OF CONCHOLOGY. Do 



Annales des Sciences Naturelles, Zoologie. V. series. VIII. July 

 and August, 18G7. 



Recherches sur la Salive et sur les Organes Salivaires du 

 Dolium galea. By Messrs. S. de Lucca and P. Panceri. 



It appears, from these researches, that Dolium galea possesses 

 in its salivary fluid from three to four per cent, of sulphuric acid ! 

 and that its presence has been equally detected in various other 

 Mediterranean species, Tritonium, Cassis sulcosa, Cassida?*ia, 

 Murex, Aplysia, etc. 



Observations sur quelques points de V Histoire Naturelle des 

 Cephalopodes, By M. P. Fischer. (Continued.) 



Contains interesting particulars of the methods of capturing 

 and eating their prey, and their mode of progression. 



With regard to the nourishment, Dr. F. found that the shells 

 of Cardium edule eaten by Octopus vulgaris, preserved entire 

 margins, and exhibited no marks of abrasion. He observed 

 that the mollusk was swallowed, entire, and in a variable length 

 of time, but not exceeding an hour, the shell was rejected. He 

 gave a large specimen of Peetunculus glycimeris to an Octopus, 

 which was duly swallowed, and the shell rejected in three-quar- 

 ters of an hour, the valves separated but perfect. Now the valves 

 of Peetunculus not only join perfectly on the edges, but are 

 rendered still more impervious by their projecting, close, pilose 

 epidermis. Moreover, the strength of man is unable to over- 

 come the resistance of their retractor muscles and open the shell 

 without the aid of a sharp instrument. The inference is that 

 the victim is speedily asphyxiated upon being swallowed ; indeed, 

 the evidence that such is the fact is very strong, for a crab 

 taken from a Cephalopod, immediately after being swallowed, 

 was already dead, although certainly uninjured. Plunged im- 

 mediately into sea-water, it did not respire ; only the posterior 

 members made very feeble tetanic movements. 



Mollusques Nouveaux, Litigieux ou Peu Connus. By M. J. R. 

 Bourguignat. Pan 5th. Nov., 1865. With plates 20—28. 



The species contained herein were noticed by me on their first 

 publication in Guerin's Magasin de Zoologie. 



Nouvelles Miscellanees Malacologiques. By M. Paladilhe. Part 1. 

 February, 18G6. (With 1 plate). 



We have already noticed the species herein described, upon 

 their first publication in Guerin's Magasin de Zoologie. 



