16 IIELIX !:;. 1. 2. 



fi. iiitus non labiatae 

 * ccarinatae 



7 spira convcxa 



\. edentulae §. 69. Nr. 963 — 985. 



2. dentatae §. 70. — 986 — 997. 



77 spira plana vcl conoava . §.71. — 998 — 1016. 

 ** carinatae 



7 edentulae §.72. — 1017 — 103i. 



77 dentatae §. 73. — 1 03';— 1 050. 



IV. Peristoniatc angulatim relloxo, arctispirac. 



1 . Pervio-unibilicatae, 

 a. umbilico lato. 



«. Edentulae §.74. — 1051—1056. 



(j. Lamcllatae §. 75. — 1057 — 1061. 



j'. Dentatae §. 76. — 1062 — 1070. 



h. umbilico mcdiocri §-77. — 1071 — 1083. 



2. Olilique et impcrvie umbilicatae . , , §.78. — 1084 — 1088. 



3. Obtectc perforatae §. 79. — 1089-1096. 



V. Species dubiae vel sedis inccrlae. , . , §.80. — 1097 — 1132. 



§• 1- 

 I. H. Falconari Recve. 



T, profuiide uinbilicata, ovata, tenuis, vesicularis, pallide 

 brunnea , fasciis maculisque prope suturam saturatioribus ornata ; 

 spira parvula, obtusiuscula; anfr, 4 convexi, rapide accrescentes, 

 ultimus valde inflatus, minutissime granulatus, antice declivis, 

 circa uml)ilicum magnum infundibuliformem subcompressus ; 

 apertura lunato-oblonga, iritus margaritacea ; perist. rectum, mar- 

 ginibus callo tenuissimo junctis, columellari valde dilatato, reflexo. 

 — Diam. maj. 70, min. 54, alt. 44 mill. (Mus, Cuming. ) 



Jlelicophanta Falconeri Reeve mss. Giwj in Proc. Zool. Soc. 183 4. 

 p. 63. 

 — — Miill. synops. p. 3. 



Ilelix Falconari Reeve Conch. syst. II. i. 163. f. 4. 



— Fer. hist. t. 10 A. f. 1—3. 



Eurycratera Falconeri Beck ind. p. 45. 

 Habilat in Nova Hollandia. 



^- 2. 

 ■2. H. cornu gigantcum Chcmnitz. 



T, perrorata, tenuiuscula, minute et irregulariter oblique 

 sculpta, rugulosa , sub epidermide castanea vel olivacea, decidua 

 pallide rufescens; spira vix elevata*anfr. 4 rapidissime accrescen- 

 tes, ultimus permagnus, ad peripheriam costis nonnullis vix ele- 



