Calohypsibius Thulin, 1928: 238
Revisiting Calohypsibiidae and Microhypsibiidae: Fractonotus Pilato, 1998 and its phylogenetic position within Isohypsibiidae (Eutardigrada: Parachela)
Gąsiorek, Piotr
Morek, Witold
Stec, Daniel
Blagden, Brian
Michalczyk, Łukasz
Zoosystema
2019
2019-03-07
41
6
71
89
62L37
Thulin, 1928
Thulin
1928
[346,638,1939,1965]
Eutardigrada
Calohypsibiidae
Calohypsibius
Animalia
Parachela
14
83
Tardigrada
genus
Calohypsibius Thulin, 1928: 238.
DIAGNOSIS. — Same as for the family Calohypsibiidae.
ETYMOLOGY (NOT PROVIDED IN THE ORIGINAL DESCRIPTION). —After Schuster et al.(1980), from Ancient Greek κά^ος ( kállos) = beauty; derivatives calli-, callo- mean beautiful, pretty. Thulin most likely wanted to highlight the cuticular sculpturing, which is exceptionally complex, rich and unusual among Eutardigrada.
COMPOSITION AND REMARKS Currently only three species, namely C. maliki Michalczyk & Kaczmarek, 2005( Fig. 4B), C. ornatus( Richters, 1900)( typespecies; Figs 3C, D, 4A), and C. schusteri Nelson & McGlothlin, 1996( Fig. 4C), are ascribed to the family. Nevertheless, Bartoš (1940)already described the remarkable variability within European records of the ornatuscomplex, which raises justifiable concerns as to whether C. ornatusencompasses only a single species. Further, as suggested by Pilato (1998), it is very likely that the genus comprises many more species than currently recognised. However, a systematic integrative study based on extensive sampling is needed to verify this hypothesis.