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BioImages: The Virtual Field-Guide (UK)
James, B.L., 1968
The Distribution and Keys to Species in the Family Littorinidae and of their Digenean Parasites in the Region of Dale, Pembrokeshire
Separately bound reprint from Field Studies Vol 2 No. 5 (1968) pp 615-650. A short booklet covering the species, subspecies and varieties of Littorina, plus 22 cercarial (trematode) parasites. Although the distribution information relates to the Dale area, the dichotomous keys are more widely applicable.
| Publisher |
Field Studies Council (FSC) |
| Pages |
46 |
| Coverage |
Keys to adults of the 4 Littorina species, 5 subspecies and numerous varieties, and to their 22 cercarial parasites then known. |
| Illustrations |
Line drawings of shells and pigment distribution in the snails, line drawings of Cercariae. |
| Identify |
With x8 or x10 hand lens (also useful to examine under a Compound Microscope). |
| Specimen Prep. |
Snails: alive or shells; cercariae - under the microscope. |
Malcolm Storey
Taxonomic Scope
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