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Helcogramma melanolancea, a new triplefin (Perciformes: Tripterygiidae) from Bali, Indonesia

  • Satokuni Tashiro
  • Hiroyuki Motomura
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Abstract

The new triplefin Helcogramma melanolancea sp. nov. (Perciformes: Tripterygiidae), described from five specimens collected from Bali, Indonesia, most closely resembles Helcogramma rhinoceros Hansen 1986 in having a dermal prolongation on the tip of the upper lip in males (absent in females, although represented by a distinct bump), but is distinguished from the latter by the following features: second dorsal-fin spines 13 or 14 [vs. 14–16 (mode 15) in the latter]; anal-fin soft rays 18–20 [vs. 19–22 (rarely 19 and 22)]; pored lateral-line scales 18 or 19 [vs. 18–24 (usually 19–22), rarely 18]; scale rows in longitudinal series 37 or 38 (vs. 39–42); anterior medial supratemporal canal with a single pore (vs. branched canal with more than two pores); interorbital space narrow, its width 1.8–2.1% SL (vs. 1.7–2.6%); upper-jaw length 11.5–13.3% SL (vs. 10.9–14.4%); postorbital length 11.9–13.3% SL (vs. 10.8–12.8%); head and body blackish in mature males, except for upper half of head, and anterodorsal region of body pale (vs. body entirely reddish, except for blackish regions from lower half of head to pectoral-fin base and around pelvic-fin base); second and third dorsal fins each with three blackish bands in mature males (vs. spotted melanophores forming a single band along distal margin of each fin); pectoral fin entirely blackish in mature males (vs. lower half of fin blackish, remainder translucent); anal and caudal fins entirely blackish in mature males (vs. reddish); anal-fin base and lower caudal peduncle with seven or eight and a single brown blotch, respectively, in females and young males (vs. blotches absent).

Keywords

Description Helcogramma rhinoceros Sexual dimorphism Nuptial coloration 

Notes

Acknowledgments

We are most grateful to A. Suzumoto and L. O’Hara (BPBM) for their kind hospitality during our stay at BPBM. We are also grateful to H. Senou (KPM), G. Shinohara and M. Nakae (NSMT), and J. Williams and D. Pitassy (USNM) for opportunities to examine specimens and curatorial assistance, G. Hardy (Ngunguru, New Zealand) for English corrections and helpful comments on the manuscript, and members of KAUM for curatorial assistance. This study was supported in part by a Grant-in-Aid for JSPS Fellows (DC2: 16J09608) to the first author; JSPS KAKENHI Grant Numbers 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.

References

  1. Allen GR, Erdmann MV (2012) Reef fishes of the East Indies. Vols 1–3. Tropical Reef Research, PerthGoogle Scholar
  2. Chiang M-C, Chen I-S (2012) A new species of the genus Helcogramma (Blenniformes, Tripterygiidae) from Taiwan. Zookeys 216:57–72Google Scholar
  3. Fricke R (1997) Tripterygiid fishes of the western and central Pacific (Teleostei). Koeltz Scientific Books, KoenigsteinGoogle Scholar
  4. Fricke R (2017) Helcogramma atauroensis, a new species of triplefin from Ataúro Island, Timor-Leste, eastern Indian Ocean. J Ocean Sci Found 26:34–45Google Scholar
  5. Hansen PEH (1986) Revision of the tripterygiid fish genus Helcogramma, including descriptions of four new species. Bull Mar Sci 38:313–354Google Scholar
  6. Holleman W (2007) Fishes of the genus Helcogramma (Blennioidei: Tripterygiidae) in the Western Indian Ocean, including Sri Lanka, with descriptions of four new species. Smithiana Bull 7:51–81Google Scholar
  7. Holleman W, Bogorodsky SV (2012) A review of the blennioid fish family Tripterygiidae (Perciformes) in the Red Sea, with description of Enneapterygius qirmiz, and reinstatement of Enneapterygius altipinnis Clark, 1980. Zootaxa 3152:36–60Google Scholar
  8. McCulloch AR, Waite ER (1918) Some new and little-known fishes from South Australia. Rec South Aust Mus 1:39–78Google Scholar
  9. Motomura H, Kuriiwa K, Katayama E, Senou H, Ogihara G, Meguro M, Matsunuma M, Takata Y, Yoshida T, Yamashita M, Kimura S, Endo H, Murase A, Iwatsuki Y, Sakurai Y, Harazaki S, Hidaka K, Izumi H, Matsuura K (2010) Annotated checklist of marine and estuarine fishes of Yaku-shima Island, Kagoshima, southern Japan. In: Motomura H, Matsuura K (eds). Fishes of Yaku-shima Island – A World Heritage island in the Osumi Group, Kagoshima Prefecture, southern Japan. National Museum of Nature and Science, Tokyo, pp 65–247Google Scholar
  10. Sabaj MH (2016) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an online reference. Version 6.5 (16 August 2016). American Society of Ichthyologists and Herpetologists, Washington, DCGoogle Scholar
  11. Tashiro S (2013) Helcogramma rhinoceros. In: Motomura H, Dewa S, Furuta F, Matsuura K (eds) Fishes of Iou-jima and Take-shima islands, Mishima, Kagoshima, Japan. Kagoshima University Museum, Kagoshima and National Museum of Nature and Science, Tsukuba, pp 298–299Google Scholar
  12. Tashiro S (2018) Tripterygiidae. In: Motomura H, Hagiwara K, Senou H, Nakae M (eds) Identification guide to fishes of the Amami Islands, Japan. Kagoshima University Museum, Kagoshima, Yokosuka City Museum, Yokosuka, Kanagawa Prefectural Museum of Natural History, Odawara, and National Museum of Nature and Science, Tsukuba, pp 295–307Google Scholar
  13. Tashiro S, Motomura H (2014) The validity of Helcogramma ishigakiensis (Aoyagi, 1954) and a synopsis of species of Helcogramma from the Ryukyu Islands, southern Japan (Perciformes: Tripterygiidae). Species Divers 20:97–110Google Scholar
  14. Williams JT, Howe JC (2003) Seven new species of the triplefin fish genus Helcogramma (Tripterygiidae) from the Indo-Pacific. Aqua 7:151–176Google Scholar

Copyright information

© The Ichthyological Society of Japan 2018

Authors and Affiliations

  1. 1.The United Graduate School of Agricultural SciencesKagoshima UniversityKagoshimaJapan
  2. 2.The Kagoshima University MuseumKagoshimaJapan

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