APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Crisilla semistriata (Montagu, 1808) syn. Alvania semistriata - A spire shell (Marine snail images)
Marine snail
Crisilla semistriata
- under rock / lowershore pool 1

Marine snail
Crisilla semistriata
- under rock / lowershore pool 2

Specimens above were found under a rock on the lowershore at Chimney Rocks, Penzance, Cornwall. 21.03.12

Marine snail
Crisilla semistriata
- under rock / lowershore pool 3

Specimens above were found under a rock on the lowershore at Wherry Rocks, Penzance, Cornwall. 22.03.12.

Marine snail
Crisilla semistriata
- under rock / lowershore pool 4

Marine snail
Crisilla semistriata
- live snail with the suctorian ciliate Corethria porcellanum 1

Specimens above were found under a rock on the lowershore at Albert Pier reef, Penzance, Cornwall. 11.02.13 and 08.05.20.

A live example of Vitreolina philippi was found within the aggregation of Crisilla semistriata featured in the top two images here, from Chimney Rocks, Penzance.

Also known as Alvania semistriata (Montagu, 1808).

APHOTOMARINE supports open source data recording and sharing for the benefit of wildlife, recorders, research, science and education. The project recommends the following websites and works with the following bodies and organisations.

Crisilla semistriata Alvania semistriata spire shell marine snail images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.