Marshall. — Additional Fossils from Target Gully. 



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Art. XXXVIII.- — Additional Fossils from Target Gully, mar Oamaru. 



By Professor P. Marshall, M.A., D.Sc., Professor of Geology, 



Otago University. 



[Read before the Otago Institute, 5th December, 1916 ; received by Editors, 30th December, 

 1916 ; issued separately 7th December, 1917.] 



In a paper written in 1914 a list was given of all the species of Mollnsca 

 that had been found at Target Gully. The total number of species then 

 obtained was 155. A number of additional species has been obtained since 

 then, of which the following is a list : — 



Subemarginula intermedia Reeve. 

 Trochus chathamensis Hutton. 

 Heliacus variegatus Gmelin. 

 Circulus helicoides Hutton. 

 Triphora lutea Suter. 

 Seila bulbosa Suter. 

 Anachis pisaniopsis Hutton. 

 Ampullina carinata Hutton. 

 Natica australis Hutton. 

 Epitonium zelebori Dunker. 

 Turbonilla prisca Suter. 

 Eulima obliqua Hutton. 

 Rissoina emarginula Hutton. 

 Fusinus climacotus Suter. 

 Megalatractus maximus Tryon. 

 Vexillum fenestration Suter. 



Vexillum marginatum Hutton. 

 Siphonalia caudata Q. & G. 

 Euthria callimorpha Suter. 

 Cominella ordinatis Hutton. 

 Ancilla papillata Tate. 

 Marginella fraudulenta Suter. 

 Erato neozelanica Suter. 

 Drillia costifer Suter. 

 Surcula pareoraensis Suter. 

 Bathytoma albula Hutton. 

 Tunis regius Suter ? 

 Mangilia pukeurensis Suter. 

 Mangilia praecophinodes Suter. 

 Mangilia dictyota Hutton. 

 Mangilia gracilicostata Suter. 

 Hemiconus ornatus Hutton. 



The Trivia n. sp. mentioned in previous lists is T. avellanoides Tate. 

 Mitra n. sp. is M. armorica Suter. There is also a new variety of Veneri- 

 cardia intermedia. 



There are also new species of the following genera : — 



Vermicularia. 



Marginella. 



Besanconia. 



Tornatina. 



Sveltia. 



Basilissa. 



Eglisia. 



Cyclostrema. 



Eulima (two n. sp.). 



Rissoina. 



Merica. 



Drillia. 



Fusinus. 



Latirus. 



Surcula. 



Chione. 



Streptochetus. 

 Phos. 



Odostomia (two n. sp.). 

 Cuna. 

 Barnea. 

 Loripes. 



Calyptraea maculata (Q. 

 & G.) n. var. 



These make an additional 57 species, which added to my previous list 

 of 155 species makes a grand total of 212. In addition Professor Park 

 has found several species, which raises the total to 220, of which 72 species 

 are Recent— that is, 30-3 per cent. 



This collection is of special interest, for it is the first time that the small 

 species have been collected in beds of such a low Tertiary horizon in New 

 Zealand. Hutton has stated that the Pliocene is distinguished from the 

 Miocene in New Zealand by the presence of the following genera : Trophon, 

 Columbella (Anachis), Turricula (Vexillum), and Mytillicardia (Cardita).* 



Macleay Mem. Vol. Linn. Soc. N.S.W., 1893, p. 35. 



