Spirotrichea
(formerly Karyorelictea): Protocruziida
Protocruzia pigerrima
de Faria, da Cunha and Pinto, 1922
Genus: Ovoid to elongate; dorsal surface has reduced somatic ciliation; ventral with well developed kineties;
peristome apical, 1/3 of the body length; buccal ciliation massively developed; a single
macronucleus (Carey, 1992).
Peristome leads directly into cytostome; covex left side not ciliated ?, but bears bristles;
flat right side ? with 3-5 ciliary rows; perstome begins at pointed anterior end, 1/3 of the body length;
macronucleus simple; contractile vacuole subterminal (Kudo, 1966).
Species:
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Protocruzia pigerrima,
cell body 23 μm long, 15 μm wide,
cytostome 6 μm long,
x 1000, Japan, 199? by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
* Protocruzia pigerrima (Cohn, 1866) da Cunha, 1914:
Very small, 20 μm long;
similar in form to P. adherens (Carey, 1992).
20 μm (da Cunha),
50-60 μm long;
peristome 1/4 - 1/3 the body length (Kudo, 1966).
Protocruzia adherens (Mansfeld, 1923) Kahl, 1930-5:
Ovoid, 60 μm long; buccal region
conspicuous starting at the apex of the cell and occupies at least 1/4 of the body length
(Carey, 1992).
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