NOTES 295 



The Woodlice of Dumbartonshire. As illustrating what 

 careful and systematic collecting will accomplish, I should like to 

 bring the following instance to the notice of Scottish naturalists. 



Up to the commencement of 191 7 only eight species of 

 Woodlice had been recorded from the county of Dumbartonshire, 

 viz., Trichoiiiscus pygmceus, G. O. Sars ; T roseus (Koch) ; 

 Trichoniscoides albidus (Budde-Lund) ; Haplophthalmus mengii 

 (Zaddach) ; Oniscus asellus, Linn. ; Porcellio scaber, Latr. ; P. 

 pictus, Brandt; and Cylisticus convexus (De Geer). 



On 24th April I received from Miss M. J. Jardine, from 

 Helensburgh, a small collection of these interesting Crustacea, and 

 since then five further collections have followed, which have 

 resulted in adding eleven further species to the county list, and 

 three of these are additions to the Scottish fauna. The complete 

 list for the county is now as follows : 



Trichoiiiscus pusillus, Br. ; pygmceus, G. O. Sars ; and roseus 



(Koch). 

 Trichoiiiscoides albidus (B.-L.), and sarsi, Patience. 

 Haplophthalmus mengii (Zadd.), and danicus, B.-L. 

 Oniscus asellus, Linn. 

 Philoscia muscorum (Scopoli). 

 Cylisticus convexus (De Geer). 

 Porcellio scaber, Latr. ; pictus, Br. ; dilatatus, Br. ; rathkii, 



Br. ; ratzeburgii, Br. ; and Icevis, Latr. 

 Porcellionides pruinosus (Br.). 

 Platyarthrus hoffmannseggii, Br. 

 Armadillidium vulgare (Latr.). 



The total number of species recorded for Scotland is twenty- 

 three. The species not yet found by Miss Jardine are Ligia 

 oceanica (Linn.), a maritime species; Trichoiiiscus spinosus, 

 Patience, and T stebbiugi, Patience ; and Philoscia couchii, 

 Kinahan, the latter also a maritime species. 



There is no reason to suppose that the county of J )umbarton is 

 any richer in species than others, and I shall be very pleased to 

 hear from anyone willing to work out the distribution in other 

 counties, especially those of Caithness, Sutherland, Ross and 

 Cromarty, 'Inverness, Nairn, Elgin, and Banff. Wai/ter E. 

 Collinge, The University, St Andrews. 



p,S. Since writing the above I have received from Mr William 

 Evans examples of Ligia oceanica from the shore at Peaton, east 

 side of Loch Long, Dumbartonshire. 

 J2 2 L 



x 





