BY R. TATE AND W. L. MAY. 45S 



Radula lima, T. Wds.=i/ewrt mulflcostata. 



Rupellaria hrevis= Venerupis brevis, is not Australian. 



Saxicava aitstralis, Lk.=»S. arctica. 



Semele decora, A. Ad.: wrongly assigned; doubtfully Australian. 



„ Warhiirtoni, T. Wds., is probably exotic. 

 Spisula similis, Gray, belongs to N. Australia. 

 Tellimya anomala, Lodder, apud AngSi^--^ My sella anomala. 

 Teredo navalis [Linn.], T. Wds. : sp. and gen. indeterminate. 

 IHmoclea \_=C1iione^ australis. 

 Triyonia acuticostata, non McCo)^=7'. margaritacea (juv.). 



,, dubia, Sow. : wrongly assigned to Tasmania (G. B. 

 Sowerby in litt.). 

 Venerupis attenuata, Reeve, Mon., f. 7 : attributed to Tasmania, 

 by Paetel; not knoM^n. 

 ,, brevis, Q. & G. : wrongly assigned to Australia. 



Ventricola gallinufa=^Chione gallinula. 



Class Palliobranchiata. 



Muhlfeldtia \=Kraussina^ Atkhisoni. 



,, [= J/6(/er /^7^a] Lamarckiana. 



Terebratella \==Terebratulina^ cancellata : not yet known. 



,, [Magasella] Cumingi. 



,, rubicitnda : not Tasmanian, introduced with oysters. 



{teste W. F. Petterd). 



V. — Critical Remarks on sOxMe Species and Diagnoses of 

 TWO new Species. 



MuiiEX laminatus, Petterd {Trophon). 



Spire-whorls four, medially angulated, the anterior half with a 

 keel on the periphery and another half-way to the front suture, 

 crossed by close-set imbricating lamellae whieh are raised into 

 scales as they cross the keels. Pullus of one and one-half whorls,, 

 smooth, glossy; anterior part of last turn somewhat planulate, 

 then rounded and becoming angulated on the posterior ridge, 

 ending flatly atop — the whole plug-like. 



