liimnaea, sp. 



Two indeterminate specimens of this genus exist in the collec- 

 tion from South Australia ; one an imperfect internal cast from 

 Tertiary beds in Fowler's Bay district, the other a monstrosity 

 from Willunga. S. Y. L. Brown Coll. 



Family AMPHIBOLIDiE. 



Genus AMPHIBOLA, Schumacher. 



[Essai Nouv. Syst. Habit. Testaces, 1817, pp. 58, 190.] 



Ampullacera, Quoy and Gaimard, Voy. de 1' Astrolabe, Zool. 



t. ii. 1832, p. 196, pi. xv. figs. 1-9. 

 Thallicera, Swainson, Malacology, 1840, p. 196. 



The test of this genus -is not unlike an Ampullaria, thoiigh it 

 differs in many essential particulars. It is thick, subglobose, and 

 rugose ; spire somewhat depressed ; outer margin of the aperture 

 with a deep sinus posteriorly ; inner margin callous and expanded ; 

 columella broad and reflected at the base ; umbilicus large. 



Type. — Amphilola australis, Schumacher. 



Amphibola avellana, Bruguiere (sp.). 



1775. Spengler, Beschaftigungeii d. Natur. Freunde, Berlin, 



Bd. i. p. 395, pi. ix. figs. 4, 5. 

 1781. Nerita nnx avellana merito, etc., Chemnitz, Conch. Cab. Bd. v. 



p. 262, pi. clxxsviii. figs. 1919-20. 

 1784. Limax crenata, Martyn, Univ. Conch, pi. Ixix. 



1789. Bulimus avellana, Bruguiere, Ency. Meth. [Vers] t. i. p. 297. 



1790. Helix avellana, Gmelin, Linn. Syst. Nat. ed. 13, p. 3640. 

 1790. Helix crenata, Gmelin, Linn. Syst. Nat. ed. 13, p. 3623. 



1802. Helix avellana, Bosc. Hist. Nat. des Coq. Paris, t. iv. an. s. (1801-2) 



p. 38. 

 1802. Bulimus avellana, Bosc. Hist. Nat. des Coq. Paris, t. iv. an. x. 



(1801-2) p. 92. 

 1817. Amphibola australis, Schumacher, Essai Nouv. Syst. Habit. 



Testaces, p. 190. 

 1832. Ampullacera avellana, Quoy and Gaimard, Voy. de 1' Astrolabe, Zool. 



t. ii. p. 196, pi. XV. figs. 1-9. 

 Ampullaria avellana | Deshayes and Milne Edwards, Lamk. Hist. 

 Ampullacera avellana) Nat. Anim. sans Vert. 1838, pp. 537-41. 

 1840. Thallicera avellana, Swainson, Malacology, p. 196. 



