Microworld

world of amoeboid organisms

Menu
Euglypha brachiata Charles Krebs
This beautiful image was made by Charles Krebs. It’s really amazing how he could make this micrograph with an “ordinary” light microscope. (Photo published with his permission).

Euglypha brachiata  Leidy 1879
  
Diagnosis: Test elongate, slightly constricted near the center, in cross-section round; fundus somewhat acute; pseudostome terminal bordered by a double row of 6-7 dentate scales; neck ornamented with 2-7 long recurved spines, arising from scales situated among the 3 rows adjoining the aperture; spines sometimes ribbon-shaped; body scales circular or sub-circular; nucleus large, placed posteriorly; cytoplasm and filopodia normal.

Dimensions: Leidy (1879): 104-128 µm long, Wailes (1915): 92-120 µm long, 30-37 µm wide, aperture 12-15 µm wide, spines 60-65 µm; my measurements 138 µm long.

Ecology: submerged sphagnum, sediments.

Remarks: This species has been confused with E. acanthophora by Penard (1902) and others. However, I own an original slide, mounted by Penard, with the label Euglypha brachiata Leidy non Penard (see below):
  
Euglypha brachiata
 
Euglypha brachiata

This shell is present in the Penard-mount above. It was collected in Lakehurst, New Jersey, by Wailes.

Euglypha brachiata

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 »