50 Mr. A. Bell on the Fauna of the Upper Terttartes. 



rietj is exceedingly well preserved, as, indeed, it is in all 

 the species into which red or purple enters as part of the 

 colouring. Pecten polymorphus^ Phasianella, Pleurotoma 

 IcBvigata^ and some of the Trochi may serve for examples. 

 Hydrobia ulvce, Penn., and var. suhumhilicata, Mont. 

 {Assiminea Grayana^ Leach (?). On the authority of Mr. 

 Sowerby. I have not seen it.) 

 f^Bissoa cimex, L. (moderately common). Ranges from 

 South Spain to the JSgean Sea. 



costata, Adams. 



* costulata, Alder. 



* lactea, Michaud. Nearest habitat, Channel Islands. 



" Our rarest Rissoa,^^ Jefir. 



membranacea, Adams. 



* , var. venusta, Phil. 



-, var. elata, Phil. 



parva, Da Costa, and var. interrwptaj Adams. 



* punctura, Mont. (Jeffreys). 



striata^ Adams. 



striatulaj Mont. There are but two other localities 



in Britain recorded for this exquisite shell, — Largs and 

 Lochgilphead. 



Turritella terehra^ L. (non Lam.) = T. communis^ E-isso. 



Scalaria communis ^ Lam. (very rare). 

 *Aclis unica^ Mont. 



Odostomia acuta, Jeffr. 



conoideay Broc. 



pallida, Mont. 



plicata, Mont. 



* [Chemnitzia) lactea, L. Is also a Belfast fossil. 



( ) indistincta, Mont. 



* ( ) suturalis, Phil. 



* ( ) rufa, Phil. 



Natica catena, Da Costa. 



Alderi, E. F. 



'^Adeorhis suhcarinatus, Mont. Is also an Irish fossil. 



Cerithium reticulatum, Da Costa. 



Purpura lapillus, L. 



Buccinum undatum, L. 



Nassa incrassata, Strom. 



reticulata, L. 



* nitida, Jeffr. 



Murex erinaceus, L. 

 ^Lachesis minima, Mont. Much larger than the recent 



British forms. 

 ^Defrancia reticulata, Renier. 



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