Typhlopolycystis australiensis Reygel, Schockaert & Artois, 2019

Schockaert, Ernest R., Moons, Patricia, Janssen, Toon, Tessens, Bart S., Reygel, Patrick C., Revis, Nathalie, Jouk, Philippe E. H., Willems, Wim R. & Artois, Tom J., 2019, On the genus Typhlopolycystis Karling, 1956 (Platyhelminthes, Kalyptorhynchia, Polycystididae), with data on the five known species and the description of eleven new species, Zootaxa 4603 (1), pp. 81-104 : 97

Typhlopolycystis australiensis Reygel, Schockaert & Artois n. sp.

( Figs 12 H–J)

Diagnosis. Yellowish-brown species of Typhlopolycystis , around 1 mm long with a proboscis 1/5 of the body length and with eyes. The prostate stylet is 63 µm long and 20 µm broad, regularly curved with a blunt end. The accessory stylet starts at the convex end of the main stylet; it is 73 µm long with the same curvature as the main stylet. A prostate vesicle was not observed; the seminal vesicle and the accessory secretion reservoir are relatively small. The seminal receptacle is pear-shaped.

Occurrence. Australia: Adelaide (South Australia), Port Lincoln, Boston Bay , in sand extracted from between the roots of Possidonia australis from just under the low water line (by Reygel & Willems, 28 November 2010) .

Material observed. One animal studied alive and mounted as the holotype (QldM nr G235804).

Etymology. Species named after the locality where it was found.

Figures

FIGURE 12. Typhlopolycystis riegeri n. sp. (A) The atrial organs in the living animal. (B) The copulatory organ in the holotype. (C) The copulatory organ in the paratype. Typhlopolycystis tahitiensis n.sp. (D) The copulatory organ in the holotype. (E-F) The copulatory organ in two syntypes from Tahiti (G). The copulatory organ in an individual from Rangiroa. (H) The atrial organs in the whole mount of a syntype. Typhlopolycystis australiensis n.sp. (I) The copulatory organ in the holotype and (J) its seminal receptacle. (scale = 20 µm)