JOURNAL OF CONCHOLOGY. 367 



SHELLS COLLECTED AT LLANDULAS, 



NORTH WALES, DURING A BRIEF VISIT IN 



AUGUST LAST. 



By EDWARD COLLIER, M.C.S. 



[Read before the Conchological Society] 



In August last I paid a brief visit to Llandulas, and, 

 although, I only collected shells on two days, I managed to 

 secure 29 species and varieties. I have no doubt more would 

 have been found if I had made a longer stay. They were all 

 obtained within a mile of the village church, and that in only 

 one or two directions. If I had had time to have gone further 

 up the valley, or have explored some of the woods on the hill 

 side, I have no doubt I should have found a few more species. 

 Llandulas is situated on the limestone, and there are some 

 extensive quarries worked there. The slugs I did not collect. 



1. Limnaea peregra. — Common in the small stream which 



runs down not far from the church. 



2. Ancylus fluviatilis. — Very plentiful in the stream along 



with Z. peregra. 



3. Zonites cellarius. — Common. 



4. Z. glaber. — In a dark wood by the road-side not far 



from the village. I have always found this species 

 in very shady places, never having found it with- 

 out plenty of cover. 



5. Z. alliarius. — Common. 



6. Z. alliarius var. viridula. — One specimen only. 



7. Z. nitidulus. — Not very common. 



8. Z. purus. — Rare. 



9. Z. crystallinus. — Not common. 



10. Z. fulvus. — One specimen only — under a stone by the 



road side. 



11. Helix acuieata. — Six specimens under stones in a sm 



plantation. 



12. H. aspersa. — Generally distributed; very plentiful under 



stones amongst bushes close to the sea. 



