PROCEEDINGS OF THE MALACOLOGICAL SOCIETT. 3 



1. "On Nautilus, recent and fossil," by G. F. Harris, F.G.S,, &c. 



[abstract]. 



The author gave a brief account of the anatomy and habits of Nautilus, 

 with esjiecial reference to N. po/npilius, Linn., in the course of which the 

 siphuncle of that species was desciibed in some detail. After aUuding to 

 Brooks' remarks ' on the structure of the siphuncle the author stated that 

 from an examination of several specimens in which that part was well pre- 

 served, he was prepared to acquiesce in the views of the American author, 

 except in a few minor particulars. These exceptions, with some additional 

 observations, may be summarised as follows : — The inner conchiolin tube 

 does not rest immediately against the inside of the spiculous sheath, there 

 being a small sj^ace between the two ; this is not due to contraction of 

 the conchiolin tube, as the author at first suspected might be the case, but 

 existed when the animal was living. This conclusion is based on the fact 

 that there are, so far as can be ascertained, no impressions of the ends of 

 the spicultB to be found on the surface of the conchiolin layer. In the 

 specimens examined, a greater portion of the spiculous layer was observ- 

 able not covered by conchiolin, near the shelly portion of the funnel, than 

 is shown in the figure accompanying Mr. Brooks' paper. The funnels in 

 question were old ones, apparently of about the same age as the one 

 depicted in that figure. 



2. " Note on the distribution of Geomalacus macidosiis, Allman, in 

 Ireland," by Dr. E F. Scharff. 



3. "On the habitat of the genus J^phippodonfa, Tate," by E. H. 

 Matthews, communicated by the Secretary. 



4. On the occurrence of Cijclostrema niillepunctatum, Friele, in the 

 British Seas," by G. W. Chaster. 



Mr. G. F. Harris exhibited specimens of Nautilus in illustration of 

 his paper. 



Dr. Scharff exhibited li\ang examples of Geomalacus maculosus from 

 the South -West of Ireland. 



The Secretary, on behalf of Mr. Matthews, exhibited specimens in 

 spirit and shells of Ephippodonta lunata and E. MacDotigalli, with 

 specimens of the shrimp Axius plectorhynchus, Strake, and its burrow, 

 in which the Epliippodonta is found ; all from South Australia, 



Mr. F. W. Wotton exhibited specimens of Tsocardia cor from the 

 Isle of Man, Galway, Dundrum Bay, off the Smalls (St. Brides Bay), 

 and the Bay of Biscay. 



Mr. W. Crouch exhibited a spirit specimen of Ahera hullata, taken 

 in the river Crouch, Essex. 



Mr. J. B. Bosevear exhibited living examples of Ortlialicus zebra 

 from the Barbadoes. 



Dr. G. "W. Chaster exhibited the specimens of Cijclostrema mille- 

 punctatum from off the Isle of Man, alluded to in his note. 



1 Henry Brooks' " Preliminary Remarks on the Structure of the siphon and funnel 

 oi Nautilus Fomjjilius/^ Proc. Boston Soc. Nat. Hist., vol. xxiii., part ill. (188S), 

 p. 380, et scq. 



