492 TEST ACE A ATLANTIC A. 



cases where the species have been found hitherto only sub- 

 fossilized (under which circumstances they must be looked 

 upon practically as extinct) the names have been printed like- 

 wise in italics. 



Fam.l. 



Genus 1. UMAX, Linne. 



Limax, sp. ? 



Limax sp., Dohrn, Mai. Bldtt. xvi. 1 (1869) 

 Habitat S. Antao, et S. Nicolao ; a cl. H. Dohrn in mon- 

 tibus copiose deprehensus. 



A Limax was taken by Dr. H. Dohrn in S. Antao and S. 

 Nicolao, but the subsequent loss of his material prevented him 

 from identifying the species ; and I can only therefore record 

 the fact, that the genus (as in the case of Vitrina) is un- 

 doubtedly represented in the Cape Verde archipelago. 



Fam.2. VITRINHLE. 

 Genus 2. VITRINA, Drap. 



Vitrina, sp. ? 



Vitrina sp., Dohrn, Mai. Bldtt. xvi. 1 (1869) 

 Habitat S. Antao ; ad ' Barro do ferro ' a cl. Dohrn semel 

 reperta. 



Although unable to state what the exact species is which 

 was obtained by Dohrn in S. Antao (for he himself had no 

 opportunity of identifying it with any known form), I think it 

 desirable nevertheless to call attention to the fact that a 

 Vitrina was found by him at the Barro do Ferro in that 

 island ; and it is at least interesting, therefore, to know that 

 the genus is not altogether unrepresented in the Cape-Verde 

 archipelago. Dohrn's short remark about it is as follows : 

 * Einmal von mir in S. Antao bei Barro do ferro circa 400 

 Fuss hoch gefunden. Diese beiden Arten sind mir leider nebst 

 anderen in Spiritus bewahrten Sachen verloren gegangen.' 



Fam. 3. HELICIDJE. 

 Genus 3. PATULA, Held. 



( lulus, Woll.) 



Patula gorgonarum. 

 Helix aluta, Alb., in litt. 



gorgonarum (Patula), Dohrn, Mai. Bldtt. xvi. 3 ( 1 869) 

 Morel., Journ. de Conch, xiii. 242 (1873) 



Ffeif.,Mon.Hel.vu. 209(1876) 



