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Published May 15, 2018 | Version v1
Journal article Open

Pomacentrus bellipictus, a new microendemic species of damselfish (Pisces: Pomacentridae) from the Fakfak Peninsula, West Papua, Indonesia.

  • 1. Department of Aquatic Zoology, Western Australian Museum, Locked Bag 49, Welshpool DC, Perth, Western Australia 6986
  • 2. Conservation International Indonesia Marine Program, Jl. Dr. Muwardi No. 17, Renon, Denpasar 80235 Indonesia California Academy of Sciences, Golden Gate Park, San Francisco, CA 94118, USA
  • 3. Conservation International Indonesia Marine Program, Jl. Imam Bonjol – Wagom Utara, Fakfak 98611, Indonesia

Description

A new species of damselfish, Pomacentrus bellipictus, is described from 13 specimens, 37.7–67.9 mm SL, collected at the Kokas area of the Fakfak Peninsula, a portion of the Bird’s Head Peninsula of western New Guinea (West Papua Province, Indonesia). It is distinguished from most similar species in the western Pacific Ocean by having 14 instead of 13 dorsal-fin spines. It also possesses a unique facial coloration consisting of highly contrasted blue areas around the mouth and onto the isthmus, below the eye, and along the margin of the preopercle. The only other species of Pomacentrus from the region with 14 dorsal spines that are also drab-brown when alive, P. fakfakensis and P. opisthostigma, are clearly distinguished on the basis of adult and juvenile color patterns and also show different habitat preferences. In addition, P. opisthostigma is distinguished from the other two species by fewer lateral-line scales (usually 15–17 vs. usual 18–19) and more gill rakers on the first arch (26–29 vs. 18–21). The three species co-occur in the Kokas area, but occupy different habitats: Pomacentrus bellipictus inhabits rocky, wave-washed shorelines in about 1–2 m depth, while the other two species occur in deeper water. The new species is apparently endemic to the small area around the Fakfak Peninsula, where several other microendemic reef fish species have been described.

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