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23-1_Pseudotrichonotus caeruleoflavus

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Volume 23, Issue 1 – 18 January 2017

Gerald R. Allen, Mark V. Erdmann, Sasanti R. Suharti and Abraham Sianipar: Pseudotrichonotus caeruleoflavus, a new species of reef fish from Indonesia (Teleostei: Aulopiformes: Pseudotrichonotidae), pp. 1-10

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Description

SINGLE PAPER

Volume 23, Issue 1 – 18 January 2017

Gerald R. Allen, Mark V. Erdmann, Sasanti R. Suharti and Abraham Sianipar: Pseudotrichonotus caeruleoflavus, a new species of reef fish from Indonesia (Teleostei: Aulopiformes: Pseudotrichonotidae), pp. 1-10

Abstract

A new species of pseudotrichonotid, Pseudotrichonotus caeruleoflavus, is described from four specimens, 31.3-33.7 mm SL, collected while scuba diving in the Lesser Sunda Islands of Indonesia at southern Flores. It was also photographed at Misool in the Raja Ampat Islands of West Papua Province. The new taxon is distinguished from the other three members in the genus, P. altivelis (Japan), P. belos (northwestern Australia) and P. xanthotaenia (western Indian Ocean), on the basis of the following combination of features: dorsal rays 32-33; anal rays 13-14; pectoral rays usually 11, most middle rays branched; total caudal-fin ray elements 32; dorsal-fin origin slightly behind pelvic-fin origin, the predorsal length 37.3-38.0% SL; pelvic fins long and filamentous, 37.5-40.9% SL, first and seventh rays unbranched; colour in life translucent pinkish with blue-margined, yellow mid-lateral stripe, about seven, pupil-sized red spots from opercle to caudal-fin base, broad pinkish saddles across dorsum of head and back, and prominent black marking encompassing all or distal portion of first three dorsal-fin membranes. The new taxon occurs on sandy bottoms in 40-70 m depth, usually in areas of cool upwelling.