New Species of Caelorinchus (Macrouridae, Gadiformes, Teleostei) from Taiwan, with a Redescription of Caelorinchus brevirostris Okamura
A new species and a rare species of macrourid fishes are described from the upper continental slope off northeastern Taiwan at depths between 400 and 800 m. Caelorinchus leptorhinus n. sp. is most closely similar to Caelorinchus macrorhynchus (Smith and Radcliffe), differing mainly in having the underside of the snout almost entirely naked, in contrast to fully scaled in C. macrorhynchus, and some differences in proportional measurements. Caelorinchus brevirostris Okamura, previously known only from the holotype taken in the southern Ryukyu Islands, is redescribed from 11 specimens collected off northeastern Taiwan.Abstract

Caelorinchus leptorhinus n.sp. Holotype, ASIZP0061344, 246 mm HL, 850+ mm TL, from the northeastern coasts of Taiwan in 400–600 m

Caelorinchus leptorhinus. Scale from region below first dorsal fin (above lateral line). Scale bar represents 1.5 mm

Caelorinchus leptorhinus. Holotype, ventral view, showing almost entirely naked underside of snout

Caelorinchus brevirostris, ASIZP 0061350 (48.8 mm HL, 216+ mm TL), from the northeastern coasts of Taiwan in 400–600 m

Caelorinchus brevirostris, ASIZP0061350 (48.8 mm HL). Scale from nape. Scale bar represents 1.0 mm
Contributor Notes
(MLC, KTS) Institute of Zoology, Academia Sinica, Nankang, Taipei, Taiwan, Republic of China; (MLC) Department of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China; and (TI) Department of Ichthyology, California Academy of Sciences, San Francisco, California 94118. (KTS) zoskt@gate.sinica.edu.tw Send reprint requests to KTS.