The Validity of Helcogramma ishigakiensis (Aoyagi, 1954) and a Synopsis of Species of Helcogramma from the Ryukyu Islands, Southern Japan (Perciformes: Tripterygiidae) The Validity of Helcogramma ishigakiensis (Aoyagi, 1954) and a Synopsis of Species of Helcogramma from the Ryukyu Islands, Southern Japan (Perciformes: Tripterygiidae)

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Abstract

Helcogramma ishigakiensis (Aoyagi, 1954), originally described as Lepidoblennius marmoratus ishigakiensis from the Ryukyu Islands, southern Japan, and subsequently regarded as a junior synonym of Helcogramma inclinata (Fowler, 1946), is redescribed here as a valid species. Helcogramma ishigakiensis is characterized by the following combination of characters: 13–15 (modally 14) second dorsal-fin spines; 28–39 pored lateral-line scales; 4–5+1+4–6 (typically 4+1+4) mandibular pores; anterior nostril tentacle unbranched; orbital tentacle simple; nape without scales; and bases of dorsal fins and entire caudal fin reddish in mature male. A synopsis of the other species of Helcogramma occurring in the Ryukyu Islands and a key to the Ryukyu species of the genus are provided.

Helcogramma ishigakiensis (Aoyagi, 1954), originally described as Lepidoblennius marmoratus ishigakiensis from the Ryukyu Islands, southern Japan, and subsequently regarded as a junior synonym of Helcogramma inclinata (Fowler, 1946), is redescribed here as a valid species. Helcogramma ishigakiensis is characterized by the following combination of characters: 13-15 (modally 14) second dorsal-fin spines; 28-39 pored lateral-line scales; 4-5+1+4-6 (typically 4+1+4) mandibular pores; anterior nostril tentacle unbranched; orbital tentacle simple; nape without scales; and bases of dorsal fins and entire caudal fin reddish in mature male. A synopsis of the other species of Helcogramma occurring in the Ryukyu Islands and a key to the Ryukyu species of the genus are provided.

Journal

  • Species Diversity

    Species Diversity 19(2), 97-110, 2014

    The Japanese Society of Systematic Zoology

Codes

  • NII Article ID (NAID)
    110009872234
  • NII NACSIS-CAT ID (NCID)
    AA11114903
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    1342-1670
  • NDL Article ID
    025923470
  • NDL Call No.
    Z53-W570
  • Data Source
    NDL  NII-ELS  IR  J-STAGE 
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