406 MR. E. A. SMITH ON SHELLS FROM ADEN. [JuRB 16, 



colour and slightly in form. The labrum in that species is white 

 within and without, and much more strongly transversely striated 

 externally than in the present species. The latter also is a stouter 

 shell, broader across the body-whorl at the shoulder, and consequently 

 the spire is much more acuminate. C. fabula, Sowerby, and C. 

 pardalina, Lamarck, are also allied species. 



41. COLUMBELLA (A-NACHIS) MISERA, SoWCrby. 



Hob. Andaman Islands, Japan, Sandwich Islands. 



"With this species Tryon (perhaps rightly) unites C. zebra, Gray, 

 and C. pacifica, Gaskoin. A shell from the Andaman Islands 

 which I described (P. Z. S. 1878, pi. 50. f. 6) under the name C. 

 nigricosta, I now believe to be the same as C. misera. 



42. CoLUMBELLA (Conidea) flava (Bruguiere). 



Hab. Indian Ocean, Mauritius, Reunion, Seychelles, Singapore, 

 Japan, (fee. 



The Aden shells are of a purplish-brown colour variegated with 

 whitish dots and wavy streaks. The inner dentate portion of the 

 labrum and the columella, with the exception of the upper part 

 which is white, are rose-purple. The epidermis has a somewhat 

 silky appearance and is disposed in longitudinal close-set shreds. 



43. Engina (Pusiostoma) mendicaria (Linue). 



Hab. Red Sea, Zanzibar, Mauritius, Madagascar, Amirantes, 

 Philippines, Australia, Polynesia. Gulf of Akaba, Christmas Island, 

 Mergui Archipelago, Solomon Islands {Brit. Mus.). 



44. Eburna valentiana, Swainson. 



Hab. Red Sea and Persian Gulf. Aden (Jousseaume). 



This is not the Nassa molliana of Chemnitz as supposed by 

 Sowerby ^ and Tryon ^. Chemnitz describes his species in the fourth 

 volume of the ' Conchylien-Cabinet,' pp. 15-18, and figures it on 

 pi. 122. fig. 1119. The shell there depicted is the well-known E. 

 zeylanica. Sowerby evidently never read Chemnitz's text, but 

 appears to have been led into the error through Chenniitz having 

 inadvertently put the name Nassa molliana (p. 13) to figure 1118. 

 On page 6 it is referred correctly to figure 1119. 



45. BuLLiA mauritiana. Gray. 



iTaS. Madagascar (^ray); Aden (Cam»2a^wa). 



I quite agree with Tryon in uniting B. grayi. Reeve, with this 

 species. The beautiful specimens collected at Aden by Major 

 Yerbury are of a Uvid colour, glossy, with the basal carina and the 

 aperture of a dark rich brown, and the spot at the termination of 

 the sutural callus is also deep brown. The largest specimen is 

 52 millira. long, whilst the gigantic example referred to by Reeve 

 under B. grayi, which has been in the Museum fifty years, is 64 

 miUim. in length. 



' Thesaurus Conch, vol. iii. p. 69. ^ Man. Conch, vol. iii. p. 213. 



