42S MR. E. A. SMITH ON SHKLLS FROM ADEN. [June 6, 



220. Mactra decora, Deshayes. 



jjab. ? {Beshayes and Reeve); New South Wales (TFeiw- 



kavff) ; Assab and Berbera {Caramagna) ; Mergui {Martens). 



With this species I have no hesitation in uniting M. jickelii of 

 WeinkaufF from Massowa on the coast of Abyssinia. 



221. Mactra fauroti, Jousseaume. 



M. fauroti, Jousseaume, Mem. Soc. Zool. France, 1888, vol. i. 

 p. 200. 



Hab. Aden {Jousseaume). 



The shell figured by Wpinka\ifiF (Conch. -Cab. Mactra, \)\. 19. 

 figs. 5, f), 7) as 31. pulchra. Gray, evidently belongs to the present 

 species. 



222. Mactra (Meropk) ^gyptiaca, Chemnitz. 

 Hab. Red Sea {Chemnitz) ; Ceylon {Reeve). 



223. Cardium rugosum, Lamarck. 



Hab. Madagascar, Red Sea, Eist Africa, Ceylon, North Australia, 

 Philippines, &c. 



224. Cardium rubicundum, Reeve. 

 Hab. Zanzibar. 



225. Cardium setosum, Redfield. 

 Hab. China, Philippines. 



226. Cardium australis, Sowerby. 



Hab. South Africa, Mauritius, China, Australia; Assab? {Cara- 

 magna). 



227. SoLEN truncatus, Wood. 



Hab. Ceylon: XA&w {Jousseaume'). 



Both in the ' Conchologia Iconica ' and in the ' Conchylien- 

 Cabinet,' Sowerby is given as the author of this species. This is 

 incorrect, as part 32 of Sowerby's ' Genera of Recent and Fossil 

 Shells,' which contained the account of So/en, did not ap[jear until 

 1829, whereas this species had already (1825) been figured by Wood 

 under the name of Solen truncatus. Sowerby's ' Genera ' was not 

 published in 1820-25 as appears on the titlepage, tor reviews of 

 Numbers 29, 30, and 31 appeared in the 'Zoological Jourriai,' 1828, 

 vol. iii. p. 284, and in Loudon's ' Magazine of Natural History,' 

 vol. i. (1828) p. 56, vol. ii. (1829) p. 50. I am not aware when 

 the VFork was completed, but I dare say it could he ascertained by 

 searching for reviews of it. Unfortunately, the original covers of the 

 Numbers were only dated in a few instances; for example. Number 

 xxxiii. is dated 1st March, 1831, Number xxxv. 30th April, 1831. 

 In the text relating to Purpura, published in Part 42, reference is 

 made to Gray's genus Pallia, described in the ' Zoology of Beechey's 



