PTOEECOLES, DU ROUSSILLON 

Planche 353. 
Classe GAS TROPODA (Curier) 
= Re > CO 
- » £ : 1 LC e Li ; . * - C1 
ORDRE L Prosobranchiata FanILLes : Littorinidæ, Neritidæ 
> . - « D = 2 * - 
SECTION B. Holostomata GENRES : Rissoa, Smaragcia 

nie Rissoa carinata Da Costa. 
3 41 5, 6, = — — var. ecarinata Monts. 
7, 8,9, 10, 11, 12,13, Rissoa lactea Michaud. 
1H, Smaragdia viridis Linné. 
15, 16, = _— — var. Matonia Risso. 
17, 18, ES —  — ver. producta B. D. D. 
19, => — — var. lineata Monts. 
29, — — var. albo-maculata B. D. D. 
Bucquoy, Dautzenberg & Doillfus. 
