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Integrative Descriptions of Two New Macrobiotidae Species (Tardigrada: Eutardigrada: Macrobiotoidea) from French Guiana and Malaysian Borneo.


ABSTRACT: In this paper we describe two new tardigrade species, one representing the Macrobiotus hufelandi complex and the other from the Paramacrobiotus richtersi complex. The descriptions are based on a detailed morphological examination under light and scanning electron microscopy and analysis of four genetic markers (18S rRNA, 28S rRNA, ITS-2 and COI). Macrobiotus crustulus sp. nov. from French Guiana is the most similar to Macrobiotus martini Bartels, Pilato, Lisi and Nelson, 2009, Macrobiotus santoroi Pilato and D'Urso, 1976, but differs from them mainly by having the lissostomus type of the oral cavity armature (teeth not visible under light microscopy) and well-developed, convex terminal discs of egg processes covered with evident granulation. Paramacrobiotus filipi sp. nov. from the Malaysian part of Borneo is the most similar to Paramacrobiotus alekseevi (Tumanov, 2005), but differs from it primarily by the presence of body granulation visible under light microscopy as well as sculptured and porous areoles around egg processes.

SUBMITTER: Stec D 

PROVIDER: S-EPMC7689055 | biostudies-literature |

REPOSITORIES: biostudies-literature

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