303 TEST ACE A ATLANTIC A. 



stances they must be looked upon practically as extinct) the 

 names have been printed, additionally, in italics. 



Sectio I. INOPERCULATA. 



Earn. 1. LIMACID.E. 

 Genus 1. UMAX, Linne. 



Umax canariensis. 



Limax antiquorum, Ledru [nee Fer., 1821], Voy. 1. 186 



(1810) 

 canariensis, d'Orb., in W. et B. Hist. 47. t. 3. f. 1-3 



(1839) 



Bourguignat, Amen. Mai. 11 (1859) 



Mouss., Faun. Mai. des Can. 6 (1872) 



Habitat Canariam Grandem, et TenerifFam (sec. d'Orbigny) ; 

 a DD. Webb et Berthelot lectus. 



I have not seen this Limax ; but, judging from d'Orbigny's 

 diagnosis, its almost uncarinated body would perhaps tend to 

 place it near to the L. agrestis, L. It appears to have been 

 taken by MM. Webb and Berthelot in Grand Canary and 

 TenerifTe ; and d'Orbigny's diagnosis of it is as follows : ' Cor- 

 pore elongate, graciliter albo-griseo, nigro-maculato, supra ru- 

 goso-striato, antice brevi, postice elongatissimo conico sub- 

 acuminato ; pallio irregulariter rugoso ; carina subnulla, retro 

 solummodo signata.' 



Limax polyptyelus. 



Limax cinereus, Ledru [nee Mull., 1774], Voy. 1. 186 (1810) 

 carinata, d'Orb. [nee carinata, Leach, 1820], in W. 



et B. Hist. 47. t. 3. f. 4-8 (1839) 

 polyptyelus, Bourguignat, Amen. Mai. 11 (1859) 

 Mouss.y Faun. Mai. des Can. 6 (1872) 



Habitat Canariam Grandem, et Teneriffam ; hinc inde in 

 humidis. 



This is an acutely carinated, somewhat compressed little 

 slug, which seems to have been found by MM. Webb and 

 Berthelot in damp places near Sta. Cruz in Teneriffe. It was 

 met with by myself in the upper part of the region of El Monte 

 in Grand Canary, close to the village of San Mateo ; but, sin- 

 gularly enough, my examples were in a dried state, picked 

 from off a white-washed wall, where the lime would appear to 



