Ubagan MD et al. (2020), A new species of the genus Henricia (Asteroidea...

ECB-ART-49418

Zookeys 2020 Nov 25;997:1-15. doi: 10.3897/zookeys.997.52703.

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A new species of the genus Henricia (Asteroidea, Spinulosida, Echinasteridae) from South Korea.

Ubagan MD , Lee T , Kim P , Shin S .

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A new species of the genus Henricia Gray, 1840 that belongs to the family Echinasteridae is described from South Korea. Henricia epiphysialis sp. nov. has epiphyseal ossicles at the ends of the abactinal and lateral plates, and the abactinal and lateral spines form a hooked crown. The partial sequence of the mitochondrial COXI gene (537 bp) of H. epiphysialis sp. nov. was obtained, and the new species was morphologically and genetically compared with other related Henricia species.

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References [+] :

Folmer, DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. 1994, Pubmed, Echinobase

	Figure 1. Map of Korea showing the collection sites of Henricia epiphysialis sp. nov. in the East Sea, South Korea.
	Figure 2. External characteristics of Henricia epiphysialis sp. nov. A abactinal side B actinal side C abactinal spines D spines on lateral side of arm E adambulacral spines F oral part. Abbreviations: ab abactinal side ls lateral side ss superomarginal spines is inferomarginal spines vs ventrolateral spines as adambulacral spines os oral spines ms marginal spines sos sub-oral spines.
	Figure 3. Denuded skeleton of Henricia epiphysialis sp. nov. A abactinal plates B madreporite (arrow) C part of abactinal and lateral side of arm D plates on the lateral and actinal side of arm E actinal plates F oral part. Abbreviations: ab abactinal side ls lateral side eo epiphyseal ossicles p papula s superomarginal plates in intermarginal plates i inferomarginal plates v ventrolateral plates a adambulacral plates am ambulacral plates o oral plates.
	Figure 4. SEM images of the spines of Henricia epiphysialis sp. nov. A, B, C abactinal spines D superomarginal spines E inferomarginal spines F ventrolateral spines G adambulacral spines H furrow spines.
	Figure 5. Phylogenetic trees of Henricia species including Henricia epiphysialis sp. nov. based on Neighbor joining (NJ) ANJ tree constructed with 189 bp of COX1 dataset BNJ tree constructed with 537 bp of COX1 dataset; K, Knott et al., 2018; L, Lopes et al., 2016; M, Misaki, Kanagawa in Wakita et al., 2019; O, Oshoro, Hokakido in Wakita et al., 2019.