31 



THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[NINTH SERIES.] 



No. 2. FEBRUARY 1918. 



XVI. — Descriptions of Thirty-four Species of Marina 

 Mollusca from the Persian Gulf, Gulf of Oman, and 

 Arabian Sea, collected by Mr. F. W. Townsend. By 

 James Cosmo Melvill, M.A., D.Sc. 



[Plates IV. & V.] 



The last general descriptive paper, based upon Mr.Townsend's 

 large collection*, was published in October 1912*, and since 

 then I have only essayed a revision of the Turridas (Pleuro- 

 tomidpe) f as well as the Terebridje \ of the Persian Gulf 

 region, the long continuance of the world-war having natu- 

 ral I v prevented much apportionment of time to this task. 



But now, with the following thirty-four additions to the 

 fauna, one feels the work is almost completed. The total 

 number enumerated cannot be very far short of two thousand, 

 and this includes, roundly speaking, six hundred new to 

 science. Should circumstances permit, it would be ultimately 

 desirable to give a brief, up-to-date catalogue of the whole 

 series, with " addenda, emendanda, and corrigenda." 

 Doubtless several omissions have occurred, some due to 

 inadvertence, others through paucity of material or poor 

 condition of specimens. 



* Troc. Make. Soc. Lond. vol. x. 1912, p. 240 sqq. 



t Ibid. vol. xii. 1917. pp. 140-201. 



t Journ. of Conch, vol. xv. 1917, pp. 188 & 204. 



Ann. dk Mag. N. Hist. Ser. 9. Vol. i. 10 



