Abstract
Phenacoscorpius longicaudalis sp. nov. is described from 19 specimens collected in depths of 228–990 m off Western Australia, eastern Indian Ocean. The new species is distinguished from other congeners by the following combination of characters: pectoral-fin rays 17–19 (mode 18), middle rays branched; palatine teeth absent; second preopercular spine small; lateral lacrimal spine usually absent; head width 14.7–16.9 (mean 15.4) % of SL; snout length 9.9–11.0 (10.5) % of SL; orbit diameter 13.4–16.1 (15.1) % of SL; caudal-fin length 25.6–29.5 (27.6) % of SL; and caudal-peduncle length 19.1–23.8 (20.6) % of SL. In addition, five specimens of the Indo-West Pacific species Phenacoscorpius adenensis, also collected off Western Australia, are described, the specimens representing the first records of the species from the southeastern Indian Ocean.
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Acknowledgement
We are especially grateful to A. Graham and J. Pogonoski (CSIRO), M. Gomon and D. Bray (NMV), and G. Moore and M. Allen (WAM) for opportunities to examine specimens and providing color photographs, and to G. Hardy (Ngunguru, New Zealand) for reading the manuscript and assisting with English. This study was supported in part by JSPS KAKENHI Grant Numbers 20H03311 and 21H03651; the JSPS Core-to-core CREPSUM JPJSCCB2020009; and the “Establishment of Glocal Research and Education Network in the Amami Islands” project of Kagoshima University adopted by the Ministry of Education, Culture, Sports, Science and Technology, Japan.
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Wibowo, K., Motomura, H. Phenacoscorpius longicaudalis, a new species of scorpionfish (Teleostei: Scorpaenidae) from Western Australia, with first records of Phenacoscorpius adenensis from the southeastern Indian Ocean. Ichthyol Res 69, 372–380 (2022). https://doi.org/10.1007/s10228-021-00849-8
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DOI: https://doi.org/10.1007/s10228-021-00849-8