396 TEST ACE A ATLANTIC A. 



( Turricula, Beck.) 



Helix inops. 



Helix inops, Mouss., Faun. Mai. des Can. 48. pi. 3. f. 1-3 



(1872) 

 Pfeiff., Mon. Hel. vii. 102 (1876) 



Habitat Canariam Grandem ; a cl. Fritsch (sec, Mousson) 

 semel lecta. 



I have had no opportunity of inspecting a type of this 

 species, which was described by Mousson from a single example 

 taken by Fritsch in Grand Canary ; and I can merely refer, 

 therefore, to Mousson's observations which accompany his 

 diagnosis. c Je n'ai vu qu'un individu,' says he, ' de cette espece, 

 qui se distingue des autres especes Canariennes de ce groupe 

 par sa simplicite. La surface n'a d'autre sculpture que de fines 

 stries subcostulees sans nodulations quelconques ; a la base elles 

 sont encore moins marquees et irregulieres. Les tours du cone 

 regulier, peu eleve, sont un peu convexes, surtout le long de la 

 suture ; la carene, qui est peu aigue, ne presente pas de crene- 

 lures prononcees, mais seulement des stries un peu plus accen- 

 tuees. La coloration est simplement blanche, sans zones ni 

 taches, a 1'exception du nucleolus, qui comme d'ordinaire se 



presente comme un grain hyalin et corneV (I. c. 48.) 

 i 



Helix cyclodon, 



Helix cylodon, W. et 5., in litt. 



d'Orb , in W. et B. Hist. 64. t. 2. f. 1-3 



(1839) 



Pfeiff., Mon. Hel. i. 177 (1848) 

 Mouss., Faun. Mai. des Can. 48 (1872) 



Habitat ' Canaries ' (sec. W. et B.) ; mihi non obvia. 

 Although obtained by Webb through M. Terver, whose orchil- 

 infesting Helices have proved so untrustworthy as regards 

 habitat, and which have introduced so much confusion into the 

 several faunas of the Atlantic archipelagos, I nevertheless can- 

 not altogether reject (as Mousson has practically done, even 

 whilst allowing the species to increase the number of the 

 catalogue) the Canarian claims of the H. cyclodon which, 

 being quite on the Despreauxii and moderata type, seems to 

 me to have a fair chance of having been received from one or 

 the other of the ssven islands of this widely scattered Group ; 

 though to be expected to believe that it occurs, as M. Terver 

 had the effrontery to assert (and that too without the slightest 

 shadow of evidence), in the Canaries, Cape Verdes, Madeiras, 

 and Azores is simply preposterous. Mousson however was 



