ROEBUCK MEMORIAL NUMBER 



SCOTLAND 



lands. 



West Highlands. 



N. Highlands. 



Isles. 



93 Aberdeen N. 



94 Banff 



95 Elgin 



w 



to 



97 Westerness 



98 Main Argyie 



99 Dumbarton 



100 Clyde Isles 



101 Cantire 



102 Ebudes S. 



103 Ebudes Mid. 



104 Ebudes N. 



105 Ross W. 



106 Ross E. 



107 Sutherland E. 



108 Sutherland W. 



109 Caithness 



no Hebrides 



111 Orkney 



112 Shetland 



Name of Species. 



Records in italics require 

 confirmation. 



98 99 



03 



98 



99 



03 



99 ■■• 

 ... 00 



00 

 00 

 00 

 00 



00 



05 06 



... 05 06 07 08 



07 08 09 



06 



04 ... 06 



04 



.. 06 

 .. 06 

 .. 06 



09 



06 

 06 



11 



10 



11 .. 



if 



12 



10 11 12 



12 

 12 

 11 12 

 11 12 

 10 11 .12 



10 il 12 

 11 ... 

 11 ... 



B. leachii 



Vivipapidae 



Paludina contecta 

 P. vivipara 



Valvatidae 

 Valvata piscinalis 

 V. macrostoma 

 V. cristata 



Assemaniidse 

 Assemania grayana 



Pomatiidse 

 Cyclostoma elegans 



Aciculidse 

 Acme lineata 



Neritidse 

 Neritina fluviatilis 



Dreissenidse 

 Dreissena polymorpha 



Unionidae 

 Unio pictorum 

 U. tumidus 

 Marg. margaritifera 

 Anodpnta cygnea 

 A. anatina 

 Pseudanodonta sp. 



Cypenidse 

 Sphaerium rivicola 

 S. corneum 

 S. lacustre 

 S. pallidum 

 Pisidium amnicum 

 P. casertanum 

 P. henslowanum 

 P. hibernicum 

 P. lilljeborgi • 

 P. milium 

 P. nitidum 

 P. obtusale 

 P. parvulum 

 P. personatum 

 P. pulchellum 

 P. subtriincatum 

 P. supinum 

 P. tenuilineatum 



Total specits 163 



