[227] 



S. CERTJLLI-IRELLI 



211. 



01. glycymeris var. iruncata Conti sp. — Parte III 



01. glycymeris var. curia n. var. — Parte III, Tav. XVIII [XXVIII], flg. 2 . 



Gen. Saxicava Fleur. d. Bellev. 



201. Saxicava arclica L. sp. - Parte III, Tav. XVIII [XXVIII], fìg. 3-10 ... 

 S. arclica var. saxicavelloides n. var. — Parte III, Tav. XVIII [XXVIII], fìg. 11 



202. Saxicava rugosa L. sp. - Parte III, Tav. XVIII [XXVIII], fìg. 12-15 . 



Gen. Saxic avella Fischer. 



203. Saxicavella plicata Mtg. sp. - Parte III, Tav. XVIII [XXVIII], fìg. 16-20 . 



204. Saxicavella ungulata "Wood sp. — Parte III, Tav. XVIII [XXVIII], fìg. 21-23 . 



Fam. Gastrocliaenidae Gray. 

 Gen. Gastrochaena Spengler. 



205. Gastrochaena dubia Pennt. sp. — Parte III, Tav. XVIII [XXVIII], fìg. 24-28 . 



Ord. Dibranchia. 

 Fam. Thyasiridae Dall. 

 Gen. Thyasira (Leach) Lk. 



206. Thyasira flexuosa Mtg. sp. — Parte III, Tav. XVIII [XXVIII], flg. 29 . . . 



207. Tìiyasira croulinensis Jeffr. sp. — Parte III, Tav. XVIII [XXVIII], flg. 30, 31 



208. Thyasira (Leptaxinus) suborbieulata n. sp. — Parte III, Tav. XVIH [XXVLII], 32, 33 



209. Thyasira (Lucinaxinus) reticulata n. sp. - - Parte III, Tav. XVIII [XXVIII], fìg. 34. 



Fam. Diplodontidae Dall. 

 Gen. Diplodonta Bronn. 



210. Diplodonta rotundata Mtg. sp. — Parte III, Tav. XVIII [XXVIII], fìg. 35-43 . 

 D. rotundata var. lupinus Br. sp. — Parte ILI, Tav. XVIII [XXVTH], fìg. 44, 45 



211. Diplodonta astartea Nyst sp. — Parte III, Tav. XVIII [XXVIII], fìg. 46, 47 . 



212. Diplodonta trigonula Brn. — Parte III, Tav. XVIII [XXVIII], fìg. 48 . 



213. Diplodonta Brocchii Desh. — Parte III, Tav. XIX [XXIX], fìg. 1-5 . 



Fam. Lucinidae Fleming. 

 Gen. Lucina Brug. 



214. Lucina (Loripinus) fragilis Phil. — Parte III, Tav. XIX [XXIX], fìg. 6-8 



215. Lucina (Megaxinus) elliptica Bors. — Parte III, Tav. XIX [XXIX], fìg. 9 

 L. elliptica var. Pecchioni Font. — Parte III, Tav. XIX [XXIX], fìg. 10. 



216. Lucina (Megaxinus) transversa Brn. — Parte III, Tav. XIX [XXIX], fìg. 11-15 



217. Lucina (Dentilucina) borealis L. sp. — Parte ILI, Tav. XIX [XXIX], fìg. 16-23 



pag. 150 [166] 

 » 150 [166] 



151 [167] 



151 [167] 



152 [168] 



» 152 [168] 

 » 153 [169] 



154 [170] 



155 [171] 



155 [171] 



155 [171] 



156 [172] 



157 [173] 



158 [174] 



158 [174] 



159 [175] 



160 [176] 



100 ]176] 

 161 [177] 



161 [177] 



162 [178] 

 102 |178] 



