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Chytroeisphaeridia simplica
Chytroeisphaeridia simplica, Wall, 1965
This name was not validly published in Wall, 1965, since that author did not provide a Latin diagnosis, even though he acknowledged it was a living species.
Farr et al., 1986, incorrectly stated that this species name was an illegitimate species name and that the author (not Reid, 1977 as given by them but Wall, 1965) referred the species to an extant species.
Harland, 1981, and Lewis et al., 1984, considered this species to represent the encysted stage of Protoperidinium conicoides (Paulsen, 1905) Balech, 1974.
Holotype: Wall, 1965, p.308, figs.7, 20
Locus typicus: Aquarium, Woods Hole Oceanographic Institution
Stratum typicum: Recent
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Original description: [Wall, 1965, p. 308]:
Description:
The test is sphaerical to ovoid, smooth and dark brown. The test may be single-layered and thin-walled, or double-layered and thicker; the outer cell wall layer is then thicker than the inner. A six-sided trapezoidal, (?)intercalary archaeopyle is present sometimes. It is a relatively large, being equal in size to approximately the cell radius. The protoplast contains numerous refractive grana.
Dimensions:
Test 50-54 µm.
This name was not validly published in Wall, 1965, since that author did not provide a Latin diagnosis, even though he acknowledged it was a living species.
Farr et al., 1986, incorrectly stated that this species name was an illegitimate species name and that the author (not Reid, 1977 as given by them but Wall, 1965) referred the species to an extant species.
Harland, 1981, and Lewis et al., 1984, considered this species to represent the encysted stage of Protoperidinium conicoides (Paulsen, 1905) Balech, 1974.
Holotype: Wall, 1965, p.308, figs.7, 20
Locus typicus: Aquarium, Woods Hole Oceanographic Institution
Stratum typicum: Recent
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Wall, 1965, p. 308]:
Description:
The test is sphaerical to ovoid, smooth and dark brown. The test may be single-layered and thin-walled, or double-layered and thicker; the outer cell wall layer is then thicker than the inner. A six-sided trapezoidal, (?)intercalary archaeopyle is present sometimes. It is a relatively large, being equal in size to approximately the cell radius. The protoplast contains numerous refractive grana.
Dimensions:
Test 50-54 µm.