TOMI.IN : TirRKK NKW SPECIF.S OF MARGINELI.A. 307 



Alt., 6'5 mm. ; cliam. max., 3"25 mm. 



Hab., Pt. Alfred. 



Type, in my own collection. 



The apex of the specimen figured is slightly defective, and I have 

 not yet seen a perfect example, though the species cannot be very 

 rare at Pt. Alfred. 



Its specific differences have been recognised for some considerable 

 time, but it has hitherto been passing as M. fiisifoniiis Hinds, and is 

 probably so recorded from Port Elizabeth (Crawford) by Smith in 

 Proc. Malac. Soc, Lond., v., p. 364; and from 49 f. E. of Bird Is., 

 by Sowerby in Marine Invest. S. Africa, ii., p. 227. 



The real fusiformis Hinds seems to be a rare species ; there is a 

 single specimen (the type) in the British Museum, and I have six in 

 my own collection which were dredged by A. Adams in the East, but 

 bear no definite locality. It is a very dissimilar shell from M. atradus, 

 being narrowly fusiform with a small narrow aperture not more than 

 half the, length of the shell, whereas in M. atrachis the aperture is 

 nearly fths of the total length. Reeve's figure of M. fusiformis does 

 not represent that species, and Jousseaume has founded his M. n?ii- 

 lineata on it. 



Marginella sutoris Dunker. (Plate X., fig. 7). 



I give a figure of what I believe to be an authentic example of the 

 shell distributed by the Godeffroy Museum under this manuscript 

 name (r/ Proc. Malac. Soc, Lond., xii., p. 300). It is obviously the 

 same species as gibbosa Jouss., and the locality of " South America" 

 must be an error. 



Neritina fluviatilis at Chester. — The absence of this species from Chester 

 is remarked upon by Mr. C. Oldham in his paper on " The I>and and Freshwater 

 Mollusca of Cheshire " (Naturalist, April, 1S96, p. no). It will be of interest, 

 therefore, to record that I have specimens of the species from the canal at Chester, 

 taken in June, 1917, along with Vivipara vivipara. — ■%¥. H. Davies {Read before 

 the Society, June 12th, 1918). 



