The rediscovery ofCodonorchis octaedrus(Hydroidomedusae, Anthomedusae, Pandeidae), with an update of the Mediterranean hydroidomedusan biodiversity
作者:
Ferdinando Boero,
Cinzia Gravili,
Francesco Denitto,
MariaPia Miglietta,
Jean Bouillon,
期刊:
Italian Journal of Zoology
(Taylor Available online 1997)
卷期:
Volume 64,
issue 4
页码: 359-365
ISSN:1125-0003
年代: 1997
DOI:10.1080/11250009709356223
出版商: Taylor & Francis Group
关键词: Hydrozoa;Life cycle;Evolution;Biodiversity;Ecology;Behaviour;Adriatic Sea;Ionian Sea
数据来源: Taylor
摘要:
Codonorchis octaedrusis recorded for the first time since its discovery by Haeckel in 1879. A hydroid colony collected in a cave of the Apulian Coast (between the Ionian and the Adriatic Seas) produced several medusae which have been reared to maturity. This is the first complete description of the species, which was previously considered as doubtful, as was the genusCodonorchis. The diagnostic features for the genus are: hydroid small, naked, sessile, with a single row of few tentacles, gono‐phores on hydrorhiza, medusa with apical projection with apical process from the manubrium, perradial, interradial and adradial ocellate bulbs, two perradial tentacles, horseshoe‐shaped interradial gonads, small mesenteries. The list of Mediterranean hydroidomedusae is updated with the new (or overlooked) records since the last published list (1993). The increase in species number is great (about 10%), showing that the knowledge of biodiversity of even a well‐studied sea as the Mediterranean is far from being complete.
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