Abstract
A new species, Ramazzottius bunikowskae sp. nov. is described from a lichen sample collected in Russia. The new species is the most similar to R. caucasicus Biserov, and R. tribulosus Bertolani & Rebecchi in the shape of the egg processes but it differs from these species by some differences in the egg processes’ appearance and measurements and also by measurements of some structures in adult specimens. We also provide first observations of peribuccal lobes, papillae and porous areas on the head (possibly external parts of chemoreceptors) in the genus Ramazzottius.References
Bertolani, R. & Rebecchi, L. (1988) The tardigrades of Emilia (Italy). I. Rossena. Bollettino di Zoologia, 55, 367–371.
Binda, M.G. & Pilato, G. (1986) Ramazzottius, nuovo genere di Eutardigrado (Hypsibiidae). Animalia, 13, 159–166.
Biserov, V.I. (1998) Tardigrades of the Caucasus with a taxonomic analysis of the genus Ramazzottius (Parachela: Hypsibiidae). Zoologischer Anzeiger, 236, 139–159.
Doyére, L.M. (1840) Memoire sur les Tardigrades. I. Annales des Sciences Naturelles, Paris, Ser. 2, 14, 269–362.
Guidetti, R. & Bertolani, R. (2005) Tardigrade taxonomy: an updated check list of the taxa and a list of characters for their identification. Zootaxa, 845, 1–46.
Pilato, G. (1981) Analisi di nuovi caratteri nello studio degli eutardigradi. Animalia, 8, 51–57.