67 



A Supplement to a List of the Lamelli- 



BRANGH AND PALLIOBRANGH MoLLUSGA OF 



South Australia. 



By Professor Ralph Tate, RL.S., F.G.S. 

 TRead October 2nd, 1888.] 



Such excellent results in conchological pursuits have been 

 gained by some of my friends since the publication of my list of 

 the South Australian bivalves two years ago, that to delay longer 

 making known their discoveries would be undesirable, especially 

 because some of the species are undoubtedly new to science. 



The actual additions are 17 in number, and bring up the total 

 to 187. Seven of them I consider to be diagnostically unknown. 

 An uncertain species of Teredo has, through acquisition of com- 

 plete material, been better defined, and a distinctive cognomen 

 applied to it. The names of two of our fresh-water mussels were 

 inadvertently misapplied. The corrections are herewith made, 

 and a better specific determination is ofiered for a third, and a 

 new one added. 



To the list of species recorded for South Australia, but on in- 

 sufficient data, should be added Cardium donaciforinis reported 

 as collected at Port Lincoln by Harvey ; it is not improbable 

 that Donax cardioides has been mistaken for it. 



The sequence of the additional species in the classification, 

 adopted in the original paper, is indicated by the numerals pre- 

 fixed to the specific names. 



Lamellibranchiata. 



1. Teredo fragilis, Tate, anteaj p. 60. Teredo sp. of Port Creek. 



10«. Panop^a australis, Sowerby, Genera of Shells, Xo. 40, 



fig. 2. Ovate oblong, concentrically wrinkled, wider in 



front, obliquely truncated behind. Rapid Bay (R. H. 



Pulleine); Hardwicke Bay, Spencer Gulf (G. F. Matthetvs); 



also Victoria, Tasmania, New South Wales. 

 18«. Thracia modesta, Angas, Proc. Zool. Soc, 1867, t. 44, fig. 



3, p. 908. Small, ovate, posterior side vertically truncate. 



Tapley Shoal (Matthews and McDougaU); also New South 



Wales. 

 18&. Ccelodon patulus, Tate, antea, p. 60. Wool Bay, St. Vincent 



Gulf, in ten fathoms (Matthetvs and McDouyall); Spencer 



Gulf, off Kangaroo Island (8, Aust. Mus). 



