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30 December 2020 Integrative Description of Pseudechiniscus lalitae sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae) from the Azores Archipelago (Portugal)
Pushpalata Kayastha, Tomasz Bartylak, Magdalena Gawlak, Łukasz Kaczmarek
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Abstract

We applied an integrative taxonomy approach to describe a new tardigrade species from Pico Island (the Azores Archipelago). Analysis was based on morphological and morphometrical data (using both light and scanning electron microscopy) and combined with multilocus molecular data (nuclear barcode sequence ITS-2 and mitochondrial COI sequence). Molecular data allowed us to determine that genetically (based on COI sequences) Pseudechiniscus lalitaesp. nov. is most similar to Pse. aff. facettalis and the least similar to Pse. indistinctus. The new species differs morphologically from other Pseudechiniscus species, mostly, by the ventral sculpture. Moreover, it differs from other species from suillus-facettalis complex also by some other more subtle morphological and morphometrical characters.

© Museum and Institute of Zoology PAS
Pushpalata Kayastha, Tomasz Bartylak, Magdalena Gawlak, and Łukasz Kaczmarek "Integrative Description of Pseudechiniscus lalitae sp. nov. (Tardigrada: Heterotardigrada: Echiniscidae) from the Azores Archipelago (Portugal)," Annales Zoologici 70(4), 487-505, (30 December 2020). https://doi.org/10.3161/00034541ANZ2020.70.4.002
Received: 19 May 2020; Accepted: 2 September 2020; Published: 30 December 2020
KEYWORDS
Atlantic Ocean
DNA barcoding
new species
taxonomy
water bears
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