'i02 LAND AND FEESH WATER SHELLS OF OXFORP. 



Succinea Pfdfferi. Equally common with tlie above, of whicli it seems to 

 be a mere variety. 



Bulimus Lackamensis. " Stokenchurch ;" Norman in " Zoologist." 



obscurus. Woodeaton, Botley road, Stonesfield, &c.; but nowhere 



veiy plentiful. 



Zua lubrica. Headington Quarry, Woodeaton, &c. Common. 



Azeca tridens. One in Headington Quarry; all that I have seen. 



Achatina acicula. At the roots of grass, in Headington Quarry. 



Pupa umhilicata. Common on walls ; Woodeaton, FeiTy Hinksey, &e. 



marginata. Abundant on grass in Headington Quarry. 



Juniperi. Headington Quarry, in great plenty; the young are covered 



with a calcareous coating, like Bulimus obscurus. 



Vertigo edentula . Woodeaton, Headington Quarry, Stow Wood; but rare 

 in all localities. 



pusilla. Abundant on a wall at Woodeaton. 



Balcm perversa. Wall at Woodeaton, with the above, and under the bark 

 of willow trees. 



Clausilia hidens. Stow Wood ; rare. Two specimens near Handborough. 



dubia. Stow Wood. 



■ nigricans. Common on walls and under stones. 



Carychium minimum. Wytham, Godstow, Stow Wood ; in wet moss. 



Limneus auricularius. Common in the Isis, and very fine. 



pereger. Ditches; canal, &c. Very common. The variety acutus 



also common. River in Port Meadow, &c. 



stagnalis. Abundant, and very fine. Also the variety L. fragilis. 



— palustris. Near Godstow, Iffly, &c. Abundant. 



. glaber. Ditch near Kennington; rare. 



truncatulus. On mud by the river. Common at Iffly and Godstow. 



Amphipeplea glutinosa. One specimen taken from a ditch at South Hinksey. 

 All that I have seen, though I have often vainly searched for it. 



Velletia lacustris. Ditch between the Botley road, and Medley Lock; ditch 

 communicating with the CherweU behind Summertown. 



Ancylus Jluviatilis. On A. eygneus at Ferry Hinksey ; stream near Wood- 

 eaton ; river Ouse, near Buckingham. 



Physa fontinalis. Common on water lilies ; Godstow, Ferry Hinksey, &c. 



Apilexus hypnorum. Ditch at Cowley, in tolerable abundance ; but I have 

 not seen it elsewhere. 



Planorbis corneus. Common. Very fine in a ditch in Port Meadow. 



albus. Rather rare. Ditch communicating with the CherweU 



near the footpath leading to Water Eaton. 



carinatus. Ponds and ditches. Common. Animal pale in colour. 



marginatus. Ditches. Very common. Animal black, or nearly so. 



-. vortex. Ponds and ditches. Very common. 



