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Generic switch-over during ontogenesis in Dimorphacanthella gen. n. (Collembola, Isotomidae) with barcoding evidence

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Author(s): Mikhail Potapov | Yun Bu | Cheng-Wang Huang | Yan Gao | Yun-Xia Luan

Journal: ZooKeys
ISSN 1313-2989

Volume: 73;
Start page: 13;
Date: 2010;
Original page

Keywords: Anal spines | New genus | Chinese Collembola | Barcoding analysis

ABSTRACT
A new genus Dimorphacanthella is established for Tetracanthella anommatos Chen and Yin, 1984 and Dimorphacanthella mediaseta sp. n. from China. The new genus exhibits an unusual metamorphosis: small juveniles, previously called Uzelia anommatos Yue & Yin, 1999 get the second pair of anal spines resulted from moulting and become “Tetracanthella”. Species identity of forms with two and four anal spines is proved by barcoding analysis. The derivation of anal spines is compared among generafour anal spines.

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