To TU-OUES DU ROUSSILLON 
Classe GASTROPODA (Cuvier.) 



ORDRE LL Prosobranchiata FAMILLE : Littorinid:e 
 SecrioN B. Holostomata GENRES : liissoa, Assiminea 


À 
(À @bY D 
FREE | 
A 
AE 
1,2,3, Rissoa Lanciæ Calcara 14, 15, 15, 17, 18, 19, Rissua ru lis Phihppi 
ms 6, — reticulita Montagu : 20) 21, 22, — Costata Adams 
| 4 — Mariæ d'Orb 23, 24, 25, 26, —  pagodula B. D. D. 
(MBA MO,  — —  — var. rustica BD: D. 27, 28, 29, 30, Assiminea littorina Delle Caiaïe 
11, 12,13, — subcrenulata Schwartz 31, 32, _ Sicana Brugnone 
Bucquoy, Dautzenberg & Dollfus. 
