Austeruseus faeroensis

• Main Authors: Trygvadóttir, Birna Vár, Kristensen, Reinhardt Møbjerg
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Tardigrada; Eutardigrada; Parachela; Eohypsibiidae; Austeruseus; Austeruseus faeroensis; Eysturoy; Faroe Islands; Suðuroy
• Online Access: https://doi.org/10.5281/zenodo.5627939; http://treatment.plazi.org/id/0385CF175C13B6124EEBA9A46202CA95

Austeruseus faeroensis nov. sp. (Figures 4–8) Type material. The holotype (slide FO30-005 [ZMUC-TAR 1068]), 2 paratypes (slides FO30-010c and FO30- 011-012b [ZMUC-TAR 1069 and ZMUC-TAR 1071]) and one embryonated egg (slide FO30-011b [ZMUC-TAR 1070]). The slides are deposited in the Zoological Museum, the Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark. Type locality. Summit of Vaðhorn mountain, Eysturoy, Faroe Islands (Fig. 1 B). The sample was a large moss cushion with underlying soil. GPS: 62°16.909’N, 7°00.349’W. Altitude 726 m a.s.l. Date: 20 November 2003. Coll.: Regin Árting. Additional material. One specimen (F036-011 [ZMUC-TAR-1072]) was found at “Hvannhagi”, Suðuroy, Faroe Islands. The sample was a large moss cushion. GPS: 61°34.375’N, 6°49.576’W. Altitude 200 m a.s.l. Date: 24 September 2004. Coll.: Uni Árting. Etymology. A. faeroensis is named after the type locality on Faroe Islands. Specific diagnosis. Medium sized animals with two macroplacoids (the first broken in the middle) and microplacoid. Large black eyes present. Ventral strengthening bar absent; however, a complex of three cuticular elements and two thin filaments are attached ventral to the buccal tube. Two hook-shaped appendages for insertion of the stylet muscles attached laterally on the buccal tube. Two rows of teeth in the buccal cavity. Cuticular bars present on legs I–III (at least the first bar appears dotted). Lunules on fourth pair, dentate. Description. Holotype (adult male) (Fig. 4): Body length, 411.7 µm (body length for paratypes range from 254.8–329.5 µm). Eyes present. The cuticule smooth. The buccal tube without ventral strengthening bar and 34.4 µm long and 4.0 µm wide. A complex of three small lens-shaped cuticular elements and two filaments replace the ventral strengthening bar (Fig. 5 A). The two filaments (which may be of a cuticular origin) run parallel with the stylets. The buccal tube with two lateral hook-shaped appendages. Mouth opening with 14 peribuccal lamellae, and two bands ...