lOURNAI. OF CONCHOLOGY, VOL. l6, NO. 6, JUNK, I92I. 



IRELAND, 



Name OF Species 



Records in italics 

 require confirmation. 



Ulster. 



Leinster. 



J < 



o Z 

 Q < 



,>> O 



r- '^ O •- 



t, O I J 



Q t4 



U 



^ cy U^ 



r^ 00 oi C5 O ■— ' 





13 14 15 16 17 18 

 ... 14 15 16 17 is 



19 20 21 



'.'.'. '.'.'. 21 



13 14 15 16 .. 



19 ... 21 



14 ... 16 ... IS 

 14 15 ... 17 .. 



19 20 21 

 ... 20 21 



B. leachii 



Viviparidae 

 Paludina contecta 

 P. vivipara 



Valvatidae 

 Valvata piscinali.s 

 \'". macrostoma ... 

 V. cristata 



Assemaniidse 

 Assemania graya. 



Pomatiidse 

 Cyclosto. elegans 



Aciculidse 

 Acme lineata 



Neritidse 

 Neritina fluviatilis 



Dreissenidae 

 I), polymorpha 



Unionidae 

 Unio pictorum ... 

 U. tumidus 

 Marg. margaritif. 

 Anoiionta cygnea 

 A. anatina 

 Pseudanodontasp. 



Cyrenidse 

 Sphaerium rivicola 

 S. corneum 

 S. lacustre 

 S. pallidum 

 I'isidium amnicum 

 P. casertanum ... 

 P. henslowanum 

 P. hibeinicum ... 

 P. lilljeboigi 

 P. milium 

 P. nitidum 

 P. obtusale 

 P. parvulum 

 P. peisonatum ... 

 P. pulchellum ... 

 P. subtruncatum 

 P. supinum 

 P. tenuilineatum 



Total species 163 ! 73 94 85 77 75 58 41 71 69 74 



13 14 15 16 17 18 19 19 20 21 

 ... 14 15 .. 17 



13 14 15 16 ... 



13 14 15 16 17 



... 14 ... 16 17 



13 14 15 16 17 



... 14 15 16 ... 



... 14 15 16 17 



13 14 15 16 17 



13 14 15 ... 17 



... 14 



13 14 15 ... 17 



... 14 15 16 ... 



13 14 15 16 17 



18 20 21 



18 19 19 20 21 



18 20 21 



18 19 19 20 ... 

 18 19 19 20 ... 

 18 19 19 20 21 

 18 19 19 20 21 

 ... 19 19 20 21 



18 19 19 ... 21 

 ... 19 19 ... 21 

 IS 19 19 20 21 



24 25 28 29 30 



22 23 24 27 28 29 30 31 32 33 



22 23 24 25 ... 27 28 29 30 31 32 33 



22 23 26 29 



24 27 28 29 ... 31 32 ... 



22 ... 24 25 26 27 28 29 '..'. 



22 23 24 30 ... 32 ... 



22 23 24 25 26 27 28 29 30 31 32 33 

 22 23 24 .. 26 27 ... 29 30 



22 23 24 25 ... 27 28 29 30 31 32 33 



24 25 26 27 28 29 30 31 32 33 



24 25 28 29 30 31 



24 25 26 27 28 29 30 31 32 ... 



22 23 24 25 26 27 28 29 30 31 32 33 

 22 23 24 25 26 27 28 29 30 31 32 33 



22 23 24 25 26 27 28 29 30 31 



24 



22 23 24 ... 26 27 28 29 30 ... 32 33 



... 23 24 27 28 29 ; 32 33 



22 23 24 25 26 27 28 29 30 31 32 33 



90 91 97 75 74 87 84 93 83 71 60 33 



