80 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



On some Terrestrial Isopods new to the Clyde Faunal 

 Area, and some Notes on the Distribution of the 

 Rarer Species. 



By Alexander Patience. 



[Read 26th June, 1906.] 



The Terrestrial Isopods do not seem to have received much 

 attention from Scottish naturalists. Of the twenty-five species 

 recorded for the British Isles, only ten have been hitherto 

 recorded for Scotland, nine of which have been noted as occurring 

 within the Clyde faunal area. 



The principal contributions to this subject have been made by 

 the late Dr. Robertson, Millport,* and Dr. Thomas Scott, F.L.S., 

 of H.M. Fishery Board, Aberdeen.! But a glance at the following 

 list of Clyde species by Dr. Scott, published in 1901, will at once 

 show that our knowledge of the distribution of most of the rarer 

 species was somewhat limited : — 



Fam. Oniscidae [Ligiidae.] 

 Ligia oceanica (Lin.). — Under stones, &c. ; more or less c. in various 



Fam. Trichoniscidae. 



Trichoniscus pusillus, Brandt. — Cumbrae (R. I, 86) : Rothesay, nr. 



Aquarium (S.). Prob. not unc. if carefully sought for. 

 T. roseus, Koch.— E. Tarbert (S.). 



Fam. Oniscidae. 



Oniscus asellus (Lin.). — Gen. dist. and mod. c. 



Philoscia muscorum (Scopoli). — Widely dist. and not very unc. 

 (R. I, 85). 



Porcellio scaber, Latr. — C. and gen. dist. 



P. pictus, Brandt. — Cumbrae (R.) : Ayrshire (Smith) : nr. Campbel- 

 town, 1896 (S.). 



Cylisticus convexus (De Geer), — Kilwinning 



(Smith, vide R. I, 88) : Lanarkshire : Rothesay (S.). 



Armadillidium vulgare (Latr.). — Mouth of Garnock (Smith, see 

 R. I, 88). 



* Catalogue of the Amphipoda and Isopoda of the Firth of Clyde. Trans. 

 Nat. Hist. Soc. Glasgow, vol. 2, pp. 9-99, 1888. 



+ Brit. Assoc. Handbook of the Natural History of Glasgow, 1901. 

 Isopoda. pp. 335 336. 



