CANARIAN GROUP. 425 



bus 7, vix convexiusculis ; apertura sat magna, lunato-ovali, 

 intus fuscula ; peristomate incrassato, late albo-expanso, mar- 

 ginibus lamina tenuissima (ad insertionem dextram subnodula- 

 tam) jimctis. — Long. lin. *1\ ; diam. maj. 3^. 



Buliminus ocellatus, Mouss., Faun. Mai. des Can. 107. 



pi. vi. f. 5-7 (1872) 

 Bulimus ocellatus, Pfeiff., Mon. Hel. viii. 90 (1876) 



Habitat Gfomeram, et Hierro ; ab ilia a Barone de Paiva re- 

 ceptus, sed lectus in hac a cl. Fritsch. 



The only example which I have seen of this very elegant 

 Bidimus, and from which the above diagnosis has been com- 

 piled, was received by the /Baron Paiva from Hermigua, on the 

 western side of Gromera ; but the species is said by Mousson to 

 have been taken by Fritsch in Hierro. Its large size (for a 

 member of the variatus- type) and robust, elongate-ovate con- 

 tour, added to its shining, solid, and porcelain-like surface — 

 which is of a clear milky white, with the apical whorls and a 

 few very irregular patches (which have a tendency to arrange 

 themselves in two spiral rows) on the ultimate and penultimate 

 ones of a pale yellowish-brown — will suffice at once to distinguish 

 it. The aperture (which is fuscous within) is rather largely de- 

 veloped, with the peristome white and broadly expanded ; and 

 in the specimen before me there is a very indistinct row of 

 minute and almost obsolete granuliform tubercles along the 

 dorsal line of the basal volution, commencing from the right- 

 hand insertion of the peristome, — as though to represent the 

 faint angle which is just traceable in the B. Moquinianus, and 

 which is so strongly expressed in certain members of the Subu- 

 llna Cfroup. 1 



Bulimus Moquinianus. 



T. rimato-perforata, elongato-subfusiformis, solidiuscula, ni- 

 tidiuscula, distincte irregulariter striata, pallide ochraceo-cornea 

 et plagis obliquis obsoletis subpallidioribus longitudinaliter 

 obscure ornata ; spira subcylindrico-conica ; anfractibus 8, pla- 

 niusculis, ultimo fere latitudine penultimi (sc. vix latiore) nec- 

 non ad lineam dorsalem obsoletissime subangulato, penultimo et 

 antepenultimo subauctis ; apertura parva, peristomate crassius- 

 culo sed breviter expanse, marginibus subapproximatis et lamina 

 tenuissima simplici junctis, columellari haud refiexo, rimam 



1 The slight concavity of the columella which is referred to by Mousson 

 in his diagnosis of this species is no specilic character at all, for it exists in 

 all the exponents of this immediate section, and is certainly more conspicuous 

 in the B. myosotis and rupicola than it is in the ocellatus. 



