Protozoa Guide review

Trichosphaerium

genus / TRICHOSIDAE

Description

Trichosphaerium sieboldi Schneider, 1878 Multinucleate marine amoebae occurring as schizonts or gamonts , with characteristics of the the Order . Test of schizont individual s covered with spicules having triangular aspect in cross-section . Nuclear divisions synchronous and occur within the nuclear envelope. Ref. Page (1983), Schaudinn (1899) , Schuster (1976). bLM 1. Calcareous spicules triangular in cross- section . Large amoebae up to 2 mm in diameter ...... Trichosphaerium sieboldi 2. Amebae average 36 1-1m in diameter ...... .. . . .. .. .. .. .. .. .. .. .. .. . Trichosphaerium micrum 3. Calcareous spicules flat and blade-shaped .... .. . . . . . . . . . . . . . . . Trichosphaerium platyxyrum spicules showing triangular shape and hollow center. X94 ,000 . Trichospherium with dense layer of spicules. Apertures can be seen in the test. Scale=10 IJm. Inset: spicules at higher magnification . Scale=1 IJm .

Type species

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Trichosphaerium sieboldi Schneider, 1878
Multinucleate marine amoebae occurring as
schizonts or gamonts , with characteristics
of the the Order . Test of schizont
individual s covered with spicules having
triangular aspect in cross-section . Nuclear
divisions synchronous and occur within the
nuclear envelope. Ref. Page (1983),
Schaudinn (1899) , Schuster (1976).
bLM
1. Calcareous spicules triangular in cross-
section . Large amoebae up to 2 mm in
diameter ...... Trichosphaerium sieboldi
2. Amebae average 36 1-1m in diameter ...... .. . .
.. .. .. .. .. .. .. .. .. .. . Trichosphaerium micrum
3. Calcareous spicules flat and blade-shaped .... ..
. . . . . . . . . . . . . . . Trichosphaerium platyxyrum
spicules showing triangular shape and hollow
center. X94 ,000 .
Trichospherium with dense layer of spicules.
Apertures can be seen in the test. Scale=10
IJm. Inset: spicules at higher magnification .
Scale=1 IJm .