MOLLUSQUES DU: ROUSSILLON 
Planche 353. 
Classe GASTROPODA (Cuvier) 
ORDRE LL. Prosobranehiata FAILLES : Litforinidiv, Neritidæ 
SECTION B. Iolostomata GENRES : Rissoa, Smaragdia 
F 
M2 Rissoa carinata Da Costa. 22 
34, 5; 6, — — — ver. ecarinata Monts. 
7; 8, 9, 10, 11, 12,13, Rissoa lactea Michaud. 245% 
1}, Smaragdia viridis Linné. 325$ 
15, 16, _— — — var. Matonia Risso. 
17, 18, = mo. var. producta B. D. D. 
19, = — — var. lineata Monts. 
29, — — var: albo-maculata B. D. D. 
Bucquoy, Dautzenberg & Dofus. 
