Stenostomum ciliatum 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 : 43-44

publication ID

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

DOI

https://doi.org/10.5281/zenodo.5113600

persistent identifier

https://treatment.plazi.org/id/8C6887DA-307C-C47F-FC39-A112D5E3A832

treatment provided by

Carolina

scientific name

Stenostomum ciliatum Kepner & Carter, 1931
status

 

Stenostomum ciliatum Kepner & Carter, 1931 View in CoL

( Fig. 1D View Figure 1 )

Stenostomum agile Silliman, 1885 View in CoL

Description: Solitary individuals, 1 mm or less long. Chains with two zooids. Body robust, anterior end blunt. Ciliated pits lateral and superficial. Tapering posterior end with intestine-lacking region. Small epidermal cilia, uniformly distributed, longer at the posterior end. Rod-like rhabdites throughout the entire epidermis.

Anterior brain lobes deeply dentate. A pair of lightrefracting bodies associated with the posterior brain lobes; each one formed by one, two or three spheres, included in a colourless vesicle (type 2).

Oral pore oval, transversal and surrounded by glands. Wide pharynx. The glands on both sides of the pharynx (type b) open onto the anterior end, and smaller ones (type a) open onto the whole surface. Conspicuous pharyngeal sphincter. Intestinal wall with irregularly distributed excretophores. Nephridiopore ventral, subterminal and posterior to the intestine.

Distribution: Virginia, USA ( Kepner & Carter, 1931; Kolasa, 1991); São Paulo and Paraná State, Brazil ( Marcus, 1945b).

Discussion: Kepner & Carter (1931) described the ciliated pits as relatively small for the specimens from Virginia and Marcus (1945b) described them as long and extensive. This author states that this difference would not suffice to separate the species, because they share the rest of the diagnostic characters.

Kingdom

Animalia

Phylum

Platyhelminthes

Class

Turbellaria

Order

Catenulida

Family

Stenostomidae

Genus

Stenostomum

Loc

Stenostomum ciliatum Kepner & Carter, 1931

Noreña, Carolina, Damborenea, Cristina & Brusa, Francisco 2005
2005
Loc

Stenostomum agile

Silliman 1885
1885
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