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
Callipallene tiberi (Dohrn, 1881) - A callipallenid sea spider (Pycnogonida images)
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Callipallenid sea spider
Callipallene tiberi
- dorsal view 1

Callipallenid sea spider
Callipallene tiberi
- dorsal view anterior 1

Callipallenid sea spider
Callipallene tiberi
- ventral view 1

Callipallenid sea spider
Callipallene tiberi
- ventral view 2

Callipallenid sea spider
Callipallene tiberi
- ventral view 3

Callipallenid sea spider
Callipallene tiberi
- with 0.1mm division rule 1

Callipallenid sea spider
Callipallene tiberi
- ventral view proboscis 1

Callipallenid sea spider
Callipallene tiberi
- chelifores 1

Callipallenid sea spider
Callipallene tiberi
- ocular tubercule 1

Callipallenid sea spider
Callipallene tiberi
- ocular tubercule 2

Callipallenid sea spider
Callipallene tiberi
- leg / 0.1mm division rule 1

Callipallenid sea spider
Callipallene tiberi
- claw under microscope 1

Callipallenid sea spider
Callipallene tiberi
- claw / under microscope 2

Callipallenid sea spider
Callipallene tiberi
- bryooan covered pot netting 1

Callipallenid sea spider
Callipallene tiberi
- old crab pot / habitat 1

Two dead and dried individuals were found on an old, recently dredged, crab pot at Newlyn Marina, Newlyn, Cornwall, 02.06.17 and 04.06.17. The dry specimens were rehydrated and softened for 24 hours in 50/50 seawater and ethanol before they were examined under a microscope and photographed.

The main body of the specimen in the images above is approx. 1.3mm in length. The measurement taken is from the tip of the proboscis to the tip of the tail.

The crab pot on which the species was found was mainly covered in various bryozoans inc. Cellaria, hydroids (Sertularella and Nemertesia antennina), tunicates and sponges. Probably more than 30 species were present in the netting samples that were taken to look at under a microscope. Achelia echinata was the most common Sea spider present and was quite abundant with over a dozen being found.

Callipallene tiberi callipallenidae callipallenid sea spider pycnogonida 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.