179 



ON A NEW MUREX FROM SOUTH AUSTRALIA. 

 By John Brazier, F.L.S., C.M.Z.S., Lond. 



MuREX (PsEUDOMUREx) POLYPLEURUS, Brazier, n.sp. 



Mitrex jmmilus, Angas (7ion Broderip, nee A. Adams, nee Kuster), 

 Molluscan Fauna of South Australia, Proc. Zool. Soc. London, 

 1865, p. 158, No. 6. 



Murex (Ocinehra) pumilus, Bednall (non Broderip, 7iec A. Adams, 

 nee Kuster), Transactions and Proceedings and Report of the 

 Royal Society of South Australia, Vol. viii. p. 66, 1884-5 

 (issued May, 1886). 



Shell strong, small, biconical, imperforate, with 8 distinct 

 longitudinal varices or ribs, crossed by fine transverse lirse, the 

 interstices very finely striated or scab- ^r^v 



rous; whorls 5 to 6 bluntly angulated ; >^?f^s, r\ 



suture slightly impressed, smooth ; %^%^^^^ { \ 



aperture oval, attenuated anteriorly, ^fe^Sl^ \ Q) 



outer lip thickened by the external ^^Rw ^^ 



varix, with 5 to 6 small nodose teeth ^^^ 



within; inner or columellar lip with c.H.,dei. 



one small rounded tooth near the canal ; colour somewhat grey 



or flesh colour. Length, 12; breadth, 6 mm. Mouth: length, 4; 



breadth, 3 mm. 



ZTaS.— East side St. Vincent's Gulf (Angas); MacDonnell 

 Bay, Fowler's Bay (Professor Tate) ; Henley Beach, Semaphore, 

 Aldinga, South Australia (Professor Tate and W. T. Bednall); 

 also Port Lincoln (Bednall). 



This species when found in a living state is very pretty ; some 

 specimens are of a fine pink or flesh colour, others again of a dirty 

 grey. Specimens were forwarded to me some time back by my 

 old friend and correspondent Mr. W. T. Bednall as Murex immilus, 



