Anokkostenostomum membranosum ( Kepner & Carter, 1931 ) Noreña & Damborenea & Brusa, 2005

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 : 52

Anokkostenostomum membranosum ( Kepner & Carter, 1931) comb. nov.

( Fig. 4D )

Stenostomum membranosum Kepner & Carter, 1931

Description: Solitary individuals, 0.5 mm long. Twozooid chains. Fusiform body with tapering ends. The intestine reaches the caudal region of the body. Reduced lateral ciliated pits. No rhabdites. Homogeneous ciliated epithelium, without sensory cilia. Welldeveloped cilia in the ciliated pits. Specimens colourless in life.

Anterior brain lobes larger than the posterior lobes. No light-refracting bodies.

Oral pore axially elongated. Fibrous pharynx. Conspicuous lip sphincter. No pharyngeal glands. No excretophores. Nephridiopore terminal.

Distribution: Virginia, USA ( Kepner & Carter, 1931); São Paulo, Brazil ( Marcus, 1945b).

Figures

Figure 4. A, Anokkostenostomum anatirostrum. B, A. corderoi. C, A. eveline. D, A. membrenosum. Scale bars = 200 Mm.