Centropyxis aculeata
This is a vent view of a sample of Centropyxis aculeata from an industrial water source. Six of its spine structures can be seen at the 12, 1, 2, 3, 4, and 5 o'clock positions in this image.
Transmitted Oblique Illumination
Scott, DAVID B., FRANCO S. Medioli, and Charles T. Schafer, MONITORING IN COASTAL ENVIRONMENTS USING FORAMINIFERA AND THECAMOEBIAN INDICATORS, Cambridge University Press, p. 112, 2001.
Definition/Function:
Centropyxis aculeata is a rhizopoda of the Order Testacida and Family Difflugiidae. It is a very common Thecamoebian.Significance in the Environment:
In comparisons between the thecamoebian populations in freshwater lakes the presence of a higher proportion of Centopyxis aculeata may indicate a more brackish condition.Characteristic Features:
Centropyxis aculeata is oval with 4-6 spines distal from the vent. It may be translucent to opaque, typically in shades of brown to black.Associated Particles:
References:
Jahn, T. L., HOW TO KNOW THE PROTOZOA, Wm. C. Brown Co. Publ., p. 127, 1949.Scott, DAVID B., FRANCO S. Medioli, and Charles T. Schafer, MONITORING IN COASTAL ENVIRONMENTS USING FORAMINIFERA AND THECAMOEBIAN INDICATORS, Cambridge University Press, p. 112, 2001.
