| dc.description.abstract |
A new species of deep-water anthiadid perchlet, Sayonara flavolineata, is described from seven
specimens collected off Nha Trang, southeastern Vietnam. Based on morphological features, it is assigned to a
recently resurrected genus Sayonara Jordan & Seale, 1906, a former junior synonym of Plectranthias. Sayonara
flavolineata, new species is distinctive in having yellow and reddish orange stripes when fresh, a horizontal
dusky stripe in the middle of spinous dorsal fin, and a slightly concave dorsal profile of the head. It is further
distinguished from other anthiadids by the following combination of characters: dorsal-fin rays X, 15; pectoral-fin
rays 15–16; branched caudal-fin rays 8+7; lateral-line scales 31–35; circumpeduncular scales 12; predorsal scales
extending anteriorly to posterior nostrils; body scales bearing basal cteni; scales present on maxilla, infraorbital,
and mandibles; presence of trisegmental pterygiophores in both dorsal and anal fins; and two supraneurals. We
updated and revised the record of species previously classified under Plectranthias in Vietnam. Including the new
species, five species are now known from Vietnam and are reclassified to recently resurrected genera including
Sayonara, Xenanthias, and Zalanthias. |
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