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Lingulodinium machaerophorum var. machaerophorum
Lingulodinium machaerophorum var. machaerophorum. Autonym. Holotype: Deflandre and Cookson, 1955, pl.9, fig.4.
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Original description: [Deflandre and Cookson, 1955, p. 274]:
Hystrichosphaeridium machaerophorum
Shell globular, subsphaerical or ellipsoidal with a rigid membrane, more brittle than deformable, covered with numerous long, stiff, conical, pointed processes resembling the blade of a dagger. Surface of shell granular or punctate.
Dimensions: Diameter of shell 41-54 µm, length of spines 13-18 µm, overall diameter, 64-74 µm.
The figured type represents an average form as regards the number of processes and their density. Examples with more widely spaced processes are rare; on the contrary specimens with morenumerous and more densely arranged spines are relatively frequent. Generally most of the spines are stiff but sometimes they are somewhat flexible and recurved. The apices are very sharpely pointed abnd often twisted in specimens mounted in Canada balsam.
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Original description: [Deflandre and Cookson, 1955, p. 274]:
Hystrichosphaeridium machaerophorum
Shell globular, subsphaerical or ellipsoidal with a rigid membrane, more brittle than deformable, covered with numerous long, stiff, conical, pointed processes resembling the blade of a dagger. Surface of shell granular or punctate.
Dimensions: Diameter of shell 41-54 µm, length of spines 13-18 µm, overall diameter, 64-74 µm.
The figured type represents an average form as regards the number of processes and their density. Examples with more widely spaced processes are rare; on the contrary specimens with morenumerous and more densely arranged spines are relatively frequent. Generally most of the spines are stiff but sometimes they are somewhat flexible and recurved. The apices are very sharpely pointed abnd often twisted in specimens mounted in Canada balsam.