New Zealand Journal of Zoology abstracts
Three new species of eutardigrades from the Seychelles
Giovanni Pilato
Maria Grazia Binda
Oscar Lisi
Department of Animal Biology “Marcello La Greca”
University of Catania
Via Androne 81
95124 Catania, Italy
pilato@unict.it
Abstract Three new species of tardigrades are
described from the Seychelles: Macrobiotus pseudocoronatus, Macrobiotus
danielisae, and Hypsibius seychellensis. Macrobiotus
pseudocoronatus sp. n. belongs to the Macrobiotus harmsworthi
group but it can be distinguished by the presence of very small
cuticular tubercles. It also differs from some other species in the
group by having eye spots, or by characters of the claws, or by details
of the bucco-pharyngeal apparatus, or by some characters of the eggs. Macrobiotus
danielisae sp. n. belongs to the Macrobiotus richtersi
group. It differs from the other species in the group by the
characteristics of the cuticular sculpture and, from some of them, or
by lacking eye spots, or by characters of the claws, or by details of
the bucco-pharyngeal apparatus, or by some characters of the eggs. Hypsibius
seychellensis sp. n. differs from Hypsibius dujardini
(Doyère, 1840) by having a slightly narrower
buccal tube of more uniform width (in H. dujardini the
posterior portion of the tube is wider than the anterior portion), and
shorter claws. It differs from H. iskandarovi Tumanov, 1997
by lacking lunules and cuticular bars on the first three pairs of legs.
It differs from Hypsibius allisoni Horning, Schuster &
Grigarick, 1978 by having a septulum instead of an almost invisible
microplacoid, and more slender claws with a longer basal portion.
Keywords Tardigrada; Macrobiotus
pseudocoronatus sp. n.; Macrobiotus danielisae sp. n.; Hypsibius
seychellensis sp. n.; Seychelles
Z05020; Received 16 May 2005; accepted 28 October 2005; Online
publication date 24 February 2006
New Zealand Journal of Zoology, 2006, Vol. 33: 39–48
0301–4223/06/3301–0039 © The Royal Society of New Zealand 2006
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