. Numerous varieties might be 

 named by an enterprising systematist ; luckily one only has so 

 far been described. 



Yar. INCOMPTA, Kimakowicz. Blackish, unicolored. 



L. CONEMENOSI, Bottger. PL 60, figs. 83, 84. 



Something like L. maximus, but proportionally stouter, with 

 a shorter carina; color pink-ash, with black spots, whitish on 



the sole. Length, 62 mill. 



Greece. 



Yar. MULTIPUNCTATA, Bottger (fig. 84). The spots smaller and 

 much more numerous. 



L. FLAVUS, Linn. PI. 49, figs. 70, 72 ; PL 50, fig. 76. 



Moderately rugose, shortly carinate ; amber-colored, yellowish 

 or yellowish green, variegated with brown and white ; shield 

 obtusely angulated behind, very finely concentrically striate, 

 yellowish, with round lighter-colored maculations ; pulmonary 

 orifice light-margined ; disk yellowish white, unicolored ; oculif- 

 erous tentacles bluish ; mucus yellow. Length, 3*5-5 inches. 

 Europe. Introduced into the United States, Australia, 



Buenos Ayres, Algiers, Syria, Madeira. 



This nocturnal species is distinguished by its bluish tentacles, 

 its yellow mucus, and the light-spotted shield. There are a 

 number of synonyms. L. Companyoi, Bourg. (figs. 70, 71 ), of the 

 Pyrenees, is distinguished by a slight difference in the jaw and 

 the posterior angulosity of the shield which Bourguignat sup- 

 poses to be rounded in the flavus. L. bseticus, Mabille, is only 

 distinguished by the absence of the light-colored spots on the 

 back. L. Deshayesi, Bourg. (fig. 72), of Algiers (according to 

 Lessona and Pollonera), appears to have been founded on a 

 specimen of which the front portion of the shield has suffered 

 an accident, and the remainder of it is concave instead of being 

 convex. Other synonyms are L. uariegatus, Drap.; L. ungui- 

 culus, Brard ; L. umbrosus, Phil.; L. (Krynickillus} maculatus, 

 Kalenicz. (fig. 76); L. Breckwortliianus, Lehmann (Australia); 



