A'ofes and Comments. 



35 



brown twig^s of birch. Figf. 5, larva on g-reen leaves and shoots 

 of Populus nigni. Figs. 6, 7, and 11, larvee on bark covered 

 with bluish-green lichen, probably Physcia pulverulenta. Figs. 

 8 and g, larvae showing the effect of an environment of bark 

 covered with orange lichen, perhaps Physcia parietina combined 

 with P. pulverulenta. Fig. 10, larva showing effect of environ- 

 ment of lichen-covered sticks. All the larvai figured on this 

 plate w^ere from ^'orkshire eggs, obtained from moths captured 

 at Huddersfield and Sledmere by Mr. G. T. Porritt, who gave 

 them to Prof. Poulton for the purposes of his experiments. 



HABITS OF PALUDESTRIXA TAYLORI. 

 Paludestrina taylori first discovered in 1900 in the canal 

 near Fairfield Locks, Droylsden, Lancashire, associated w^th 

 P. jenkinsi, of which species it was at first thought to be 

 a variety. Later in the same year it was taken in a short arm 

 of the Peak Forest Canal at Dukinfield, Cheshire. Messrs. 

 J. W. Jackson and F. Taylor have recently been studying the 

 habits and reproduction of the species, and give the result of 

 their work in the January 'Journal of Conchology.' The 



I and 2, views of the shell : the line between them shows the natural size ; 3, section 

 pf a leaf and eg'g'-capsule attached to it ; 4, view of leaf with emptj- eg-g--capsule attached ; 

 5, leaf with capsule containing a partly-developed embryo; fig's. 3-5 magnified. 



animals were kept in captivity, and were noticed to deposit egg- 

 capsules on the side of the vessel, which were similar to those 

 previously collected on reeds in the canal. The egg-capsules 

 are deposited singly, and are lenticular in shape, horny and 

 transparent. Each capsule has a flat base by which it is 

 attached to objects, and this free portion has a broad, thin, 

 laminated keel. The enclosed egg much resembles a small fig 

 seed. Further details of these interesting observations will be 

 seen in the illustration, for the loan of which we are indebted to 

 the Editor of the 'Journal.' 



1904 February i. 



