CANARIAN GROUP. 363 



As already mentioned, it is far from impossible that the 

 //. hierroensis, Grasset, from Hierro, may prove to be Shuttle- 

 worth's H. Maugeana, in which case the latter name would 

 have the priority. At any rate the specimen, in the collection 

 of the late Mr. Cuming, from which Shuttleworth appears to 

 have drawn up his diagnosis, was examined carefully by Mr. 

 Lowe, who affirmed it to be conspecific with the one from 

 Hierro. Still there is a possibility that Mr. Lowe was mistaken 

 in assuming the example in question as Shuttleworth's absolute 

 type, and more particularly so since the published diagnosis of 

 the latter does not accord sufficiently well with Grasset's 

 species (re- enunciated by Mr. Lowe under the name of ' H. val- 

 verdensis ') ; so that, in the uncertainty, I think that we are 

 fully justified in retaining the title ' hierroensis ' for the 

 Valverde Helix, and in concluding that Shuttleworth's term 

 ' Maugeana ' must apply to some other (cognate) form. 



After what has just been said, it is scarcely to be expected 

 that I should attempt to decide what the H. Maugeana of 

 Shuttleworth really is. Yet examples of a Helix, now before 

 me, which were received by the Baron Paiva from Arona in 

 Teneriffe, had they not been totally ungranulated, would have 

 tallied better perhaps with Shuttleworth's diagnosis than the 

 Hierro one does. Still, being ungranulated, they cannot be 

 treated as the H. Maugeana ; and I fear therefore we must be 

 content to leave the latter species in doubt, trusting that 

 future researches, and a further comparison of the Shuttle- 

 worthian type (if it be still accessible), may yet succeed in 

 solving the problem of its identity, or otherwise, with Grasset's 

 H. hierroensis. Shuttleworth r s diagnosis of his H. Maugeana 

 is as follows : ' T. obtecte perforata, tenuis, globoso-depressa, 

 flavescente-fusca, fasciis fuscis obsoletis ornata, tenuiter plicato- 

 striata et reticulatim malleata, sublente minute et creberrime 

 granulata, nitidiuscula ; spira subdepressa, anfr. 4^- convexi, 

 ultimus antice subgloboso-inflatus, demum subito deflexus ; 

 apertura perobliqua, lunato-ovalis ; perist. leviter expansum, 

 reflexum, album, marginibus subparallelis, basali paululum 

 dilatato-calloso. Diam. maj. 21 ; min. 16; alt. 11 millim.' 



Helix Guanartemes. 



Helix Guanartemes, Grass., Journ. de Conch, v. 346. 1. 13. 



f. 15, 16 (1857) 



Pfei/., Mon. Hel. iv. 232 (1859) 



Manriquiana, Lowe, Ann. Nat. Hist. vii. Ill (1861) 



Guanartemes, Mouss., Faun. Mai. des Can. 99 (1872) 



Habitat Canariam Grandem ; in intermediis per regionem 



