Trinema enchelys
Large shell, c. 155 µm long, with several rows of teeth in its pseudostome – Ecuador

Trinema grandis (Chardez, 1960)

Diagnosis: shell ovoid, elongate and hyaline; ventral side in the same plane as the aperture, while the dorsal surface is convex and bulges; test composed of two types of scales: one type large, the other type small, covering the space between the large scales. Aperture oval or circular, sub-terminal and invaginated, bordered by an inner circle of denticulate apertural-plates.

Dimensions: 103 – 134 um long; my measurements: up to 155 µm (Ecuador)

Ecology: in mosses.

Remarks: Distinction between T. enchelys and this species only by their size.

Trinema enchelys
Trinema enchelys
Very large shell from Ecuador, mosses, 155 µm; shell 104 µm
Trinema enchelys
Shell structure
Recent posts

Ditrema spec.

Ditrema spec. Ditrema spec. Diagnosis: Shell as with D. longicollis, but much smaller, surrounded by V-shaped structures that gave it the impression of a star.

Read More »

Rotosphaerida

Pompholyxophrys Pompholyxophrys Pompholyxophrys Rabdiophrys Rotosphaerida Rainer, 1968 Diagnosis: Aciliate predominantly spherical or flattened amoebae from which elongated actin-based filopodia extend; with flat discoid mitochondrial cristae;

Read More »

Centropyxis tabel

Key to Centropyxis species 1 Test in dorsal view circular or almost circular 2 – Test in dorsal view irregular due to various outgrows and

Read More »