[Proc. Roy. Sue. Victoria, 26 (N.S.), Pt. I., 1913.J 



Aii'i'. V. — On I^atica tasmanica, Tenison- Woods, and 

 description of a New Species of Nat lea. 



BY 



G. B. PRITCHARD, D.Sc, F.a.S., 



AND 



J. H. GATLIFF. 



(With Plate VIl.)- 

 [Read 8th May, 1913. J 



When making out the Catalogue of the Marine Shells of Victoria 

 we included Natica tasmanica, T. Woods, l in the synonymy of 

 Natica didyma (Bolton m.s.), Chemnitz, and also cited as synonyms 

 A. arnpla, Philippi, N. hiclor, Philippi, and N. chemnitzii, Recluz 

 (non Pfeiffer), and xV. lamarckiana, Recluz, and gave other refer- 

 ences. 



We had previously obtained specimens of N . tasmanica, T. Woods, 

 from Dr. J. C. Cox, and Miss Lodder, named N . didyma, Bolten, 

 obtained in New South Wales and North-West Tasmania. 



The original description of N. tasmanica by T. Woods^ is as 

 follows : — " iV. shell, with a somewhat covered umbilicus, depressedly 

 orbicular, thick, with a short but slightly exsert spire; whorls con- 

 vex, rounded, smooth, or obliquely thickly and most minutely 

 striate, aperture semilunar, horizontal, columella somewhat thin, 

 with a prominent callosity, which is spirally sulcate, umbilicus 

 angula'rly excavate; with a kind of callosity within the suture at the 

 mouth; pale fulvous or whitish, banded with brownish or orange 

 lines; base white, chestnut or fulvous within." 



In the National Museum, Melbourne, three specimens were set out 

 on a card as N. tasmanica, T. Woods, dated January, 1877, and 

 numbered 35315-7 locality, Hobson's Bay, and are duly entered 

 under that name in the museum register. They answer to the above 

 description. The Curator, Mr. Kershaw, informs us that at about 

 that time the Rev. J. E. T. Woods examined their Australian shells 

 and assisted in their identification, and probably the name was fur- 

 nished by him. 



1 Proc. Roy. Soc. Victoria, 1900, vol. xii. (n.s.), pp. 191, 192. 



2 Proc. Roy. Soc. Tas. for 1875, pp. 148, 149. 



