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Egg capsule morphology of Parascyllium variolatum (Duméril, 1853) (Chondrichthyes; Parascylliidae), with notes on oviposition rate in captivity
Author(s) -
Caruso J.,
Bor P. H. F.
Publication year - 2007
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2007.01431.x
Subject(s) - biology , captivity , chondrichthyes , capsule , anatomy , zoology , french horn , fish <actinopterygii> , fishery , botany , psychology , pedagogy
The egg capsule of Parascyllium variolatum is described for the first time, based on 57 eggs laid by three captive fish over a 167 day study period at Melbourne Aquarium. The egg capsule is bulbous, bearing two elongated horns. An indistinct or rudimentary third horn may be present. Aprons present; fibres present; small lateral fringes present. Notes on oviposition rates are also discussed and were shown to vary from 12 to 39 days with one or two eggs being deposited each time.