AZOREAN GROUP. 53 



Sectio II. OPERCULATA. 



Fam. 6. CYCLOFHORIDjE. 



Genus 16. CRASPEDOPOMA, Pfeiff. 



Craspedopoma hespericum. 



Cyclostoma hespericum, Morel, et Dr., Journ. de Conch, vi. 



152 (1857) 

 Cyclostomus hespericus, Pfeiff., Mon. Pneum. Swppl. 1. 



122 (1858) 

 Craspedopoma hespericum, Mouss., Viert. des Nat. Zurich, 



168 (1858) 

 Cyclostoma hespericum, Morel., Hist, des Nat. Acor. 212. t. 5, 



f. 10 (1860) 

 „ „ Drouet, Faun. Acor. 170 (1861) 



Habitat Sta. Maria, S. Miguel, Terceira, et Fayal ; in mon- 

 tibus sub foliis emortuis, parum vulgare. 



This characteristic little Cyclostomid is quite on the Ma- 

 deiran type, and is probably more allied to the C. Monizianum 

 of that archipelago than it is to the lucidum. It appears to be 

 smaller than the latter, and less globulose, but "with much the 

 same peculiarity of colouring, — namely, a coffee-brown, fading- 

 off frequently (either wholly or in part) into a yellowish or 

 ochreous tint. Occasionally also it would seem to be somewhat 

 transparent, but it is more often solid and slightly shining. 



The C. hespericum is recorded by both Morelet and Drouet 

 from the islands of Sta. Maria, S. Miguel, Terceira, and Fayal ; 

 where it occurs, beneath fallen leaves, &c, at a tolerable eleva- 

 tion in the mountains. 



Fam. 7. HELICINIDJE. 



Genus 17. HYDROC-ENA, Parreyss. 



Hydro csena gntta. 



Hydrocsena gutta, Shuttl., Bern. Mitth. Syn. 145 (1823) 

 „ „ Pfeiff., Mon. Pneum. Suppl. 1. 157 



(1858) 

 „ „ Morel., Hist. Nat. des Acor. 214. t. 5. 



f. 11 (1860) 

 „ „ Drouet, Faun. Acor. 170 (1861) 



„ „ Mouss., Faun. Mat. des Can. 147 



(1872) 



Habitat Sta. Maria, S. Miguel, et Fayal ; sub foliis emortuis 

 in sylvaticis editioribus occurrens. 



Said by Morelet and Drouet to occur in Sta. Maria, S. 



