212 roebuck: on DENBIGHSHIRE MOLLUSCA. 



An examination of this schedule shows that the unicolor- 



ous or bandless form of var. castanea was much the most 



numerous, and next to it the five-banded form of var. libellula. 



Helix rufescens. One found at Rhos Fynach. 



H. concinna. Not uncommon ; found on the summit and at 

 the foot of the Little Orme's Head, and at Llandrillo. 



H. concinna var. albida. One on the summit of the Little 

 Orme's Head. 



H. hispida. Common by roadsides at Llandudno and Eglwys 

 Rhos, in Gloddaeth woods and on the top of Gloddaeth 

 mountain, in Bodscallan woods, at the foot of the Little 

 Orme's Head, at Llangwystenin, Llandrillo, and Rhos Bay. 



H. hispida var. subrufa. Common at Eglw)7s Rhos. 



H. hispida var. albida. One at Eglwys Rhos. 



H. sericea. Common- at Eglwys Rhos, and in Bodscallan 

 and Gloddaeth woods, also on a wall at Tywyn. 



H. sericea var. albida. One in Gloddaeth woods. 



H. virgata. Abundant everywhere on the Llandudno penin- 

 sula; swarms, with Bulimus aciitus, on the short turf by 

 the sea, also of a larger size on thistles further inland, and 

 ascends to the tops of all the hills ; also at Llandrillo and 

 Llangwystenin. Varies as usual, but to the first glance 

 there are two main forms, the one with black bands, the 

 other almost uniformly white or light-coloured. 



H. caperata. Also everywhere and common, but not so 

 abundant as the last. Also at Llandrillo, Rhos Fynach, 

 Llangwystenin, and one at Llanrwst. 



H. caperata var. ornata. With the type, Great Orme's Head. 



H, rotundata. Another species which occurs commonly 

 and everywhere on the peninsula, also at Llangwystenin, 

 Llandrillo, Bodscallan, Tal-y-Cafn, and Llanrwst. 



H. rupestris. Common on the limestone rocks of the 

 summits of the Great Orme's Head and Gloddaeth moun- 

 tain, and a few found on a limy wall near Bodscallan. 



H. pygmaea. One in the woods at Bodscallan. 



J.C, iv;, July, 1884. 



