LL 
MOT LUSOUEAEU ROUSSILEON 
PLANCHE 26. 
Classe GASTROPODA (Cuvier) 
——… 
ORDRE 1  Prosobranchiata Famizze Cerithiad:e 
SECTION DB Holostomata GENRES Bittium Triforis, Cerithiopsis 
me Le em —— 
.2, Bittiun lacteum Philippi, Z'S 12, Triforis perversus Lin. var. bico'or M onterosato 
3 4! _ — var, lutea .B. D, D. 13, — -- — (type) 4 
F Fi Le = var. tessellata .B. D. D. 18, 19 20, -- — var. obesula Monterosatc à | 
9, 10, 11, 14, 15, 16, 17, Tniforis perversns Linné 2 44 21, 22, 23, 24, %5, 26, 27, Ucrithiopsis Metaxae 207 
var. adversa Montayu. -Delle Chiaje, 4 
Bucquoy, Dautzenberg & Dollfus. { 
