Microworld

world of amoeboid organisms

Menu
Turriplaca multicosta
Turriplaca multicosta, after Thomsen, 1978

Turriplaca multicosta (Thomsen, 1978) Nicholls, 2012
basionym Pinaciophora multicosta Thomsen (1978)
(synonym Rabdiophrys multicosta Roijackers and Siemensma, 1988)

Diagnosis: Scales of two kinds. Protoplast unknown. Plate-scales circular, c. 1.5-2.0 µm in diameter, with a broad pattern-less rim. More heavily silicified towards the center of the scale. A less silicified central area is delimited by a circle of small perforations. A number of tiny circular structures (dark in the micrographs) are distributed over the central scale area. Spine-scales 2.5-6.0 µm long and c. 0.8 µm wide at the base. The spine-scale is composed of a long shaft (c. 0.1 µm in diameter) which is distally flattened into a conspicuous bifurcation, proximally abruptly widened into a circular basal plate. A number of curved costae interconnect the two branches of each bifurcation.
Type location: Marine, Dybso Fjord (Denmark). Surface water sample.

Recent posts

Actinosphaeridium spec.

Actinosphaeridium spec. Diagnosis: Cell surrounded by a membranous shell, with an outer mucous layer. Filopodia with granules, sometimes branching. Cell stalked. Ecology: I found this

Read More »

Euglyphidion

Euglyphidion enigmaticum – after Bonnet, 1960 Genus Euglyphidion Bonnet, 196 Diagnosis: Shell hyaline, ovoid, pseudostome circular or slightly elliptical. Shell loosely covered with two types of

Read More »

Leptomyxa spec.

Leptomyxa sp., slowly retracting in response to the light of the microscope Leptomyxa sp. Diagnose: This is a very large amoeba which I found in

Read More »

Zivkovicia spec.

Zivkovicia spec., 200 µm long; the right image is viewed through the aperture Zivkovicia spec.  Diagnosis: Shell pyriform, circular in oral view, with a clear

Read More »

Pontigulasia pentangulostoma

P. pentangulostoma, after Quin et al., 2008 Pontigulasia pentangulostoma Quin et al., 2008 Diagnosis: Shell is brown, laterally uncompressed, parted to neck and body regions

Read More »

Flabellula citata

Flabellula citata, from Dykova et al., 2008 Flabellula citata Schaeffer, 1926 Diagnosis: Length in locomotion 15-75 µm; width 25-55 µm. Shape very variable, from a

Read More »