Shihab I, Gopalakrishnan A, Vineesh N, Muktha M, Akhilesh K V, Vijayagopal P
Marine Biotechnology Division, ICAR-Central Marine Fisheries Research Institute, P. B. No. 1603, Ernakulum North, P. O., Kochi, 682 018, Kerala, India.
J Fish Biol. 2017 Jun;90(6):2402-2411. doi: 10.1111/jfb.13324. Epub 2017 May 4.
The fourfinger threadfin Eleutheronema tetradactylum is reported as a protandrous hermaphrodite from Australian waters, while being a gonochorist in reports from Singapore and India, with a single report of protandrous hermaphroditism from the latter. Histological analysis of gonads of fish from Indian waters confirms protandrous hermaphroditism in E. tetradactylum. The study was based on 480 fish examined from eight locations along the Indian coast. Mean total length (L ) of male fish was 240 mm with the transition to female starting from 280 mm L . Specimens confirmed as mature females were >380 mm L .
四指马鲅（Eleutheronema tetradactylum）在澳大利亚海域被报道为雄性先熟的雌雄同体鱼类，而在新加坡和印度的报道中则是雌雄异体，印度仅有一篇关于雄性先熟雌雄同体的报道。对印度海域鱼类性腺的组织学分析证实了四指马鲅存在雄性先熟雌雄同体现象。该研究基于对印度沿海八个地点的480条鱼进行的检查。雄鱼的平均全长（L）为240毫米，从全长280毫米开始向雌鱼转变。经确认的成熟雌鱼标本全长>380毫米。
