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ON" SOME NEW TASMAISTAN MAEINE SHELLS. 



By Eev. J. E. Tenison- Woods, E.G-.S., etc. Corres- 

 23onding Member Royal Society, Tasmania; of Victoria; 

 of Limi. Society, N.S.W. Hon. Member Eoyal Society, 

 N.S.W., etc. 



[Bead 12th November, 1877.] 

 The following shells were placed in my hands for descrip- 

 tion by Mr. W. Legrand, the eminent conchologist of Hobart. 

 They were obtained by the careful researches of Mr. W. F. 

 Petterd, from dredging operations principally in Blackman's 

 Bay. They are (with the exception of a Turbo from King's 

 Island) all small, but of much interest, including a beautiful 

 new species of Crossea. Their general facies is in keeping 

 with the conchology of Tasmania as hitherto known. 



Turbo ( ) cucullata. T. tiirhinato consolida, opaca, 



sordide cdbida badia vel atra phis mmusve maculata vel ustidata ; 

 anfr. 4^, rugosis, vix convexis crebre spiraliter liratis, magis et 

 minoribus cdternantibus, tota testa conspicue creberrime oblique 

 squamato-striata ; liris majoribus in ult. anfr. fere. 12, distanter 

 grayiosis vel squamis elevatis ciicullatis insignitis, sutura impressa, 

 tenuiter canalicidataapertura orbiculari, Integra conspicue marginata, 

 infra, marginem, margaritacea argentea, columella et margine 

 porcellana ; basi convexa, lirata. Long. 24, lat. 18 mil. Habit. 

 King's Island, Bass Straits. W. Legrand. 



A small turbo with large irregular scorched patches on a 

 dirty white ground. It is spirally closely keeled, with small 

 round alternating keels, on the larger of which there are 

 small tubercles or small raised hooded scales. The whole 

 shell is obliquely closely imbricately striate. The mouth is 

 round without any tubercle, and has an outside margin within 

 which there is a very clearly defined line of silvery nacre 

 which lines the throat. It is very rare, and has more relations 

 with the New Zealand or tropical forms than any Tasmanian 

 congener. 



LiOTiA ANNULATA. Tcsta miiiuta, discaidea, superne planata et 

 depressa, alba, opaca, anf. 3, circularibus, regulariter subdistanter 

 lamellose annulatis, interstitiis Icevibus ; apertura Integra, orbicidarij 

 antice producta varicifera ; umbilico omnino aperto. Maj. diam. 

 Ih mil. Hab. Blackman's Bay. W. F. Petterd. 



Shell minute, discoid, flattened and depressed above, white, 

 opaque ; whorls 3, circular, regularly and somewhat distantly 

 ringed with lamellae, interstices smooth, apertui*e entire, 

 orbicular, anteriorly produced, and bearing a varix round the 

 mouth like one of the rings of the spire, umbilicus entirely 

 open. 



I have been long acquainted with this minute shell, but 

 hesitated to describe it until I could find perfect specimens 

 with a true Liotia mouth. I think that even now its generic 



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