CAPE-VERDE GROUP. 519 



but he gives us no information concerning it, — either as to the 

 exact island in which it was brought to light, or hy whom it 

 was found ; nevertheless as his paper was compiled for the 

 express purpose of recording the species which were met with 

 by MM. Bouvier and de Cessac, I can only conclude that this 

 addition to the fauna was made by them. It is much to be 

 regretted however that he does not tell us plainly where it was 

 obtained, and on whose authority it is admitted. Moreover, 

 although it may accord with the Glandina Tnaderensis, of 

 Albers' ' Malocographia,' it is inaccurate to cite it in a sys- 

 tematic catalogue as the ^maderensis, Albers,' — for Albers 

 never proposed that name at all for a member of the present 

 genus, but merely quoted the species, or form, which had 

 previously been enunciated by Lowe. However this is of no 

 great importance, — for the shell which was described by Mr. 

 Lowe as the Buliraus tnaderensis^ and which was referred to 

 as the ' Glandina niaderensis ' by Albers, is but a slightly 

 narrower and depauperated race of the ordinary European 

 A. lubrica ; though as Morelet expressly refers the Cape Verde 

 examples to the ' maderensis,'' we may, I conclude, assume that 

 that particular phasis of the shell (and not the somewhat larger 

 type) is at any rate the one to which he would call attention. 



Wherever it may have been found, it is at least extremely 

 probable that the present Achatina has been imported acci- 

 dentally into the Cape Verdes, — perhaps from the (equally 

 Portuguese) island of Madeira, where, in low and cultivated 

 spots, this variety of the A. lubrica abounds. Moreover the 

 species is likewise common (though generally, I believe, in its 

 more normal aspect) in the Azorean archipelago, which is also 

 Portuguese ; and there can be little doubt that the occasional 

 intercommunication between these island Grroups would abun- 

 dantly suffice to establish a few Gastropods which, like the 

 present one, the Stenogyra decollata, the Buliraus ventricosus, 

 and the Helix lenticula, are eminently liable to be conveyed 

 along with either ballast or plants. 



Fam. 4. AURICULID.E. 



Genus 9. CARYCHIUM, 3Iull. 



Carychium minus. 



Carychium minus, Fer., Bull. Univ. des Sc. et de Vlndustr. 

 (1827) 

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



Habitat S. lago (sec. Ferussac); mihi non obvium, sed 

 nuper a cl. Morelet citatum. 



