Japanese Journal of Ichthyology
Online ISSN : 1884-7374
Print ISSN : 0021-5090
A Larval Ipnops and Its Possible Metamorphosing Process
Muneo Okiyama
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1981 Volume 28 Issue 3 Pages 247-253

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Abstract

A remarkable postlarva of 13.9 mm in standard length collected by surface tows of a larva net from the tropical western Pacific is described in detail, with special reference to its elaborated head and pectoral fin features.On the basis of morphological close fit, this specimen is identified with the genus Ipnops, family Chlorophthalmidae.Its specific name was tentatively referred to I.agassizi.This epipelagic larva is compared with recently transformed specimens, and possible metamorphosing process is discussed in relation to their drastic habitat change.It is clear that the flattened, dorsally-directed plaques unique to Ipnops are derived from the typical laterally situated eyes in pelagic larvae.

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© The Ichthyological Society of Japan
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