— 617 — 



TrocUoidea Feruss. contin. 



Janthinaj Litiopa, Phasianella , Trochus , Pleuro- 

 tomaria, Scalaria, Melanopsis, Planaxis. 

 Menke 1830. Syn. ed. 2a p. 47. — 2a fan». Poma- 

 tostomorum. Genera: Pileolus, Septaria, Neritina, 

 Nerita, Ampullaria, Janthina, Phasianella, Plana- 

 xis, Turbo, Monodonta, Delphinula , Solarium, 

 Maclurites, Euomphalus, Cirrus, Trochus, Te- 

 lescopium , Pleurotomaria . Scalaria , Melanopsis, 

 Pyrena. 

 = N e r i t a c e M , T u r b i n a c e a , J a n t h i n a e , P e r i - 

 s t o m i a ( p. p. ) Lamck. 



Troehoiclea Latr. 1825. Fam, nat. (Trochoida in ed. 

 Germ. p. 184.) 



Tertia familia Gymnocochlidum. Genera : Trochus, 

 Solarium, Kotella , Monodonta. 



F. A. RoM. 1836. Verst. nordd. Ool. p. 147. — fam. 

 Pectinibranchiatorum. Genera : Solarium, Uotella, 

 Monodonta, Phasianella, Delphinula, Euomphalus, 

 Rissoa , Maclurita , Scalaria , Pleurotomaria , Tro- 

 chus, Cirrus. Turbo, Turritella, Littorina. 

 = T u r b i n a c e a Lamck. 



Troelioidea (? Brown.) vid. Trochoida Brovvn. 



Troelioldea Philippi 1847. Zeitschr. f. Malak. p. 3. 



Familia Gasteropodum; gcnera: Haliotis, Stomatia, 

 Stomatella, Delphinula, Solarium, Rotella, Tro- 

 chus, Monodonta, Turbo, Phasianella, Lacuna, 

 Euomphalus, Cirrus, Pleurotomaria , Catantosto- 

 ma, Scissurella. 



Troeholdeae Menke olim 1828. Syn. p. 26. 



Secunda fam. Pomastomarum. Genera: Pileolus, 

 Septaria, Neritina, Nerita, Ampullaria, Janthioa, 

 Phasianella, Monodonta, Delphinula, Solarium, 

 Trochus, Telescopium, Pleurotomarla , Scalaria, 

 Melanopsis, Pyreaa, 



