1904 Wei,ch & STEhiPOx—J/o//iisai of Bushy Park, Dublin, i ?5 



Succinea putris, I^.— A few at the marsh only. 



S. eleg'ans, Risso.— Crawling on the Brook-liine {Veronica Beccabtinga) 



and Water Forget-me-not {Myosotis palustris) at the marsh. In some 



specimens the animal was exceedingly dark. 

 Carychlum minimum, Mull.— Almost every where In damp ground. 

 Limnaea stagrnalis, L. — In the pond below the house. Not common 



on either visit. 

 L. peregrra, Mull. — In pond, marsh, and stream. 

 L. palustris, Mull. — A few in the pond below the house, and in pools 



beside the Dodder just outside the marsh. 

 L. truncatula* Mull. — B3' no means as co.iimon as one would expect 



at the marsh. It is, however, easih- overlooked. 

 Physa fontinaliSf Iv. — Common with Pianorbis albus. Water-fleas, and 



large Ostracoda among Water vStarwort {Callitriche) in the marsh ; 



rare in the pond. 

 Aplexa hypnorum, L. — Swarming, but vcr}' local in the marsh. 



We did not see here Pianorbis spirorbis, which we find so often asso- 

 ciated with this species. 

 Pianorbis carlnatus, Mull. — Nice specimens, rather more typical 



of the text-book shell than many Irish forms referred to this 



species. 

 P. spirorbis, L. — Two or three dead shells only found in the pond 



and at the marsh. 

 P. contortus, L. — With the next species in the marsh. 

 P. albus, Iv. — Abundant, see Physa above. 

 P. fontanus, Lightf. — This rare species was found only very sparingly 



in the pond below the house. 

 Ancylus lacustris, L.— Also rare in the pond. 

 Bythlnia tcntaculata, L.— Common in the pond. 

 Valvata piscinalis, Mlill.— In the pond only, rare. 

 Sphaerium corncum, L.— Not uncommon in the pond. 

 S. lacustrc, Mull.— Seems rare ; a few found in the pond only. 

 Plsldium fontinalc, C. Pfr.— Lives in profusion in parts of the 



marsh ; under stones in a few inches of water, we found from forty 



to eighty specimens. 

 P. milium, Held.— Common at the roots of small water plants. 

 P. pusillum, Gmel.— With the last species in the marsh, but neither 



so plentiful as P. fontinale. 



Though this list contains 62 species, as large a number as 

 the Kerry Conference list of 189S (/.A^., vol. viii., p. 218), yet 

 we do not believe that it by any means exhausts the list of 

 Bushy Park mollusca. Conchologists will miss such species 

 as Limax marginahis, Helix rupestris, and H. aculeata, which 

 we feel sure will reward future search ; and as there are also 

 most suitable habitats for Helix fusca and Acme lineatay they 

 may also occur. In such an old garden, too, one or more of 



