All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. Ophiactis savignyi is a species of brittle star in the family Ophiactidae, commonly known as Savigny's brittle star or the little brittle star.It occurs in the tropical and subtropical parts of all the world's oceans and is thought to be the brittle star with the most widespread distribution. Features: Whole animal 1-2cm. Although the sex ratios of many groups conform to Fisher’s (1930) prediction that parents should invest equally in daughters and sons, a number of taxa are characterized by excesses of one gender. Ophiactis savignyi is a small brittle star (0.5-11.5 mm disc diameter; McGovern 2002a) with a circumtropical distribution (Mladenov & Emson 1990; Chao & Tsai 1995). They are sometimes also seen in other kinds of sponges. This page was last edited on 7 June 2020, at 03:56.
Typically, it lives in marine sponges (the animals contained within a single sponge are hereafter referred to … 5-6 arms. Files are available under licenses specified on their description page. It was first described by the German zoologists Johannes Peter Müller and Franz Hermann Troschel in 1842. Species: Ophiactis savignyi; Distribution Table Top of page. Haltungsinformationen . Central disk rarely seen outside its hiding place. Where seen?These tiny brittle stars are commonly seen in living Chocolate sponges on many of our shores. Arms banded with short spines lying flat arong the arms. There were more mature individuals in populations in which both sexes were present, and clones from these populations had fewer clone-mates than clones from single-sex populations. Using a variety of methods, I detected evidence of plastic allocation to asexual (clonal) reproduction in response to mate availability in the brittle star Ophiactis savignyi. When several references are cited, they may give conflicting information on the status. Ophiactis savignyi; Ophiactis seminuda; Ophiactis simplex; Ophiactis spinulifera; Ophiactis tricolor; Ophiactis tyleri; Ophiactis virens; Alle anzeigen Author: Meerwasser-Lexikon Team Publisher: Meerwasser-Lexikon.de. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. OPHIACTIS SAVIGNYI TAMARA M. MCGOVERN' Department of Biological Science, Florida State University, Tallahassee, Florida 32306-1100 Abstract.-Although the sex ratios of many groups conform to Fisher's (1930) prediction that parents should invest equally in daughters and sons, a number of taxa are characterized by excesses of one gender.
Ophiactis savignyi* Family Ophioactidae updated Apr 2020. It can be distinguished by its large round to oval oral papilla and its smaller radial shields.
OPHIACTIS SAVIGNYI TAMARA M. MCGOVERN1 Department of Biological Science, Florida State University, Tallahassee, Florida 32306-1100 Abstract. Ophiactis modesta is a hexamerous, fissiparous species that may be mistaken for Ophiactis savignyi. The distribution in this summary table is based on all the information available. Erstellt: 2020-03-05 12:22:08 Zuletzt bearbeitet: 2020-03-05 12:23:19 .
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