Astrangia sp.
publication ID |
https://doi.org/ 10.11646/zootaxa.1018.1.2 |
publication LSID |
lsid:zoobank.org:pub:02411A3D-C81F-4E3D-A24F-8D07FF9A64C4 |
persistent identifier |
https://treatment.plazi.org/id/0D5E87EC-A313-0A00-9376-0335C5CE08F3 |
treatment provided by |
Felipe |
scientific name |
Astrangia sp. |
status |
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Fig. 1C View FIGURE 1
New Record. — Juan Fernández Islands , Chile, depth unknown, Dec 1926, 1 colony of 18 corallites, USNM 1021962 View Materials .
Remarks. —This is the first record of Astrangia from Chile, although its occurrence here is not unexpected, as the shallowwater rhizangiids, including Astrangia , Culicia , and Oulangia , are the most common type of Scleractinia in the shallowwater tropical and warm temperate eastern Pacific (see Durham & Barnard 1952, Cairns 1994). The taxonomy of the eastern Pacific Astrangia is extremely confused ( Cairns 1994) and thus no attempt is made to identify this single corallum, however an illustration and short description is provided below. Another specimen of Astrangia , consisting of about 20 corallites was collected at Cumberland Bay, Isla Róbinson Crusoe at an unknown depth in 1894. It is deposited at the Zoologisches Museum Berlin (5657) pers. comm. (H. Zibrowius 2004).
The specimen reported herein consists of 18 corallites encrusting a small rock 2.8 cm in width. The largest and best preserved corallite is 4.0 x 3.8 mm in CD and 5.3 mm in height. Corallites are light brown and have low, granular costae. The septal complement of the largest corallite is 8:8:16, resulting in 32 septa. The fossa is fairly deep and all septa bear several elongate teeth on their lower axial margins.
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