AI Article Synopsis
- - A new species of roughy fish from the genus Hoplostethus, specifically the subgenus Leiogaster, has been identified based on three specimens from Sumatra, Indonesia.
- - This new species can be recognized by specific features such as the gular region having ctenoid scales, a smooth pelvic-fin spine, and distinct measurements of the head and pectoral fins.
- - The study also includes a detailed comparison with similar species and discusses the diagnostic traits of related species like Hoplostethus rubellopterus and Hoplostethus melanopus.
Article Abstract
A new species of the roughy fish genus Hoplostethus, subgenus Leiogaster, is described based on three specimens collected from Sumatra, Indonesia. This species can be distinguished from its congeners by the following characteristics: gular region covered with ctenoid scales; pelvic-fin spine smooth on its anterior edge; head depth subequal or smaller than its length (37.2%-38.6% standard length [SL], or 94.7%-99.2% head length [HL]); pectoral-fin length 35.6%-37.8% SL, reaching beyond a vertical through anal-fin origin; abdominal scutes well developed, 12-16; pectoral-fin rays uniformly black, 17-19; gill rakers on the first arch 6-7 + 1 + 13-14 = 21; pre-dorsal scales 24-27; and pyloric caeca 32. A detailed description is provided along with comparisons with its congeners. Additionally, diagnostic characters of the congeners and literature records of Hoplostethus rubellopterus and Hoplostethus melanopus are discussed.
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Article Synopsis
- - A new species of roughy fish from the genus Hoplostethus, specifically the subgenus Leiogaster, has been identified based on three specimens from Sumatra, Indonesia.
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