STUBBS : LAND AND FRESHWATER SHELLS OF TENBY. 323 



Hyalinia draparnaldi. — Two or three colonies of this species in 

 the neighbourhood. The largest among stones and rubbish lying on 

 a damp corner of the Burrows, beneath the Wreck Field and railway 

 banks. An hour's search in this spot, during the month of January, 

 has produced as many as sixty or seventy fine large specimens. There 

 are also colonies by the gasworks, Mason's coalyards, and in a 

 plantation at the bottom of Heywood Lane. 



H. cellaria. — Abundant ; particularly fond of the Common 

 Alexanders; may be taken in great numbers clustering about the 

 stems and roots. 



Var. complanata. — Occasionally with type. South Cliff, etc. 

 Var. albina. — Not uncommon with the type in various places; 

 shells as a rule are of the clear white form, but sometimes the clouded 

 one has turned up. 



[H. glabra]. — Said to occur at Hoyle's Mouth; perhaps the next 

 species, which is particularly fine there, was mistaken for it. 



H. alliaria. — Common and widely diffused. A large number 

 have been taken from the top of a mossy wall, beneath the railway 

 arches at the bottom of Heywood Lane. A pale and very glossy 

 form has been found under elm logs at Gumfreston. 



Var. viridula. — Fairly common at the roots of long grass on the 

 north side of St. Catherine's rock. 



H. nitidula. — Widely distributed but nowhere very abundant. 

 Shells from the top of St. Catherine's Rock are thinner and not so 

 white round the umbilicus as usual. Specimens from Hoyle's Mouth 

 are much paler than usual. 



H. pura. — Rather scarce. It has been taken at Hoyle's Mouth, 

 etc. 



Var. margaritacea. — Hoyle's Mouth, where it is rather more 

 plentiful than the type. 



H. crystallina. — Not common; sparingly at Hoyle's Mouth, 

 Heywood Lane, etc. 



H. fulva. — A few specimens under stones on Gumfreston Marsh. 



H. nitida. — A large colony on marshy ground in front of Holloway 

 Quarry. After rain they come out in fair numbers to crawl over the 

 wet mud, and the leaves of the yellow Iris. Another colony in a 

 ditch near the Black Rock railway bridge, and in Penally Marsh. A 

 scalariform monstrosity was found at the second-named locality. 



[H. excavata]. — Hoyle's Mouth {fide Chas. Jefferys). 



Helix rotundata. — Abundant, but generally rather small. A 

 curiously twisted and scalariform specimen on the North Cliff. 

 Var. turtoni. — Occasionally with the type. 

 Var. pyramidalis. — Under stones by a ditch at Giltar. 



