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Acrochordonoposthia Reisinger 1924
No full textAcrochordonoposthia Reisinger, 1924 Reisinger (1924 a): 75 Diagnosis (after Reisinger 1924 a). Protoplanellinae with dermal rhabdites. Adenal rhabdites, when present, only in frontal tracks ("Stäbchenstraßen"). Pharynx rosulatus inclined forwards, barrel shaped and situated in first third of the body. Copulatory organ in the caudal body end, with the gonopore in last third of the body. Cirrus present, at least partly provided with sclerotized warts or spines. Tail glands absent.Published as part of Houben, Albrecht M., Proesmans, Willem, Bert, Wim & Artois, Tom J., 2014, Revision of Acrochordonoposthia Reisinger, 1924 (Rhabditophora, Typhloplanidae, Protoplanellinae) with the description of one new species in Zootaxa 3790 (1), DOI: 10.11646/zootaxa.3790.1.2, http://zenodo.org/record/23087
Fig. 11. Protoplanella simplex Reisinger, 1924. A in Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus
No full textFig. 11. Protoplanella simplex Reisinger, 1924. A. Internal organisation of a live specimen. B. Organisation of the genital system of a live specimen. C. Reconstruction of reproductive organs based on sagittal sections of the neotype (neotype no. 825).Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 100, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Fig. 10. Prorhynchella minuta Ruebush, 1939. A in Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus
No full textFig. 10. Prorhynchella minuta Ruebush, 1939. A. Internal organisation of a live specimen. B. Reconstruction of the anterior body part based on horizontal sections. C. Reconstruction of a fully developed bursa based on horizontal sections. D. Reconstruction of reproductive organs based on sagittal sections. E. Squash preparation of a live specimen. F. Detail of the genital system of a live specimen.Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 97, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Fig. 4. Adenocerca minima Kolasa, 1981. A in Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus
No full textFig. 4. Adenocerca minima Kolasa, 1981. A. Internal organisation of a live specimen. B. Reconstruction of reproductive organs based on horizontal sections. C–F. Male copulatory organ of the whole-mounted specimen (XIV.3.18).Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 80, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Fig. 9. Olisthanellinella rotundula Reisinger, 1924. A in Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus
No full textFig. 9. Olisthanellinella rotundula Reisinger, 1924. A. Internal organisation of a live specimen. B. Organisation of the genital system of a live specimen. C. Reconstruction of female reproductive organs based on horizontal sections. D. Reconstruction of male reproductive organs based on sagittal sections.Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial 'Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 95, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Faunulus Houben, Proesmans & Artois 2022, gen. nov.
No full textGenus Faunulus Houben, Proesmans & Artois gen. nov. urn:lsid:zoobank.org:act: 18E72BA0-D92B-4504-8E17-BD6497247BCA Type species Faunulus nielsi Houben, Proesmans & Artois gen. et sp. nov. Diagnosis ‘Typhloplanidae’ with adenal rhabdites in two anterior tracts, dermal rhabdites could be present distally. Eyes absent. Pharynx slanted obliquely forward and in the central body part. With rod-shaped glands at rostral and caudal body end. Testes differ in size and lie anterior to the pharynx. Copulatory organ with straight, armed cirrus. Seminal receptacle inside of the oviduct. Bursa copulatrix absent. Etymology The genus name refers to the habitat where this taxon was found and is derived from the Latin ‘Faunulus’ (m.), meaning ‘forest dweller’.Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial ' Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 75, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Acrochordonoposthia robusta Luther 1963
No full textAcrochordonoposthia robusta Luther, 1963 (Fig 6 K) Known literature. Acrochordonoposthia robusta Luther (1963): 18, fig. 3 I Known distribution. Tenala, Hylta, Finland, Sphagnum -swamp in a small valley at the shore of lake Långträsk, situated in the shade of willows, found between leaves of Salix in the water (Luther 1963). Material. None Remarks. This species is poorly known, as it was described from a single, disintegrating specimen (Luther 1963). Animals over 1 mm long. The copulatory organ measures 414 µm in length and is provided with a conicalshaped pouch. The proximal part of the cirrus is weakly bent, funnel-shaped and further distally becomes straight and lined with spines.Published as part of Houben, Albrecht M., Proesmans, Willem, Bert, Wim & Artois, Tom J., 2014, Revision of Acrochordonoposthia Reisinger, 1924 (Rhabditophora, Typhloplanidae, Protoplanellinae) with the description of one new species in Zootaxa 3790 (1), DOI: 10.11646/zootaxa.3790.1.2, http://zenodo.org/record/23087
Acrochordonoposthia ramolia An
No full textAcrochordonoposthia ramolia An der Lan, 1958 (Figs 5 F–H) Known literature. Acrochordonoposthia (?) ramolia An der Lan (1958): 163–166, figs 1–5 Known distribution. At 3200 m above sea level, north of the Ramoljoch, Obergurgl, Austria Material. None Remarks. The original description mentions that the animals are about 180 µm long, and completely transparent. The copulatory organ bears an oval-shaped seminal vesicle and a conical-shaped pouch. The cirrus bears fine sclerotized lumps in its proximal part and sclerotized spines in the distal part. The presence of prostate glands was not observed by An der Lan (1958). An der Lan’s (1958) figure 4 (our Fig. 5 G) shows a rather atypically-shaped copulatory organ, with an enormous and globular seminal vesicle. However, his figure 3 (our Fig. 5 F), which shows the habitus of the animal, depicts the typical ovoid outline of the copulatory organ, just as it occurs in other species of Acrochordonoposthia. Either the copulatory organ is indeed much more globular, a unique situation within Acrochordonoposthia, or it is an artefact caused by extreme squeezing of the animal, as An der Lan (1958) himself seems to suggest.Published as part of Houben, Albrecht M., Proesmans, Willem, Bert, Wim & Artois, Tom J., 2014, Revision of Acrochordonoposthia Reisinger, 1924 (Rhabditophora, Typhloplanidae, Protoplanellinae) with the description of one new species in Zootaxa 3790 (1), DOI: 10.11646/zootaxa.3790.1.2, http://zenodo.org/record/23087
Bryoplana Van Steenkiste, Davison & Artois 2010
No full textGenus Bryoplana Van Steenkiste, Davison & Artois, 2010 Type species Bryoplana xerophila Van Steenkiste, Davison & Artois, 2010. Remark As Bryoplana belgica Houben, Proesmans & Artois sp. nov. is only the second species to be described within the genus, we here provide a new, emended diagnosis for Bryoplana Van Steenkiste, Davison & Artois, 2010, as well as the type species Bryoplana xerophila Van Steenkiste, Davison & Artois, 2010. For further details, please refer to the discussion on B. belgica Houben, Proesmans & Artois sp. nov. below. Diagnoses Bryoplana Diagnosis amended after Van Steenkiste et al. 2010. Genus of ‘Protoplanellinae’ without dermal or adenal rhabdites. Eyes absent. Pharynx somewhat elongate, in anterior part of body and slanting obliquely forward. Paired testes near the caudal body end and ventrocaudal to the vitellaria. Simple muscular tube as copulatory organ. Bursa copulatrix absent. Bryoplana xerophila Species of Bryoplana with the body completely covered by cilia. Testes small, globular. Copulatory organ without any sclerotisation. Without seminal vesicle.Published as part of Houben, Albrecht M., Monnens, Marlies, Proesmans, Willem & Artois, Tom J., 2022, Limnoterrestrial ' Typhloplanidae' (Rhabdocoela, Platyhelminthes), with the description of four new species and a new genus, pp. 70-102 in European Journal of Taxonomy 798 on page 81, DOI: 10.5852/ejt.2022.798.1671, http://zenodo.org/record/632304
Acrochordonoposthia ophiocephala Reisinger 1924
No full textAcrochordonoposthia ophiocephala Reisinger, 1924 Known literature. Acrochordonoposthia ophiocephala Reisinger (1924 a): 77 Known distribution. Widespread in Styria, Austria (Reisinger 1924 a) Material. None Remarks. According to the original description, the animals are about 0.9 mm long. The head is clearly separated from the rest of the body and resembles a lizard’s or snake’s head. The testes appear as elongated organs, which run from about two-thirds of the body length forward. The copulatory organ has a wide bulbous part and a distinctly cylindrical pouch. The cirrus is a little wider than that of A. conica, and it is lined with sclerotized warts. A single, large prostate gland is located on each side of the copulatory organ, giving the prostate vesicle the appearance of two egg-shaped balls. Bursa, female duct and seminal receptacle have the same general morphology as in A. conica.Published as part of Houben, Albrecht M., Proesmans, Willem, Bert, Wim & Artois, Tom J., 2014, Revision of Acrochordonoposthia Reisinger, 1924 (Rhabditophora, Typhloplanidae, Protoplanellinae) with the description of one new species in Zootaxa 3790 (1), DOI: 10.11646/zootaxa.3790.1.2, http://zenodo.org/record/23087
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