ROEBUCK MEMORIAL NUMBER. 









IRELAND. 











Connaught. 





Munster. 













N.K. 



S.E. 





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Records in italics 

 require confirmation. 



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00 



00 





I 





40 





B. leachii 



Viviparidae 



47 

















AS 







Paludina contecta 

 P. vivipara 



Valvatidae 



26 

 42 





















34 35 36 37 



38 39 40 40 



41 



42 43 44 45 46 46 47 



48 





Valvata piscinalis 



121 







41 



42 '.'.'. 44 45 46 46 ... 







V. macrostoma 

 V. cristata 



2 

 94 



34 35 36 37 



38 39 40 40 















Assemaniidse 

















Assemania grayana 

 Pomatiidae 



3 



























Cyclostoma elegans 



46 















Aeieulidae 





36 ... 



38 39 





42 46 ... 47 



48 





Acme lineata 

 Neritidae 



42 



34 35 36 ... 



38 39 40 40 



41 



42 43 44 







Neritina fluviatilis 



Dreissenidae 

 Dreissena polymorph a 

 Unionidae 



62 

 38 



























Unio pictorum 

 U. tumidus 



44 















38 





38 39 ... 40 





44 45 46 46 47 





48 



Marg. maigaiitifera 



60 



34 35 36 ... 



38 40 



41 









Anodonta cygnea 

 A. anatina 



86 















54 







Pseudanodonta sp. 

 Cypenidae 































Sphserium rivicola 

 S. corneum 



32 



34 35 36 37 



38 39 40 40 



41 



42 43 44 45 46 46 ... 



48 





131 





40 40 



41 



42 ... 44 ... 46 46 ... 







S. lacustre 

 .S. pallidum 

 Pisidium amnicum 



93 



34 



... ... 40 40 



41 



42 43 44 45 46 46 ... 







95 



34-35 36 37 



38 39 40 40 



41 



42 43 44 ... 46 46 47 





48 



P. casertanum 



113 



36 ... 



40 40 



41 



42 43 44 







P. henslovvaniim 



64 



34 ... 36 ... 



38 39 40 40 



41 



... 43 44 45 46 46 47 





48 



P. hibernicum 



fiS 



36 37 



38 39 40 40 



41 



... 43 





48 



P. lilljeborgi 



26 



34 35 36 .. 



38 39 40 40 



41 



42 43 44 45 46 46 47 





48 



P. milium 



100 



34 35 36 37 



38 39 40 40 



41 



42 43 44 45 46 46 47 





48 



P. nitidum 



108 



34 35 36 ... 



38 39 40 40 



41 



... 43 ... 45 ... 46 47 



48 



48 



P. obtusale 



90 





. 40 





... 43 44 







P. parvulum 



:^0 



... 35 36 ... 



38 39 40 40 



41 



42 43 44 45 ... 46 ... 



48 



48 



P. personatum 



88 



36 ... 



38 39 40 40 



41 



... 43 44 45 ... 46 ... 



48 



48 



P. pulchellum 



49 



34 35 36 ... 



38 39 40 40 



41 



42 43 44 45 46 46 ... 



48 



48 



P. subtruncatum 



P. supinum 



P. tenuilineatum 



Total species 163 



112 

 21 

 4 



56 70 81 38 84 79 61 95 



100 84 73 81 80 87 75 66 55 68 



