Stylasteridae

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What are the Stylasteridae? At first glance members of the Stylasteridae appear very similar to stony corals. This is only superficial, commonly known as lace corals due to the delicately branched calcified skeletons they produce, they are actually hydrozoan corals. Hydrozoan corals have two different polyps, both with distinct functions. A large feeding polyp or gastrozooid collects zooplankton from the water, is surrounded by many smaller polyps. These defensive polyps or dactylozooids contain the stinging cells and defend the coral from predators. The sting At first glance is so strong that some tropical Stylasteridae are known as you could be ‘fire corals’. forgiven for mistaking the Where can they be found? calcified lace The dominant cold-water genera within the Stylasteridae are corals to be Stylasteridae Stylaster, Distichopora and Pliobothrus. Stylaster species occur in many of the major oceans of the world and are often stony corals, seen within octocorals gardens. Distichopora species are but they are found in the Indo-west pacific, North Pacific, Galapagos Islands and the west Atlantic. very different.. Stylaster and Pliobothrus are also frequently found among stony coral reefs, such as along the western slope of the Porcupine Bank and within the Denmark Strait (between Greenland and Iceland). Hydrozoan corals Hydrozoan corals are more closely related to jellyfish than the Scleractinia. All members of the Hydrozoa are colonial and have polyps which perform different functions. One similarity shared with the Scleractinia is the production of a calcareous skeleton. But the skeletons are delicate and do not often grow more than a few tens of centimetres. What are the pictures? Images from top: Fresh growth of lace coral (Stylaster) attached to a boulder, Porcupine Seabight (© Ifremer & AWI, 2003). Lace corals stand out as a bright white among the various colours of an octocoral garden, Por- cupine Seabight (© Ifremer & AWI, 2003). The delicate and intricate branching of a species from the genus Stylaster, collected from the Porcupine Seabight (© Ifremer & AWI, 2003). This fact-sheet was downloaded from http://www.lophelia.org and produced for the Deep- sea Conservation for the United Kingdom Project. .

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(1880, Pp. 83-88) Published a "List of All the Species O
LIST OF THE DESCRIBED SPECIES OF THE ORDER STYLASTERINA by H. BOSCHMA Moseley (1880, pp. 83-88) published a "List of all the Species of Stylaste- ridae at present known", remarking that this list is not to be regarded as constituting a revision of the species, but represents an attempt to draw attention to all the species of which an account has been published. This list, which was prepared with the assistance of Dr. F. Brüggemann, of the British Museum, contains sixty species, arranged in twelve genera. The present list contains about one hundred described species of Stylaste- rina in addition to those mentioned by Moseley. Here again the genera are arranged according to the apparently natural system, while within each genus the species are placed in alphabetical order, an arbitrary arrangement being indicated because generally too little is known about the relationship of the different forms, even when representing species with well-defined characters. In the present paper the data are compiled in the manner of lists of synonyms, with notes indicating the geographical distribution or pointing to apparent mistakes. These lists of names are partly based on data that cannot be checked with respect to their reliability; therefore, numerous mis- identifications are included. Only evident errors are expressly noted. When the identity of a described species with an earlier described form has been fully established, the former has been placed in the synonymy of the latter; when definite proof seems to be lacking it is noted in square brackets that a certain author has the opinion that one name is a synonym of another.
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