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Granuloreticulosea: Monothalamida: Amphitremidae

Diplophrys archeri
Barker, 1868

Diplophrys archeri Genus: Test with 2 pseudostomes; with thin, organic test (Illustrated Guide, 1985).
Species: Colonial or solitary; cell body spherical (8-20 μm in diam.), covered with a delicate hyaline membrane; two pseudostomes situated at or near two opposite poles; cytoplasm colorless, transparent, finely granular, filling the envelope (test) except near the two pseudostomes; a single nucleus with a nucleolus; one large, or two or three small, colored, oil-like globules present; pseudopodia extremely attenuate, radiating, straight or dichotomously branced, emanating each pseudostome; reproduction by fission or tetrad division (Cash, J. (1915) the British Freshwater Rhizopoda and Heliozoa, III, p. 145.)


Diplophrys archeri Barker ?, test 16 μm long, pseudopods up to 20 μm long, x 640, near Oh-hashi (large bridge), Asa-kawa (Asa river), Hachioji city, Tokyo, Japan, March 26, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Diplophrys archeri Diplophrys archeri Diplophrys archeri

Diplophrys archeri Barker: Colonial or solitary; cell body spherical (8-20 μm in diam.), covered with a delicate hyaline membrane; two pseudostomes situated at or near two opposite poles; cytoplasm colorless, transparent, finely granular, filling the envelope (test) except near the two pseudostomes; a single nucleus with a nucleolus; one large, or two or three small, colored, oil-like globules present; pseudopodia extremely attenuate, radiating, straight or dichotomously branced, emanating each pseudostome; reproduction by fission or tetrad division
Young cells frequently aggregated into colonies which form circular masses about 30-60 μm in diam. or more; from the perphery of which slender pseudopodia radiate; Cells in a colony about 4 μm in diam., colorless, and transparent except for one dark spot in each (Cash, J. (1915) the British Freshwater Rhizopoda and Heliozoa, III, p. 145.)
Barker (1868) Qrt. Jrn. Micr. Sci. VIII, p. 123; Barker (1869) Proc. Dubl. Micr. Club, I, 3, p. 178.


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