Lepidotrigla longipinnis Alcock, 1890,
Lepidotrigla psolokerkos Gomon & Psomadakis, 2018
RAFFLES BULLETIN OF ZOOLOGY. 66
A 2015 trawl survey along the coast of Myanmar provided an opportunity to assess species of the triglid genus Lepidotrigla occurring in the country. Three species, L. longipinnis Alcock, 1890, L. omanensis Regan, 1905, and an undescribed species, were identified among the 15 voucher specimens retained. A formal description of the unnamed species, as well as descriptive accounts of the other two are provided. Lepidotrigla psolokerkos, new species, based on two specimens, resembles L. alcocki Regan, 1908 described from the Saya de Malho Bank in the central Indian Ocean, differing from it in having fewer oblique scale rows between the anal fin origin and the lateral line and broader covering of dark pigmentation on the inner surface of the pectoral fin. The known geographical ranges of L. longipinnis, reported in the literature as L. riggsi Richards & Saksena, 1977, and L. omanensis are extended to the Andaman Sea off south-eastern Myanmar. A key is provided for the three species occurring in the survey area.
Key words. Indian Ocean, taxonomy, ichthyology, geographical distribution, depth range
Lepidotrigla longipinnis Alcock, 1890
Proposed vernacular: Stellar Gurnard
Etymology. Initially proposed as a varietal name, longipinnis is an amalgamation of the Latin “longus” for long and “pinna” for fin, in reference to the longer pectoral fin that was considered by Alcock (1890) to distinguish what is now recognised as a distinct species from L. spiloptera Günther, 1860.
Distribution. Confined to coastal waters of the northern Indian Ocean, from at least Bombay, India to just south of the equator off the west coast of Sumatra, Indonesia (Fig. 4) at depths of 70 to at least 107 m.
Lepidotrigla omanensis Regan, 1905
Vernacular: Oman Gurnard
Etymology. Regan’s (1905) omanensis was named for the collecting locality “the Sea of Oman” for his three type specimens.
Distribution. Occurs in coastal waters of the northern Indian Ocean from the Gulf of Aden to the Andaman Sea off south-eastern Myanmar (Fig. 4) at depths of 41–335 m; apparently excluded from the Persian Gulf.
Lepidotrigla psolokerkos new species
Proposed vernacular: Skinny Gurnard
Etymology. The name psolokerkos is a conjunction of the Greek psolos for “dirt” and “kerkos” for tail in reference to the distinctive grey blotch dorsoposteriorly on the caudal fin of this species.
Distribution. Known only from the two type specimens collected in the Andaman Sea off south-eastern Myanmar (Fig. 4) at depths of 151–255 m.
Martin F. Gomon and Peter N. Psomadakis. 2018. Review of the Lepidotrigla Gurnards (Teleostei: Scorpaeniformes: Triglidae) in the Bay of Bengal and Andaman Sea off Myanmar with A Description of A New Species. RAFFLES BULLETIN OF ZOOLOGY. 66; 66–77. lkcnhm.nus.edu.sg/app/uploads/2018/01/66rbz066-077.pdf