Stklfox — List of Land and Freshwater Mollusks of Ireland. 1 07 



being much more slender than those 

 met with in others. The largest speci- 

 mens I have seen come from the 

 Dublin and Wicklow Mountains, near 

 the Scalp. 



Phytia myosotis (Drapamaud).' 



Alexia denticulata, Scharff, Irish Nat., 

 p. 149, 1892. 



WD ED LD AN 



FE TY AE 00 

 WMSL LE MO 



EM EO CV LH 

 WCNGLF WHME 



SG KG KD DU 

 CL NT QC CW WI 



NK LK ST KK WX 

 SK MC EG WA 

 WC 



llecorded from many localities on the 

 coasts of all four provinces, and almost 

 always met with about high-water mark 

 at the heads of estuaries where a certain 

 amount of alluvial mud is deposited. 

 The var. denticulata ilontagu is rarer 

 than the type, but the two forms often 

 a:rade into one another. 



Oyatella bidentata (Montagu). 



Melatn/pus bidentatus, Scharff, Irish Nat., 

 p. 149, 1892. 



Very discontiiuiously scattered round 



1 This shell, as well as the two following 

 {0. bidentata and 0. Otis), cannot truly he con- 

 sidered either land or freshwater species ; but 

 as Mr. Nichols does not ini-lude them in the 

 "List of the Mai-ine Jlollusca of Ireland" 

 (Proc. E. I. Academy (3), v, No. 4, 1900), it 

 was necessary to include them in the present 

 list. 



our coast-line ; and though sometimes 

 associated with Phytia myosotis, the 



WD ED LD AN 



FE TY AE DO 

 WMSL LE MO 



EM EO CV LH 

 WC NG LF WH BIE 

 SG KG KD DU 

 GL NT QG GW WI 

 NK LK 8T KK WX 

 SK MG EC WA 

 WC 



present species is much rarer and more 

 local, and as a general rule prefers a 

 more marine habitat, occurring under 

 seaweed-covered stones in muddy creeks 

 and estuaries. 



OTINIDAE. 

 Otina otis (Turton). 



WD ED LD AN 



FE TY AE DO 

 WMSL LE MO 



EM EO CV LH 

 WC NG LF WHME 

 SG KC KD DU 

 CL NT QC GW WI 

 NK LK ST KK WX 

 SK MC EC WA 

 WC 



Recorded from the coasts of Clare, 

 West Galway, and West Donegal, and 

 is probably generally distributed along 

 the southern , western, and north-western 

 coast-line. This species, like our other 

 brackish and semi-marine shells, has not 

 been specially searched for by coiicho- 

 logists. 



[P2] 



