202 STUDIES ON AUSTRALIAN MOLLUSCA, VIII., 



by Haddon.* Thence it ranges south down the Gulf of Carpen- 

 taria to Mornington Island, where I collected it in June, 1903. 



The species is usually and wrongly cited as C. concamerata^ of 

 Martini, who described it in 1777, but who was preceded by 

 Davila, d'Herbigny, and Favanne. None of these writers were 

 binomial and worthy of citation. The first to apply a binomial 

 name was Bruguieref. In the following year Gmelin renamed it 

 Area cuculliis.! 



The fossil from Table Cape recorded as 6'. concamerata by 

 Tenison Woods§ is pronounced by Tate|| to be really C. corioensis, 

 M'Coy. But that which Johnston identified^ as C. corioensis 

 from Flinders Island is said by Tate"*^"*^ to be C. concamerata. 



Arca pistachia, Lamarck. 

 Lamarck, Anim. s. Yert. vi. 1819, p. 41. 



This species from King Island, Bass Straits, is described thus 

 by Lamarck : — Shell ovate, decussately striate, outside gray, 

 inside brownish-black, beaks close together, interior striated. 

 Length 21 mm. In the Second Edition (vi. p. 468) Deshayes 

 adds in a footnote that it closely resembles Arca fusca, from 

 which it differs by being smaller and by having the interior a 

 rich dark brown. 



I submit that the above is an excellent pen portrait of the 

 species afterwards described from Bass Straits by E. A. Smith as 

 A. radula.jj Lamarck's " intus fusco-nigricante; natibus proxi- 

 mis " are recognition-marks which distinguish the species from 

 Australian congfeners. 



* Melvill & Standen, Journ. Linn. Soc. Zool. xxvii., 1899, p. 188. 



t Encyclopedie M^thodique, Vers. i. 1789, p. 102. 



JLinn. Syst. Nat. xiii. p. 3311. 



§ Proc. Roy. Soc. Tas. 1875, p. 15. 



II Proc. Roy. Soc. Tas. 1884, p. 212. 



^Geol. Tas. 1888, p. 331. 



** These Proceedings, xxvi. p. 437. 



tt Rep. Chall. Zool.Jxiii. 1885, p. 260, pi. xvii. f. 3. 



