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
Leuconia johnstoni Carter, 1871 - A calcareous sponge (Sponge images)
Scroll down and rollover titles to change screen image or click on title to view image.
Calcareous sponge
Leuconia johnstoni
- carefully removed from rock 1

Calcareous sponge
Leuconia johnstoni
- close-up 1

Calcareous sponge
Leuconia johnstoni
- close-up 3

Calcareous sponge
Leuconia johnstoni
- oscule 1

Calcareous sponge
Leuconia johnstoni
- close-up 4

Calcareous sponge
Leuconia johnstoni
- oscule 2

Calcareous sponge
Leuconia johnstoni
- in-situ on rock in pool 1

Calcareous sponge
Leuconia johnstoni
- in-situ on rock in pool 2

Calcareous sponge
Leuconia johnstoni
- habitat / location 1

Calcareous sponge
Leuconia johnstoni
- habitat / location 2

Calcareous sponge
Leuconia johnstoni
- spicules / paired rays 1

Calcareous sponge
Leuconia johnstoni
- spicules 1

Calcareous sponge
Leuconia johnstoni
- spicule 1

Calcareous sponge
Leuconia johnstoni
- spicule 2

Calcareous sponge
Leuconia johnstoni
- spicule 3

Calcareous sponge
Leuconia johnstoni
- spicules 2

Specimen above found in a small pool within a dark, cold tunnel, at middleshore level, at Watermouth Cove Holiday Park (private beach), near Ilfracombe, Devon, 16.06.18.

Spicule complement compared to that of the species featured in "A Revision of the Classification of Calcareous Sponges" by Maurice Burton. Species can be confused with Leuconia nivea and Leuconia gossei.

Species here yet to be verified.

Leuconia johnstoni Calcareous sponge Porifera 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.