COLLIER : GENERA AND SECTIONS OF THE PUPININ^. II5 



Genus Pupina Vignard. 

 Section Pupina Vignard. 

 Shell smooth, glossy, channels simple, the lower one like a slit in 

 the rim, the upper one in some cases like a small semi-circular 

 depression in the callus near the insertion of the parietal wall. 

 Section Tylotcechus Kob. and Mlldff. 

 The upper canal formed between a tongue or strong rib on the 

 callus and the edge of the parietal wall, which is sometimes much 

 straightened. 



Section Siphonostyla Kob. 

 The lower canal striking out and ascending the outside, covered 

 with a thickening or callosity. 



Two species, which I have never seen. 



Genus Hargravesia H. Adams. 

 Shell with only the upper channel or slit. 



Genus Moulinsia Grat. 

 {=Registoma Van Hasselt). 

 Shell with only the lower canal, which breaks through the edge with 

 a narrow slit, but is wider below, and often looks like a circular hole. 



Genus Porocallia Mlldff 

 Shell as the next genus Callianella, without any slit, but jwith a 

 small pore or opening behind the mouth-edge. 

 Six species, none of which I have seen. 



Genus Callianella R. B. Newton. 

 Shell without any sUt or channel. 



Report on the Fleetwood Ramble. — Attracted by former accounts of the 

 richness of the molUiscan fauna of this part of the Lancashire coast, it was agreed 

 upon to visit it on August 13th last. Having arrived at Fleetwood we at once 

 crossed over the ferry to Knott End, where an hour or so was spent on the break- 

 water in search of shells. The chief attraction was Acunea testjidinalis, recorded 

 from there as being its southern limit. This we failed to find, but were rewarded 

 with quantities of Purpura lapillus var. imbricata, great numbers of which were 

 depositing their curious egg-capsules under the ledges of rock. A fair number of 

 specimens of C/^?V^« cinertiis {—?narginatiis) were found, as well as specimens of 

 Littorina littorea, L. rzidis, and L. obHisata, the two latter species varying in colour. 

 Patella vulgata was fairly common on the stones, and numerous valves of Cardiiim 

 edule, Scrobicularia plana {=piperata), and Macotna balthica were lying about 

 on the mud flats, where large quantities of Mytilus edulis were noticed also. — 

 J. Wilfrid Jackson [Read befo>-e the Society, September 14, 1904). 



