160 PROCEEDINGS OF THE ACADEMY OF [May-Oct., 



occur in the district nor in the Departement du ^^ar. Bourguignat 

 has retained the name as valid. It has since been reported from 

 Morocco at Tangier by M. Hesse, in 1880. 



Testacella episcia Bourguignat. This species described from 

 the entoconch alone, no longer exists in the Risso collection. 



SucciNEA MAJOR Risso (59). The carton containing specimens 

 of this species also includes one specimen of Succinea putris L., 

 which must have come from elsewhere, as it is not known from the 

 Alpes-]Maritimes, nor even from the adjacent Departement du Var. 



The dimensions given by Risso for this species are 18.0 mm. in 

 length and for the S. elegans 10.0 mm. The two forms are identical, 

 and the species is common in the environs of Nice, varying from 

 ten to eighteen millimeters in length. 



The species was subsequently named S. Corsica by Shuttleworth, 

 but the name elegans has generally been adopted for it. The name 

 major does not appear in Clessin's Nomenclator of Pfeiffer, who re- 

 ferred both of Risso's species to varieties of S. putris L. 



Succinea elegans Risso (59). See remarks under the preceding. 

 In 1842, Pfeiffer named a species of Bulimulus, Succinea elegans. 



Helicogena pomatia (L.) Risso (60). This species exists in the 

 Alpes-Maritimes, but only in the high valleys of the Var, of the 

 Vesubie, and of the Tinee. 



Helicogena nemoralis (L.) Risso (60). Common in the De- 

 partment. It has not varied in form since the middle Pleistocene.^ 



Helicogena candidissima (Drap.) Risso (61). Common in the 

 Alpes-Maritimes below the altitude of 1200 meters. Risso's variety 

 is a scalar form. 



Helicogena splendida (Drap.) Risso (61). Risso says that this 

 species lives on the hills about Nice. He must have confused it 

 with H. niciensis of Ferussac. The H. splendida has not crossed 

 the Var and I have found no trace of it in the numerous quaternary 

 deposits of this region. It does exist on the right bank of the Var, 

 locally, at the extreme limit of the Department. Risso gives to 

 specimens which he had collected or which had been given to him 

 a diameter of 10 mm., there are none of this size in his collection. 



*See: Caziot et Maury, Tableau des Mollusques terrestrcs et fluviaiiles du 

 Pleistocene de la Ligurie occidentale et du Departement des Alpes-Maritimes, Journ. 

 de Conchyl., vol. 57, p. 317, 1909. 



