270 JOURNAL OF CONCHOLOGY. 



Bulimus acutus Miill. This species has no mucous glands 

 and no dart-sac. But it possesses a single, attenuated, 

 accessory organ similar and somewhat similarly situated to 

 that in H. Cantiana. Moquin-Tandon calls this a simple 

 mucous gland, an interpretation which can scarcely be 

 correct. 



Helix sericea Miill. (not Drap.)=77. granulata Alder, pi. x., 

 fig. 5 has no immediate connection with the dart-bearers 

 and only finds mention here because it is still often supposed 

 by continental conchologists to have a dart. Figure 5 fi-om 

 a Christchurch specimen is given to show the simplicity of 

 its organisation m the absence of accessory organs. 



To numerous correspondents who have aff'orded most 

 valuable aid by forwarding examples for the purposes of these 

 papers, I must return sincere thanks. Especially am I under 

 obligation to Mr. J. W. Taylor, of Leeds, and Mr. J. H. Ponsonby, 

 of London, both of whom have been indefatigable in procuring 

 living specimens from various parts of the country. 



The following errors should be corrected : — 

 Introductory Section. — For ' Gener. des Gaster,' read 



' Gener. des Gaster.' 



Under H. Pisana. — For ' wormfbrmig,' read ' wurmformig.' 

 The figure of dart of H. nemoralis, pi. vii., fig. 4, should be 



quite straight. 



Christchurch, December, 1884. 



Astarte borealis. — I have received amongst other shore 

 shells from the beach at Warkworth, Northumberland, a valve 

 of this shell with a very fresh epidermis. Its condition re- 

 sembles that of specimens taken from a fish's stomach. — R. D. 

 Darbishire. 



J.C, iv., Jan., 1885. 



