47 



T. (Monodonta) fraga-rioides, Lamk. 

 T. ( do. ) articiilatus, Lan.k. 

 T. ( do. ) divaricatus, I. 



Snb-coni- 



T. (Tuibo.) rugosus, L. Furnished with a cal- > cally perfo- 



careons operculum 

 T. sanguineus, L. Length 6 mna., breadth 



7. 

 T. fanulum, Gm. 

 T. rnagus, L. 



T. (monodonta) canaliculatus, Lamk. 

 T. varius, Gm. 



T. (uionud unta) richardii, Peyr. 

 T. umbilicaris, L. Length 14 mm , breadth 19 

 T. adansonii, Peyr. "With three varieties. 

 T. villicus, Phil. * 



ratcd. 



Brondly 



Y umbilica- 



ted. 



Troclti fossilcs. 

 Casts of Trochus arefound in Bed No. 1, the coralline 

 limestone, and in Bed No. 2, the yellow sand. (T. 

 Wright). 



Genns Monodonta, (Lamk) Bronn. 



M. corallina, L. Maltese name Fraula. Not very common. 

 M. vieiiloti, Peyr. Common. 

 M. jusseui, Peyr. 



Genus Phasianella, Lamk. 



Ph. pulla, L. 



Ph. speciosa, Mohlf.; syn. Ph. vieuxii, Peyr. With two 



varieties ; one almost entirely red, and the other 



milky white. 



Genus Turbo, L.; Littorina, Ferr. 



T. neritoides, L.J syn. Littorina cterulescens. Common on 

 rocks at the water line. 



