Macrobiotus garynahi Kaczmarek, Michalczyk & Diduszko, 2005, sp. nov.

• Main Authors: Kaczmarek, Łukasz, Michalczyk, Łukasz, Diduszko, Dawid
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2005
• Subjects: Biodiversity; Taxonomy; Animalia; Tardigrada; Eutardigrada; Parachela; Macrobiotidae; Macrobiotus; Macrobiotus garynahi; taiga
• Online Access: https://doi.org/10.5281/zenodo.5612849; http://treatment.plazi.org/id/03B6C270520EFFFAFE8BFA03FB38FB45

Macrobiotus garynahi sp. nov. (Figs 1–13) Material examined. 10 specimens and 11 eggs, Russia, Irkutsk Province, East Sayany Mts., ca. 700 m asl, near Lake Baikal, dark taiga, lichen from stone, together with unidentified Macrobiotus sp. (2 specimens) and Diphascon cf. pingue (1 specimen), 16.08.2004; leg. D. Diduszko. Description. Adult (holotype): Body length 480.0. Body transparent/white, eyes absent (Fig. 3). Cuticle smooth and with evident oval pores (3.0–5.0 in longer diameter) on whole cuticle. Fine but evident, regular granulation present on all legs but developed better on IV pair (Figs 4–5). Bucco­pharyngeal apparatus of Macrobiotus ­ type (Figs 1–2). Mouth antero­ventral, surrounded by ring of 10 peribuccal lamellae. Oral cavity armature with three bands of teeth (Figs 1–2). Teeth of first band are smaller than those of the other two bands and are in the shape of small granules. They are present in anterior portion of oral cavity just behind peribuccal lamellae and on them. This band of teeth is continuous and looks the same on all oral cavity walls. In the second band, the teeth are intermediate in size between those of the first band and those of the third band of teeth. They are in the shape of small ridges parallel to the main axis of the buccal tube (ventral teeth are little larger than dorsal). They are positioned in the posterior portion of the oral cavity just behind the ring fold and just before the third band of teeth. The second band of teeth is continuous and arranged in one row. Some of the teeth are uniform and regular, in the shape of ridges but the rest are joined one­by­one. Joined teeth are H­, V­ and W­shaped. In the third band, the teeth are larger than those in the other two rows and there are usually six. They are in the shape of transverse ridges/baffles. Teeth in this band are positioned in the rear of the oral cavity just behind the second band of teeth and just before the buccal tube opening. Usually this band is not continuous and is divided into two series: ventral and ...