Vol. 45 No. 1, 2006
The Tardigrada Fauna of Mongolia (Central Asia) with a Description of Isohypsibius altai sp. nov. (Eutardigrada: Hypsibiidae)
Lukasz Kaczmarek1 and Lukasz Michalczyk2,*
of Animal Taxonomy and Ecology, A. Mickiewicz University, Umultowska
89, 61-614 Pozna´n, Poland E-mail: firstname.lastname@example.org
2Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland E-mail: email@example.com
Lukasz Kaczmarek and Lukasz Michalczyk (2006) The
Tardigrada fauna of Mongolia was analyzed on the basis of the
historical literature, specimens collected in 1980 by A. Pacyna, and
the present research (conducted in 2000). In this paper, a list of 62
species known from Mongolia is given. During the study, 15 species were
identified as new to Mongolia and 6 as new to science. Five of the new
species (Itaquascon mongolicus Kaczmarek et al., Platicrista horribilis Kaczmarek and Michalczyk, Bryodelphax asiaticus Kaczmarek and Michalczyk, Isohypsibius archangajensis Kaczmarek and Michalczyk and Minibiotus weglarskae Michalczyk et al., 2005) were described in separate papers, and the 6th species, Isohypsibius altai sp. nov. is described herein. It differs from the most-similar I. macrodactylus (Maucci) and I. irregibilis
Biserov by the presence of only 2 macroplacoids in the pharynx and a
narrower buccal tube. It also differs from I. irregibilis by the
presence of microplacoids and the lack of a projection on the upper
part of the internal claws. Diphascon sexbullatum
Ito was recorded during the present research. This is only the 2nd
record of this species, and the 1st microphotographs of this species
are provided in this paper. A key is provided for determining the
species currently reported from Mongolia.
Key words: New species, New records, Taxonomy, Faunistics.
Present address: Centre for Ecology, Evolution and Conservation, School
of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.