296 Quarterly Journal of Conchology. 



been explored by Fritsch and Wollaston, and Professor Mousson 

 (Revision de la Faune des lies Canaries) gives a good account of 

 the land mollusca. The following are the numbers : Li max (3), 

 Fledophonis (i), ParmaccUa (3), Tcstacella (2), Vitrina (6?), 

 Hyalina (8), Helix (109), Bidiniinus (24), Stcnogyra (i), Cionella 

 (id), Pupa (ii), Cyclostouiits (4), Craspedopoma (i), Poinatias (i). 

 15 species are cited by Mousson as European. We have already 

 mentioned the few species common to the Canaries and Madeira 

 or the Azores. It, therefore, follows that almost all the Canarian 

 species are peculiar, thus confirming what we have just stated in 

 considering the Madeiran shells. The most prevalent characteristic 

 gioups are Vitrina (6 species), Helix s.g. Monilearia (9), Disciila 

 (6), Gonosioma (7), Iberiis (8), Hemicycla (26), Buliminus s.g. 

 Nap(zus (20), Pupa s.g. Charadrobia (3). The s.g. Leptaxis is 

 comparatively poorly represented by 2 species, and this is the 

 extreme limit of the s.g. Leucochroa, represented by 3 species. 

 Clausilia has not been found. The Pomatias (P. Barthelemianum 

 Shuttl.^ is considered as doubtful, the only authority for assigning 

 it to the Canaries being one specimen so marked in the Marseilles 

 Museum. M. Mousson shows, by an examination of the various 

 groups, that not only are there scarcely any species conunon to 

 Madeira and the Canaries, but that many of the subgenera are 

 different, or represented in very different proportions in the two 

 Archipelagos. (It may be well to state that the " Love " of the 

 text of Professor Mousson's work is a misprint for " Lowe," the 

 name is right enough in the plates, but strange to say almost always 

 mis-spelt in the text). 



D. The Cape de Verdes are miserably poor in mollusca. Most 

 of the few that exist were discovered by Dr. Dohrri, who published 

 the fauna of the islands in the " Malakozoologische BLaetter " for 

 1869. There are 3 species of the s.g. Pati/la, 6 of Leptaxis (the 

 characteristic group), i of Cionella, 2 oi Buliminus, /^ oi Pupa, 

 and 2 of Succinea. This wretched fauna is due to the arid climate 

 of the Islands. 



