Manchester Memoirs, Vol. xli. (1897), No. 7. 



3 



I dwelt upon the specialised nature of the forms. Already 

 one has had cause to modify that opinion. Of the 50 to 

 60 species then described as novelties, more than 20 have 

 already been found in Mr. Townsend's dredgings, thus 

 extending their range. Of these we may mention, as being 

 especially abundant, the following : Rissoina pachystoma, 

 R. epentroma, Marginella mazagonica, Tellina lechrio gramma, 

 and Engina zea. Pyrgulina callista, P. Edgarii, and Seila 

 bandovensis have also occurred, and Phasianella minima. 



A few of the following new forms were dredged by 

 Captain E. R. Shopland, at Karachi, or off the Mekran 

 Coast, and we also include a Columbella (C . Cartwrighti) , 

 collected by Capt. Cartwright, R.N., from this same region. 



It now only remains for me to briefly tender my best 

 thanks to Sir Rawson W. Rawson, K.C.M.G., for kindly 

 forwarding for my inspection Mr. Townsend's MS. lists, 

 with valuable notes of locality, and for giving me informa- 

 tion thereupon ; to Mr. Hugh Fulton, for many notes and 

 specimens bearing on the results of the examination of 

 this collection at, and comparison with the stores of, the 

 British Museum of Natural History; and especially am I 

 under a great debt of obligation to Mr. G. B. Sowerby, 

 F.L.S., of Fulham Road, London, whose notes on most 

 of the species now to be described have been of the 

 greatest possible value, and they nearly all have passed 

 through his hands. 



Now also, as on many other occasions, must I render 

 thanks to Mr. Edgar Smith for much help and assistance; 

 and finally, and here I speak not only for myself, but for 

 all interested in the geographical distribution of Marine 

 Mollusca, much gratitude is due to Mr. F. W. Townsend, 

 for it is too rarely that such exceptional advantages as 

 those possessed by him, as chief executive officer with 

 regard to the Telegraph Cable, are grasped at, at all 

 events so thoroughly and enthusiastically. 



