Article
Vol. 62-17, 2023
A New Species of Box Jellyfish (Cnidaria: Tripedaliidae: Tripedalia) from Hong Kong, China
Yanan Sun, Justin Hon Yin Tsui, Rachel Ting Huen Wong, Ringo Nga Ching Cheung, Murphy Kam Pui Ng, Carmen K.M. Or, Jian-Wen Qiu*
Communicated by Benny Kwok Kan Chan

We describe a box jellyfish, Tripedalia maipoensis sp. nov., based on samples collected from a shrimp pond in Hong Kong. This new species is morphologically distinct from other species of the family Tripedaliidae by the following combination of characters: (1) three pedalia at each bell corner; (2) each pedalium with one tentacle; and (3) velarium with forked canals. Phylogenetic analyses based on a concatenated dataset of the 16S, 18S and 28S rRNA genes show that T. maipoensis sp. nov. is sister to the morphologically similar species T. cystophora, but the two species exhibit 17.4% divergence in the 16S rRNA gene, supporting T. maipoensis sp. nov. as a distinct species. This new species represents the fourth described species of Tripedaliidae, and the first record of the family in Chinese coastal waters.

Keywords

Box jellyfish, Tripedalia, Morphology, Phylogeny, Hong Kong.

About this article
Citation:

Sun Y, Tsui JHY, Wong RTH, Cheung RNC, Ng MKP, Or CKM, Qiu JW. 2023. A new species of box jellyfish (Cnidaria: Tripedaliidae: Tripedalia) from Hong Kong, China. Zool Stud 62:17. doi:10.6620/ZS.2023.62-17.

( Received 21 August 0022 / Accepted 27 January 2023 / Published 20 March 2023 )
DOI: https://doi.org/10.6620/ZS.2023.62-17