258 



1893. Natica [Neverita) wintlei, Tate, Trans. Koy. Soc. South Aust. 

 vol, xvii. pt. 2, p. 322. 



1895. Natica wintlei, Tate and Dennant, Trans. Roy. Soc. South Aust. 



vol. six. pt. 1, p. 112. 



1896. Natica wintlei, Pritchard, Proc. Roy. Soc. Vict. vol. viii. n.s. p. 112. 



Shell narrower than in N. hamiltonensis, the spire is relatively 

 more elevated, and the aperture is not so broad ; suture clearly- 

 marked ; posterior callosity of the aperture well developed ; 

 umbilicus small in adults, furnished with a funicle narrow in the 

 early stages of growth and becoming relatively broader with 

 age, bounded anteriorly by a deep sulcus. 



Dimensions. — Length 25 mm.; breadth 21 "5 mm.; length of 

 aperture 17 mm. 



Form, and Loc. — Eocene : Tasmania and Victoria. 



83983. Examples of the neanic stage of growth ; from Table 

 Cape. Purchased. 



G. 9411. Two specimens ; from Table Cape. Purchased. 



G. 9412. Variation in which the funiculus is broad at its 

 confluence with the inner margin of the aperture ; from Spring 

 Creek. Purchased. 



Natica COnica, Lamarck. 



1838. Natica conica, Lamarck, Deshayes, Hist. Nat. Anim. sans Vert. t. viii. 



p. 632. 

 1886. Natica [Mamma) conica, Tryon, Manual of Conchology, vol. viii. 



p. 44, pi. xviii. tigs. 76-7. 



Shell solid, spire conical; whorls compressed near the suture; 

 aperture semilunate ; umbilicus partly covered by a callous 

 extension confluent with the inner margin of the aperture, and 

 also by the spreading of the thick posterior callosity. Both in 

 the young and the adult the umbilicus is frequently filled with 

 these callous extensions. 



Bimensio7is. — Length 31 mm. ; breadth 22-5 mm. ; length of 

 aperture 20 mm. 



Form, and Loc. — Post-Pliocene : Western Australia and Victoria. 



97721. Two specimens ; (? locality), Western Australia. 



H. Y. L. Broivn Coll. 



G. 5667. Examples of the neanic and ephebic stages of growth ; 

 from Limestone Creek, Glenelg river. Purchased. 



i 



