Cucurbitella

Cucurbitella Penard, 1902 (ref. ID; 3567, 3686, 3693 original paper)

[ref. ID; 1618]
Test ovoid with sand-grains, not compressed; aperture terminal, circular, surrounded by a four-lobed annular collar; cytoplasm grayish, with zoochlorellae; nucleus large; one to many contractile vacuoles; pseudopodia numerous, digitate; fresh water. (ref. ID; 1618)

[ref. ID; 1923]
Shell transversely circular or rarely elliptical, with a short, annular neck. Aperture partially closed by a transverse diaphragm. (ref. ID; 1923)

[ref. ID; 3686]
Shell dark grey; ovoid; composed of agglutinated siliceous grains and plates; aperture terminal, circular and irregularly serrated, surrounded by a three- or four-lobed collar. (ref. ID; 3686)

  1. Cucurbitella mespiliformis Penard, 1902 (ref. ID; 1618, 1923, 2109, 2238, 3693 original paper) reported year? (ref. ID; 3595)
  2. Cucurbitella minutissima Bonnet, 1960 (ref. ID; 2467 original paper)

Cucurbitella mespiliformis Penard, 1902 (ref. ID; 1618, 1923, 2109, 2238, 3693 original paper) reported year? (ref. ID; 3595)

Descriptions

In the ooze or on vegetation in ponds and ditches. (ref. ID; 1618)
Shell ovoid; aperture small, irregularly serrated, surrounded by a 3- or 4-lobed neck with undulating margin. Protoplasm containing green symbiotic chlorellae. Nucleus with a large central nucleole. Pseudopods numerous. Habitat ooze of ponds and lakes, and aquatic vegetation. (ref. ID; 1923)

Measurements

115-140 um long; diameter 80-105 um. (ref. ID; 1618)
Length 116-140 um. (ref. ID; 1923)