A Rocha Portugal Observatory Report 2009-2010

APPENDIX I
A Rocha Portugal Observatory Report 2009-2010 21
List of species (Gastropoda + other)
+ found just once; o - occasional (2-10); c - common (11-100); n - numerous (>100)
Site 4a 5a 5b 6a 6b
Species Month I II II I II III I II III I II III I II III
1. Acmaea virginea o o o
2. Alvania lactea o o
3. Bela oceanica o
4. Bittium reticulatum n n n n n n n n n n n n n n
5. Calyptraea chinensis o o c o o
6. Cerithium vulgatum o o o o c o o o o c
7. Conus mediterraneus o
8. Cyclope neritea + o + o n o o
9. Diodora italica +
10. Eulima glabra +
11. Euspira pulchella o + o o o
12. Gibbula umbilicalis c o o o o o c c o c o c
13. Gibbula umbilicaris o
14. Haminoea navicula c o c o o
15. Hydrobia acuta n n n n
16. Hydrobia neglecta n n n n n n n n n n
17. Hydrobia ulvae n n n n n n n n n n n n n n
18. Jujubinus striatus o c c c o c o o o
19. Littorina neritoides o o
20. Littorina saxitilis o
21. Manzania crassa o o o
22. Mesalia mesal o o c c c c n c c c c
23. Monodonta lineata + + o + o o o o o o o
24. Nassarius pfeifferi c c c c o o + c + c c c
25. Nassarius reticulatus o o
26. Ocinebrina aciculata o o o o o
27. Ovatella myosotis c c c
28. Patella ullysiponensis +
29. Pusilina marginata o
30. Retusa truncatula o o c c o c
31. Rissoa cinilis o
32. Rissoa decorata o
33. Rissoa eulacea o
34. Rissoa membranacae c c o o o o
35. Rissoa multicincta c c
36. Tornus subcarinatus o o
37. Turbonilla acuta c o o
38. Turbonilla lactea o o
39. Turbonilla sp. o c o o
40. Lepidochitona cineraria (Polyplacophora) o
41. Dentalium sp.(Scaphopoda) o