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The slender amber snail, Oxyloma sarsii, in Ireland

Maria Long With: Brian Nelson Roy Anderson John Brophy

Atlas of the Land and Freshwater Molluscs of Britain and Ireland (1999) M. Kerney

O. sarsii

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O. sarsii O. elegans

Atlas of the Land and Freshwater Molluscs of Britain and Ireland (1999) M. Kerney

O. sarsii

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Data Deficient (DD)

O. sarsii

O. sarsii (juvenile), Portumna

O. elegans

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4b = O. elegans, 5 = O. sarsii

From: A Field Guide to the Land Snails of Britain and North-west Europe (1979) Kerney and Cameron

O. elegans O. sarsii Mouth shape: Round at bottom Straight at bottom

Shell hgt: 9-12mm high 10-20mm high

Shell sculpture:

Irregular growth lines

Irregular but prominent growth lines

Body colour: Often dark Usually dark

Sutures: Flat Flatter Shell colour: Bright amber Dark amber

O. elegans - ?? O. sarsii - ??

http://www.animalbase.uni-goettingen.de http://www.animalbase.uni-goettingen.de

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Arion vulgaris https://gastropods.wordpress.com/page/5/

http://snailstales.blogspot.ie/2010/11/snail-dissection-in-progress_21.html

Ph: John Brophy

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Ph: John Brophy

Ph: John Brophy

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1

2 3

4

Maps and aerial photos from: Long, M.P. & Brophy, J.T. (2013) Survey, habitat and population assessments of Vertigo geyeri, Vertigo moulinsiana, Oxyloma sarsi and Omphiscola glabra at selected sites. Report to National Parks and Wildlife Service, Department of the Arts, Heritage and the Gaeltacht, Ireland.

1

2 3

4

5

6

7

8 9

5: Ballymacegan – riverbank; Glyceria 6: Portland Park – riverbank; Phragmites, Glyceria 7: Lehinch – riverbank; Glyceria 8: Shannonbridge – ditch with mixed wetland vegetation, incl. Glyceria 9: Ferbane – canal bank vegetation

1: Canal bank and ditch; Glyceria 2: Riverbank vegetation and exposed mud; Phalaris 3: Canal bank and ditch; Glyceria 4: Riverbank, canal, ditch, bare mud; Glyceria

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Banagher bridge

Ordnance Survey Ireland Licence No. EN 0059208 © Ordnance Survey Ireland/Government of Ireland

Shannon Harbour

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Gortachallow

Portland Park

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Threats: • Habitat destruction –

bankside works, marinas, developments

• Water level changes

Red Data Book status:

Proposed classification change from ‘Data deficient’ to ‘Vulnerable’

Ph: John Brophy

Ph: John Brophy

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Vertigo moulinsiana Ph: John Brophy

Ph: John Brophy

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Thanks to:

NPWS (particularly Dr Brian Nelson) - www.npws.ie

BEC Consultants - www.botanicalenvironmental.com

Dr Roy Anderson, and MolluscIreland -

http://www.habitas.org.uk/molluscireland/index.html