204 STUDIES OS AUSTRALIAN MOLLUSCA, VIII., 



and though approaching in contour is yet distinct from the 

 Australian shell. 



Following this detei'mination the species was so recorded from 

 New South Wales by Angas*; from Tasmania by Tenison Woodsf; 

 and from South Australia by Tate. J Under this name it was 

 added to the fossil fauna of Table Cape by Johnston, § and 

 expunged by Pritchard.|| 



From a confusion of " trapezia " with " trapezina " it has been 

 catalogued under the latter name from Tasmania by Tate (feMay.^ 

 Area trapezina, Lamk., is a tropical species which, by the mixing 

 of Peron's collection, was, with Area seiJiitorfa and Conus penti- 

 Jicalis, accidentally reported from Tasmania instead of N. W. 

 Australia. 



The Challenger Expedition obtained our shell in Sydney Har- 

 bour. In the Monograph of the Lamellibranchiata of that 

 Expedition it is classified (p. 266) as Area giihernaeulum, Reeve, 

 a Philippine shell. I conjecture that this identification was based 

 on juvenile examples. The discovery of a Philippine species in 

 Sydney Harbour raises a doubt, which Smith appears to allay by 

 throwing suspicion on the habitat originally assigned to A. guher- 

 naculum. There is evidence, however, that it was correct. The 

 species was described immediately after Cuming's return from the 

 Philippines. Both the species Smith values as synonyms are also 

 stated to be Philippine. Gray** regards A. guhernaeulum as a 

 sjaionym of A. japoiiiea, Reeve. Kobeltft records it from 

 Formosa, and Fischer; 1 from the Gulf of Siam. 



Under these circumstances it is reasonable to ask for further 

 evidence before admitting A. guhernaeulum as Australian. Area 



-" Proc. Zool. Soc. 1867, p. 931. 



t Proc. Roy. Soc. Tas. 1877, p. 55. 



+ Trans. Roy. Soc. S.A. ix., 1887, p. 102. 



§ Proc. Roy. Soc. Tas. 1879, p. 41. 



il Proc. Roy. Soc. Vic. viii. n.s. 1896, p. 134. 



"i These Proceedings, xxvi., p. 436. 



** Ann. Mag. Nat. Hist. (2) xix. p. 371, May, 1857. 



ft Conch. Cab. ii. Area, 1889, p. 108. 



Bull. Soc. d'Hist. Nat. d'Autun, iv. 1891, p. 188 of reprint. 



