Radiolarian Collection

Acrosphaera radiolarian, SEM
Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Acanthophracta, radiolarians
Coloured lithograph by Ernst Haeckel from Kunstformen der Natur, 1899-1904. Date: 1904

Plate 22 Elaphospyris Spyroidea from Kunstformen der Natur (Art Forms in Nature)
5615739 Plate 22 Elaphospyris Spyroidea from Kunstformen der Natur (Art Forms in Nature) illustrated by Ernst Haeckel (1834-1919) by Haeckel

Colour SEM of Podocyrtis cothurnata, a radiolarian
Radiolarian. Coloured scanning electron micrograph (SEM) of the test (skeleton) of a Podocyrtis cothurnata, a type of radiolarian protozoan

Radiolaria models
Models of two radiolaria made in papier mache by Vaclav Fric

Computer art of radiolarians (from Ernst Haeckel)
Radiolarians. Computer-enhanced engraving of radiolarian species. These one-celled protozoan animals are found in marine plankton

Dorataspis diodon, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Aulacantha scolymantha, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Actinomma asteracanthion, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Eucyrtidium cranoides, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Actinophrys sol, heliozoan
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Heliosphaera actinota, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Eucecryphalus schultzei, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Spongosphaera streptacantha, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Aulosphaera elegantissima, radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Radiolarian
A glass model of a radiolarian, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Coloured SEM of Podocyrtis mitra, a radiolarian
Radiolarian. Coloured scanning electron micrograph (SEM) of the test (skeleton) of a Podocyrtis mitra, a type of radiolarian protozoan

Radiolarian, SEM C014 / 4862
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian, SEM C014 / 4863
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell or test of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolaria, light micrograph C014 / 4672
Radiolaria. Collection of light micrographs showing various different species of radiolaria. Radiolaria (or radiolarians) are amoeboid protozoa that produce intricate mineral skeletons

Radiolarian model
Galls model of radiolarian by Blaschka, held at the Natural History Museum, London

Radiolarian planktonic protozoan, SEM
Radiolarian protozoan. Coloured scanning electron micrograph (SEM) of the shell (test) of an unidentified radiolarian protozoan

Lychnocanium radiolarian, SEM
Lychnocanium radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Lychnocanium sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Amphisphaerina radiolarian, SEM
Amphisphaerina radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Amphisphaerina sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Acrosphaera radiolarian, SEM
Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian, light micrograph
Radiolarian, differential interference contrast micrograph. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolaria, light micrograph
Radiolaria. Light micrograph of various radiolaria. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian, SEM
Radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Radiolarian skeleton, artwork
Radiolarian skeleton. Computer artwork of the skeleton (test) of a radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton

Marine protozoa shells, SEM
Marine protozoa shells, coloured scanning electron micrograph (SEM). The shells (tests) seen here include those of foraminifera, as well as coral spicules, radiolarian tests and cocccoliths

Radiolarian shell, light micrograph
Radiolarian. Light micrograph of a fossilised radiolarian shell. Radiolaria are single-celled protozoans that are found in marine plankton. They have a silicate skeleton

Hexastylus radiolarian, artwork
Hexastylus radiolarian, historical artwork. Radiolaria are single-celled protozoans that are found in marine plankton. This radiolarian has a spherical silicate skeleton with pores through which

Protozoa - Radiolarians (x20) Actinopoda
JC-291 Protozoa - Radiolarians (x20) Actinopoda John Clegg Please note that prints are for personal display purposes only and may not be reproduced in any way

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Radiolarians, a fascinating group of marine microorganisms, are known for their intricate and beautiful skeletal structures. One such example is Acanthophracta, a genus that displays an array of spiky arm-like extensions. These delicate structures serve as both protection and feeding apparatus for the organism. Another captivating species is Acrosphaera radiolarian, which can be observed under scanning electron microscopy (SEM). The SEM images reveal the intricate details of its spherical skeleton, showcasing the complexity and diversity within this group. Dorataspis diodon is another remarkable radiolarian species with a distinctive appearance. Its body resembles a spiked ball or hedgehog, providing it with defense against predators in its aquatic habitat. Aulacantha scolymantha is yet another stunning radiolarian species characterized by its long needle-like spines. These protrusions give it an ethereal appearance as they extend outward from its central body. The artistic representation of Elaphospyris Spyroidea in Ernst Haeckel's Kunstformen der Natur showcases the beauty and intricacy of these organisms' skeletal structures. Plate 22 captures the elegance and symmetry found within nature's creations. Actinomma asteracanthion stands out among other radiolarians due to its star-shaped skeleton adorned with numerous spines. This unique morphology allows Actinomma asteracanthion to capture prey efficiently while also providing protection against potential threats. While not strictly classified as a radiolarian but rather a heliozoan, Actinophrys sol deserves mention for its striking appearance. With numerous slender pseudopodia extending from its central body like rays of sunlight, this organism truly lives up to its name "sun animalcule. " Heliosphaera actinota exhibits an extraordinary combination of circular patterns on its spherical shell along with radial spikes emanating from each patterned section. This species showcases the intricate designs that they are capable of creating.