Stenostomum simplex Kepner & Carter, 1931

Noreña, Carolina, Damborenea, Cristina & Brusa, Francisco, 2005, A taxonomic revision of South American species of the genus Stenostomum O. Schmidt (Platyhelminthes: Catenulida) based on morphological characters, Zoological Journal of the Linnean Society 144 (1), pp. 37-58 : 49

publication ID

https://doi.org/ 10.1111/j.1096-3642.2005.00157.x

DOI

https://doi.org/10.5281/zenodo.5113620

persistent identifier

https://treatment.plazi.org/id/8C6887DA-3076-C474-FF91-A163D3D1AB0E

treatment provided by

Carolina

scientific name

Stenostomum simplex Kepner & Carter, 1931
status

 

Stenostomum simplex Kepner & Carter, 1931 View in CoL

( Fig. 3C View Figure 3 )

Description: Individuals with 2–4 zooids, 0.7–0.8 mm long. Body cylindrical. Anterior end tapering. Presence of lateral constrictions in the ciliated pit regions, and at the caudal edge of the posterior lobes. Small lateral ciliated pits. Rounded posterior end, without an intestine-lacking region. Ciliated epithelium frequently with sparse longer sensory cilia. Homogeneous rhabdites.

Anterior brain lobes separated into small independent masses (‘metamerics’). A pair of internal lobes associated with the posterior lobes (trilobate brain after Marcus, 1945a). Spherical nerve commissure. A pair of light-refracting bodies formed by a single naked sphere, with no vesicle (type 3), associated with the posterior brain lobes.

Small, axially elongated oral pore. Type a pharyngeal glands. No excretophores. Nephridiopore terminal.

Distribution: Virginia, USA ( Kepner & Carter, 1931; Kolasa, 1991); São Paulo, Brazil ( Marcus, 1945b); Finland? ( Lanfranchi & Papi, 1978).

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