32 



ON SOME NEW TASMANIAN MAEINE SHELLS. 



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

 pondiug Member Eoyal Societies, Tasmania, Victoria, 

 N.S.W. ; Linn. Society, N.S.W., etc. 



\_Tliird Series. Bead 9tJi A^pril, 1878.] 



Tlie following new and very interesting species were, for 

 tlie most part, collected by tlie Rev. H. D. Atkinson, and, 

 witli few exceptions, at Circular Head. An accurate know- 

 ledge of tbat fauna has long been a desideratum, and science 

 may be congratulated on having such an industrious and 

 painstaking collector as Mr. Atkinson settled there. A few 

 other species are from different collectors, as noted at the 

 end of each diagnosis. The list shows the si^read of the 

 eastern Australian coast fauna into N, Tasmania ; w^hile in 

 the new sj^ecies the recognised Tasmanian molluscan facies 

 is not materially departed from. 



New Genus, Iosepha. 



Shell bucciniform, variegated, covered with a periostraca, 

 spire short, acute, last whorl large, ventricose, with a pos- 

 terior depressed groove at the suture producing a contraction 

 at the lip, columella with one cons]jicuous plait. 



This shell is a ComineUa with a plait. It is very rare, 

 small, and has its station on shallow rocks about Bass' Straits 

 and North Tasmania. I only know of one species. 



Iosepha. nov. (jen. Testa Cominellce simiUima, scd plica 

 una consjpicua sujpra columellam insignita. 



Iosepha tasmanica. n.s. 1. 1. ovato fusiformi, jjarva, solida, 

 opaca, carnea et albida ; anfr, nucleo i7icIuso, 7 convexis, 

 angidatis, regidariter costatis et covonatis, regidariter, concinne 

 striatis, striis distantihus, su]). cost, transeunt. ; costis elevatis 

 rotiindatis, siqoerne sidco consjncuo hiteruptis ; nucleo (2 anf.) 

 Icevi. inflato ; apertura ovata, postice attenuata, lahro tenui, 

 acuto ; columella conspicue uniplicata, retro canalicidata ; hasi 

 concava, spiraliter lirata. Long. 10, lat. 4i, long, apert 5, 

 lat. 2i mil. Hab. N. Tasmania. W. Petterd, Loutit Bay, 

 W. Kershaw, King's Island, T. D. Smith, Kent's Group, 

 ditto. 



Shell ovately fusiform, small, solid, opaque, flesh color 

 and white, whorls, including the nucleus, 7, convex, angular, 

 regularly ribbed and coronate, regularly and neatly striate, 

 striae distant, and passing over the ribs, which are raised, 

 rounded, and interrupted above by a conspicuous groove; 

 nucleus of two whorls, smooth, inflated ; aperture ovate, at- 

 tenuate posteriorly ; labrum thin, acute, columella conspi- 



