BY CHARLES HEDLEY. 



433 



witli cirrhi. In the right hand figure the mantle has been ripped 

 open and the foot amjiutated near the base, to show the branchije, 

 which extend from between the palpi posteriorly almost to the 

 siphon tube. 



TeINOSTOMA STARKEYiE, Sp.n. 



(Fig. 4.) 



Shell glossy, transparent, depressed, perforate. Whorls four, 

 separated by a deeply furrowed opaque suture. Surface smooth 

 and glossy. Aper- 

 ture very oblique, /^. '~\ '"'""^"^^fs^ jI^^^^ ,^i^'^ 



semiovate. Lip 



simple, sharp, 



sinuate. Body 



whorl overlaid b}^ 



a callus. From 



the lower angle of 



the lip a broad fig. 4. 



shelf winds like the thread of a screw into the umbilicus, which 



it almost fills. Major diameter 4; minor 3-25; height 2 mm. 



Loc. — Balmoral Beach, near Sydney. Type to be presented to 

 the Australian Museum. 



This interesting novelty is named in honour of Mrs. C. T. 

 Starkey, who discovered it, and who kindly placed it in my hands 

 for description. 



Mr. H. A. Pilsbry has pointed out (Man. Conch, xi. 1889, p. 

 462) that the following Australian shells described as Ethalia 

 must be transferred to the genus Teinostoma: — 2\ hrazieri, Angas 

 (Proc. Zool. Soc. 1877, p. 39, PI. v. fig. 17); T. tasmanica, T. 

 Woods (Proc. Roy. Soc. Tasm. 1876, p. 146); and T. cancellata, 

 Tate (Trans. R.S.S. Australia, i. 1878-9, p. 139, PI. v. fig. 11). He 

 has since informed me by letter that Neritida lucida, Adams and 

 Angas (Proc. Zool. Soc. 1863, p. 3.5), also belongs to the same genus. 



From these four the species before us differs by its perforation. 

 It belongs to a subgenus, Solariorhis, named by Conrad in 1865 

 (Am. Journ. Conch, i. p. 30), which, according to Dall (Trans. 

 Wagner Inst. iii. 1892, p. 412), contains "species in which the 

 young stages of Teinostoma are perpetuated, and which show 



