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Article
Published: 2021-10-13

Description of a new codling species of Physiculus from Taiwan (Gadiformes: Moridae)

Institute of Oceanography, National Taiwan University, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
Pisces Morid deep-sea fishes DNA barcoding Taiwan

Abstract

A new species of codling Physiculus megastomus sp. nov. is described based on the holotype and a subadult paratype collected from northern and eastern Taiwan. The new species is classified in Physiculus by the presence of a ventral light organ on the abdomen and a chin barbel, and the absence of vomerine teeth. It is distinguished from congeners in having a large mouth with the posterior end of the maxilla extending well behind the level of the posterior margin of the orbit, its length 57.8‒60.7% in head length (HL) and the combination of the following characters: both jaws bearing caniniform teeth; snout, suborbital area, and gular region fully scaled; ventral light organ small, its length 5.5‒6.7% of distance from the interventral line to the origin of the anal fin (InV-af), located approximately at the mid-point of InV-af; five gill rakers on the upper limb of the first gill arch. DNA barcoding supported the establishment of the new species.

 

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How to Cite

TANG, C.-N. . (2021). Description of a new codling species of <em>Physiculus</em> from Taiwan (Gadiformes: Moridae). Zootaxa, 5052(1), 105–116. https://doi.org/10.11646/zootaxa.5052.1.6