Macrorhynchiaspecies (Cnidaria: Hydrozoa) from the Bunaken Marine Park (North Sulawesi, Indonesia) with a description of two new species

Autor: C. G. Di Camillo, Giorgio Bavestrello, Stefania Puce
Rok vydání: 2009
Předmět:
Zdroj: Italian Journal of Zoology. 76:208-228
ISSN: 1748-5851
1125-0003
Popis: Five species of Macrorhynchia from the Bunaken National Marine Park (North Sulawesi, Indonesia) are described. Three species, M. philippina, M. spectabilis and M. phoenicea were already known for the Indo‐Pacific area, M. asymmetrica and M. fulva are described as new species. Macrorhynchia asymmetrica n. sp. is easily distinguished from the other species of the genus due to the hypertrophic lateral nematotheca that is bent downwards. Macrorhynchia fulva n. sp. is distinguishable from its congeners especially through the lateral nematothecae pointing in opposite directions, the large marginal tooth, and the presence of the well‐marked adcauline teeth. The shape and the colour of living colonies are described, thereby allowing the recognition of the species directly in situ. Generally, the observed species live on the deeper portions of the reef, but M. spectabilis occurs at more shallow depths. Almost all the recorded species have an annual cycle characterised by higher abundances during the wet season whi...
Databáze: OpenAIRE