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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Protospongia

Protospongia Kent (= Proterospongia)

[ref. ID; 1618]
Stalkness individuals embedded irregularly in a jelly, collars protruding; fresh water. See Sphaeroeca. (ref. ID; 1618)

  1. Protospongia haeckeli Kent (ref. ID; 1618, 3496, 3497), haeckelii Kent (ref. ID; 3517)

Protospongia haeckeli Kent (ref. ID; 1618, 3496, 3497), haeckelii Kent (ref. ID; 3517)

Descriptions

Body oval; six to sixty cells in a colony. (ref. ID; 1618)
The colorless flagellate has a funnel-shaped collar made with a protoplasmic membrane. The flagellum is twice as long as a body without a collar. (ref. ID; 3496)
The cell consists of an oblong body and a funnel-shaped protoplasmic collar. The body usually has a nucleus in the anterior portion, a single contractile vacuole in the central region and some reflexible grains in the entire part. The flagellum is twice as long as a body. (ref. ID; 3497)

Measurements

Body length of 8 um; flagellum 24-32 um long. (ref. ID; 1618)
Length 8-12 um; breadth 4-5 um. (ref. ID; 3496)
Length of a body 6-9 um; height of a collar 4.5-5.0 um; oral diameter of a collar 5.0-7.5 um. (ref. ID; 3497)