Typhlopolycystis pluvialiae, Schockaert & Moons & Janssen & Tessens & Reygel & Revis & Jouk & Willems & 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 : 92-93

Typhlopolycystis pluvialiae n. sp Artois, Jansens and Schockaert.

( Figs 10 A–D)

Diagnosis. Colourless species of Typhlopolycystis , about 1 mm long with a proboscis of 1/4 of the body length and without eyes. The prostate stylet is curved, 63 µm long with a thickened proximal “head” of about 29 µm at its concave side (x in Fig. 10D ). The accessory stylet is attached to the prostate stylet at the opposite side. It makes a turn of 180° and then follows the curve of the prostate stylet; it ends in a point and is 74 µm long, measured from the place where it is attached to the prostate stylet.

Occurrence. Spain: Isle of Lanzarote (Canary Islands), Mala , large sand patch among rocks, medium-fine, calcareous sand, not well-oxygenated (reduced just below surface), 20 m deep (29°5' 0.53"N, 13°26' 59.10"W) (by Artois & Jansens, 0 8 October 2011) (Type Locality) .

Material examined. Observations and micrographs of a living animal. One whole mount (Holotype, SMNH nr 8916).

Etymology. Pluvialia was the Roman name of Lanzarote.

Figures

FIGURE 10. Typhlopolycystis pluvialiae n. sp. (A) The living animal. (B, C) Micrograph and drawing of the caudal half of the living animal. (D) The copulatory organ in the holotype. Typhlopolycystis maikoni n.sp. (E) The living animal. (F) The copulatory organ. (scale = 20 µm except in E)