| Bryceella perpusilla; very small (body length: 100µm), extremely vivid species; ventral view showing the ciliary field of the head. The identification is based on the apical styli (S) and the vitellarium with 4 nuclei (triangles). The arrowhead points to the caudal antenna.(1) |
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| Bryceella perpusilla; another view of the same specimen with focus on styli and caudal antennae. (1) |
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| Bryceella perpusilla; arrowheads pointing to the 4 nuclei of the vitellarium. (1) |
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| Bryceella perpusilla; focus on the outwardly curved toes, which can be retracted like a telescope into the last pseudosegment of the foot. (1) |
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| Bryceella perpusilla; specimen from (2). |
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| Bryceella perpusilla; lateral view; specimen from (3). |
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| Bryceella perpusilla; dorsoventral view of the anterior part of a specimen mecerated with SDS. Some epipharyngeal structures ("Epi", marked by double arrow) can be observed aside from the trophi (Tr). (4). |
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| Bryceella perpusilla; trophi; left: specimen from (3); right: specimen from (4). |
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| Bryceella perpusilla; dorsoventral view of a young specimen; the ventral cilia (?bristles?) are organised in 6 bundles which insert at 6 hypodermal cuhsions (marked by arrowheads). (5) |
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| Bryceella perpusilla; lateral view; focal plane on the epidermal projection (arrowhead) and the dorsal antenna (arrow). (5) |
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| It might be possible that the species identified as Wierzejskiella vagneri (earlier found in nature reserve Schwalm) is also Bryceella perpusilla. |
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| Sample (4) courtesy of Dr. D. Fontaneto, Verbania, Italy |
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| Location: Hattingen Oberstueter, forest (1); (2); Lista, Norway, pond (4) |
| Habitat: tree moss, sympatric with B.stylata (1); (2); sphagnum moss (3); Sphagnum moss (4) |
| Date: 13.02.2013 (1); 31.8.2014 (2); 04.08.2016 (3); 29.10.2021 (4) |
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