Stenostomum bryophilum Luther, 1960

Larsson, Karolina & Willems, Wim, 2010, Report on freshwater Catenulida (Platyhelminthes) from Sweden with the description of four new species, Zootaxa 2396, pp. 1-18 : 13-14

Stenostomum bryophilum Luther, 1960

( Fig. 5 C–D, 6 G–H)

Localities. Loc. 1, 3, 5, 8.

Known distribution. Finland ( Luther 1960).

Material. Several individuals studied alive.

Description and remarks. Prostomium, excretophores and peristaltic movements correspond to Luther’s description (1960). However, the pharyngeal glands could not be seen in our specimens, which also showed epidermal inclusions (fig. 7G: ei). These inclusions are similar to the rosette-shaped glands described in Stenostomum glandulosum Kepner & Carter, 1931 , which also has a prostomium-like anterior end. Stenostomum anatirostrum Marcus, 1945 also shows a prostomium-like anterior end but is much larger in size.

Figures

FIGURE 5. Live specimens of Catenulida: A – B: Stenostomum arevaloi (A: anterior end, B: tail); C-D: Stenostomum bryophilum (C: one zooid, D: two zooids); E: Stenostomum grabbskogense; F-G: Stenostomum leucops (F: whole animal, G: anterior end); H, L: Catenula turgida (H: whole individual, L: mouth region); I: Stenostomum sphagnetorum; J: Catenula macrura; K: Catenula lemnae; M: Rhynchoscolex simplex.