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- Title
Abudefduf nigrimargo, a new species of damselfish (Perciformes: Pomacentridae) from Taiwan.
- Authors
Wibowo, Kunto; Koeda, Keita; Muto, Nozomu; Motomura, Hiroyuki
- 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.
- Subjects
POMACENTRIDAE; ABUDEFDUF; PHYLOGENY; DORSAL root ganglia; LACRIMAL apparatus
- Publication
Ichthyological Research, 2018, Vol 65, Issue 4, p471
- ISSN
1341-8998
- Publication type
Article
- DOI
10.1007/s10228-018-0634-7