442 



PULMONATA — STYLOMMATOPHORA 



CHAP. 



Genera of doubtful position : Strohilops^ Ampelita^ Pedino- 

 gyra^ Polygyratia^ Macrocydi%^ Solaropsis. 



Fam. 6. Orthalicidae. — Radula, p. 233. Shell external, 

 large, bulimoid. Single genus, Orthalicus ; subg. Liguus^ Por- 

 pliyrohaphe^ Corona. 



Fam. 7. BuUinulidae. — Radula, p. 233; jaw, p. 211; shell 

 usually external. Genera : Bulimidus (incl. Plecochilus^ Goni- 

 ostomus^ Drymaeus., Liostracus, Otostomus^ JVavicula^ Scutalus^ 

 Peronaeus^ Eiirytiis^ Pudioptus^ Plectostylus^ 3Ie- 

 semhrinus^ Mormus^ etc.; Thaumastus^ Nesiotis)^ 

 Placostylus (incl. Charis)., Amphidromus^ Partida, 

 Calycia (?), P eltella Qdimradl limaciform, shell inter- 

 nal), Pellicida^ Ampliihulimus (incl. Simpuloj)sis'). 

 Fam. 8. Cylindrellidae. — Radula, p. 233 ; 

 shell many whorled, long turriculate, last whorl 

 often detached, apex often truncated (Fig. 169, 



p. 260). Eocene . Genera: Cylindrella 



(with sections Callonia^ Thaumasia)^ Leia, 



Fjg. 296.— Odon- 

 tostomus pan- 

 tagruelimis 

 Moric, S. 

 Brazil. x 4 



Macroeeramus^ Pineria. 



Fam. 9. Pupidae. — Radula, p. 233; shell 

 external, spire usuall}^ long, aperture often narrowed, more or 



less toothed, often with internal lamellae. Carboniferous . 



Genera: Anostoma (Fig. 154, p. 248), Hypselostoma (Fig. 202 a, p. 

 302) ; Anastomopsis (Cretaceous), LycJinus (Cretaceous), Boysia, 

 Odontostomus (incl. Tomigerus)., Bulimmus (incl. 

 Petraeus^ Nap>aeus.^ Zehrina^ Mastus^ Chondrida^ 

 Ena.^ and perhaps Bachis^ Paehnodus., Hapalus^ 

 and others). Pupa (incl. Torquilla, Piqjilla, 

 Sphyradium., Leucoehila., etc.), Zospeum^ Ve7'tigo^ 

 3Iegaspira.f Strophia^ Holospira., Euealodium 

 (incl. Coelo centrum^., Coeliaxis., Perrieria^ Balea; 

 Billya (Eocene), Clausilia (with many sub- 

 genera), Bhodina (?). 



Fam. 10. Stenogyridae. — Radula, p. 234 ; 

 shell long, spiral, shining, more or less trans- 

 lucid, apex blunt, sometimes decollated. Eo- 

 cene . Genera: Stenogyj^a (subg. Bu7nina, 



Obellseus., Opeas., Melaniella^ Spiraxis.^ Leptinaria., 



JVothus., Subidhia^ Glessula')., Ferussacia (subg. Cionellaj Azeca'), 



Caecilianella (subg. Greostilbia'). Achatina (shell large, ventri- 



FiG.297. — A,CTaM- 

 silia crassicosta 

 Ben., Sicily; B, 

 Clausilia maca- 

 rana Zieg., Dal- 

 matia; B', clau- 

 silium of same. 



