Collotheca annulata, specimen on the leaf of the Java-moss (Taxiphyllum barbieri). In the book of Koste (1978) this morphotype belongs to the "Formenkreis" campanulata. In contrast to Collotheca campanulata s.stricto this morphotype does not built a housing. |
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Collotheca annulata, same specimen still alive after 7 days on the slide. |
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Collotheca annulata, specimen on the leaf of the Java-moss (Taxiphyllum barbieri). The trophi (arrow) try to grab a Lecane hamata-rotifer (arrowhead), which is trying to escape out of the proventriculus. (50mins later the Collotheca had no rotifer inside and the Lecane was swimming in the sample on the slide) |
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Collotheca annulata, another, semi-macerated specimen (by SDS for trophi analysis). The arrowheads point to 5 Lecane hamata-rotifers in the proventriculus (Tr: trophi). Also in this case, it appears that the trophi are not able to transport the prey into the stomach because of its size and stiffness of the lorica. |
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Collotheca annulata, two images of the uncinate trophi (macerated with SDS). Left: focus plane on the incus. Right: focus plane on the unci with 2 dents each. (1) |
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Samples courtesy of W. Bettighofer, www.protisten.de |
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Location (1); aquarium |
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Habitat (1); on the leafs of Taxiphyllum barbieri |
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Date : 23.05.2023 (1) |
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