— • 601 — 



TH$otiostoiiia Fit/.. contiii. 



Geuiis Melicoideoiuiii. Typicae species: Helix obvo- 



luta M. et lioloseiicea Stud. 

 Chap.i». 1837. Calal. p. 8. — subgenus Helicis. 

 Pariter Hartm. 1840. Syst. Uebers. 

 Ghay 1840. Turt. Maii. ed. 'ia p. 139. 

 Synon. Helicodonta (sp.) Fcr. 

 Helicella Blainv. 

 Hoiicodonla Risso. 

 Vortex (sp.) Oken oliin. 

 Vortex Beck. 

 Gonostoma Heid. 

 Eupliemia Leacii. 

 Trisonotreta Ko.mg 1825. Icon. sect. num. 70.* Cf. Sow. 

 jun. Concli. Man. p. 108. ed. 2a p. 277. 

 Etym. r()lyo)vog, triangulus; TQi^tog, perforatus. 

 Genus Bracliiopodum. 



Pariter Bhonn 1837. Lelli. p. 77. 308. — subge- 

 nera: Atrypa, Deithyris, Ortiiis. 

 — Del tiiy ris Buch. 

 Trisorinm Rafin. 1831. Contin. Monogr. Biv. * t. AgaBS. 

 Nomencl. 

 Etym. Triga; rima. 



Genus Brachio|)odum. Cf. T r i g o n i n a. 

 Triniiisenlns Schmidt Mus. Goth. ined. et Moller 1832. 

 Isis p. 132. 

 Etym. Tres; muscuius. 

 Novum genus Patellaceorum? 

 = Siphonaria Sow. 

 Triofionta Agass. 1847. Nom. zooi. Ind. univ. vid. Tri- 



donta. *°) 

 Triotlontopsis (bene!) A(;a8S. 1847. ibid. vid. seq. 

 Triocloiisis» Rafin. 18! 9. Journ. de phy.s. tom. 88. p. 425. 



85) Triodoiita Bory (1824.) gemis Polygastiicum. 

 Triodoiita Muls. (1843.) geiius Coleoplerorum, 



