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Abudefduf nigrimargo, a new species of damselfish (Perciformes: Pomacentridae) from Taiwan

  • Kunto Wibowo
  • Keita Koeda
  • Nozomu Muto
  • Hiroyuki Motomura
Full Paper

Abstract

A new species of damselfish, Abudefduf nigrimargo (Pomacentridae), is described on the basis of six specimens (91.8–119.5 mm standard length; SL) from Taiwan. Although similar to A. caudobimaculatus Okada and Ikeda 1939, A. saxatilis (Linnaeus 1758), A. troschelii (Gill 1862) and A. vaigiensis (Quoy and Gaimard 1825) in having five dark bands on the lateral surface of the body with yellowish interspaces dorsally, the new species can be distinguished from the others by the following combination of characters: 18–19 (mode 19) pectoral-fin rays; 20–23 (22) tubed lateral-line scales; 7–8 (7) + 14–16 (16) = 21–24 (23) gill rakers; relatively greater body depth and longer pectoral-fin length [57.3–60.8% (mean 59.0%) of SL and 36.8–40.8% (38.5%) of SL, respectively]; 5 scale rows on cheek; scales on suborbit, usually continuous over basal area of lacrimal; many scales on anteroventral region of head; scale covering on preopercle and interopercle continuous; scales on dorsal and lateral body surfaces with blackish margin (indistinct in subadult), second and third black bands on body not extending dorsally onto membranes of spinous dorsal fin; anterior and upper margins of fourth black band usually level with sixth dorsal-fin soft ray base and not extending onto small scales on the dorsal-fin base, respectively; and caudal-fin base without black spots.

Keywords

Abudefduf caudobimaculatus Abudefduf vaigiensis Taxonomy Coloration Morphology 

Notes

Acknowledgments

We are especially grateful to H.-C. Ho (National Museum of Marine Biology & Aquarium, Taiwan) for the opportunity to work on fish samples from Taiwan, N. Cahyani (University of California, Los Angeles) for providing literature and G. Hardy (Ngunguru, New Zealand) for reading the manuscript and providing help with English. KW gratefully acknowledges a Program for Research and Innovation in Science and Technology (RISET-Pro) scholarship, provided by the Ministry for Research, Technology and Higher Education, Republic of Indonesia. This study was supported in part by a JSPS Overseas Research Fellowship (29-304) (awarded to the 2nd author), a Grant for Environmental Research Projects from The Sumitomo Foundation (3rd author) and JSPS KAKENHI Grant Numbers JP19770067, JP26241027, JP24370041, JP23580259 and JP26450265; the JSPS Core-to-Core Program: B Asia–Africa Science Platforms; the “Biological Properties of Biodiversity Hotspots in Japan” project of the National Museum of Nature and Science, Tsukuba, Japan; “Establishment of Research and Education Network on Biodiversity and Its Conservation in the Satsunan Islands” project of Kagoshima University adopted by the Ministry of Education, Culture, Sports, Science and Technology, Japan; and the “Island Research” project by Kagoshima University (4th author).

Supplementary material

10228_2018_634_MOESM1_ESM.xlsx (58 kb)
Supplementary material 1 (XLSX 58 kb)

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Copyright information

© The Ichthyological Society of Japan 2018

Authors and Affiliations

  1. 1.Graduate School of FisheriesKagoshima UniversityKagoshimaJapan
  2. 2.Research Center for Oceanography, LIPI, Jl. Pasir Putih I, Ancol TimurJakartaIndonesia
  3. 3.National Museum of Marine Biology & AquariumPingtungTaiwan
  4. 4.Department of Marine Biology and Sciences, School of Biological SciencesTokai UniversitySapporoJapan
  5. 5.The Kagoshima University MuseumKagoshimaJapan

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