Speight. — The Tertiary Beds of the Trelissick Basin. 



355 



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2. 



*Psammobia lineolata Gray 

 * stangeri Gray 



Sella huttoni Sut. 

 *Serpulorbi& sipho (Lanik.) 



Siphonalia costata (Hutt.) 

 *— dilatata Q. & G. 

 * — mandarina (Duclos) 

 * — nodosa (Mart.) 



- orbitu Hutt. 

 turrita Sut. 



- sp. 

 *Siphonium planatum Sut. 

 *Stephopoma nucleogranosum Verco 



Struthiolaria cincta Hutt. 



cingulata Zitt. 



- obesa Hutt. 



■ spinosa Hect. 



■ tuberculata Hutt. . . 



Surcula antegypsata Sut. 



— hamiltoni (Hutt.) . . 

 semi nuda Sut. 



*Tellina eugonia Sut. 

 * — - glabrella Desh. 



Terebra costata Hutt. 



Teredo heaphyi Zitt. 

 *Thais succincta (Mart.) . . 



Trivia zealandica T. W. Kirk 



Trochus avarus Sut. 



circinatus Hutt. 



nodosus Hutt. 



* tiaratus Q. & G. 



Turbo etheridgei T. -Woods 



granosus (Mart.) . . 



superbus Zitt. 



Turritelia ambulacrum Sow. 

 — — ■ bicincta Hutt. 



cavershamensis Harris 



concava Hutt. 



murrayana (Tate) . . 



patagonica Sow. 



* rosea Q. & G. 



* symmetrica (Hutt.) 



* Vermr icardia difficilis (Desh.) 



difficilis benhami (Thomson 



pseutes Sut. 



purpurata (Desh.) . . 



Volvtospina liuttoni pseudorarispina 



Sut. 

 *Zenatia acinaces (Q. & G.) 



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I have compared this list with that published by Marshall in connection 

 with the Target Gully beds, near Oamaru,t and find that there is a 

 general similarity in fossil-content to the beds in the Trelissick Basin ; 

 but, of course, some forms are missing from each list. This discrepancy 

 may be due to insufficient collecting, or to absence of the fossils, or to 

 a difference in time allowing for some forms to become extinct. The 



fP. Marshall, Cainozoic Fossils from Oamaru, Trans. N.Z. Inst., vol. 47, 1915, 

 p. 378. 



12* 



