Plakinastrella onkodes Uliczka, 1929
publication ID |
https://doi.org/ 10.11646/zootaxa.3805.1.1 |
publication LSID |
lsid:zoobank.org:pub:F0B7652D-6E64-44CE-9181-5A10C8D594C7 |
DOI |
https://doi.org/10.5281/zenodo.6130241 |
persistent identifier |
https://treatment.plazi.org/id/C23A87C6-FFBF-FFD6-FF11-F9031F4DF88A |
treatment provided by |
Plazi |
scientific name |
Plakinastrella onkodes Uliczka, 1929 |
status |
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Plakinastrella onkodes Uliczka, 1929 View in CoL
( Figure 6 View FIGURE 6 )
Synonymy and references. Plakinastrella onkodes Uliczka, 1929 : Zea (1987): 227, fig. 83, pl. 13: 9.
Material. USNM 1228890, Carrie Bow Cay, back reef near reef crest, underside of Acropora palmata coral rubble, 0.3 m; K. Ruetzler col. 23 Apr 1974. USNM 1228891, Carrie Bow Cay reef flat, under Porites porites and Acropora cervicornis coral rubble, 0.5 m; K. Ruetzler col. 29 Jan 1986. USNM 1228892, 1228893 Curlew Bank, forereef cave, 20 m; C. Piantoni col. 29 Jun 2007. USNM 1228894 Curlew Bank, forereef cave, 20 m; C. Piantoni col. 2 Jul 2007. USNM 1228895, Carrie Bow Cay South, back reef, lower surface of rock slab, 1 m; K. Ruetzler col. 13 Mar 0 9. USNM 1228896 Curlew Bank, forereef slope framework cave, 20 m; C. Piantoni & M. Parrish, col. 22 Aug 2012. USNM 1228897 Curlew Bank, forereef slope framework cave, 18 m; C. Piantoni & M. Parrish, col. 23 Aug 2012.
External morphology. Encrusting, 4–20 mm thick, with a few oscula (up to 2 mm diameter) irregularly dispersed, some elevated on cone-shaped lobes. Horizontal spread to about 30 cm 2; parts of the body may be covered by crustose coralline algae. Surface slightly rough to the touch, consistency tough elastic. Color cream, orange, bluish or blackish brown; no dark exudates upon preservation.
Skeleton structure. The ectosome shows a dense reticulation of small diactines (diods), some protruding brush-like from the surface. The choanosome is also very dense with spicules, some in mesh-like formation, many without specific orientation.
Spicules. Diods occur in a great size range, most with the characteristic (for the group) kinks or swellings at or near the center: 20–175 x <1–8 (92 x5) Μm. They are accompanied by delicate triods and more robust calthrops; triods: 35–75 (57) Μm; calthrops: 35–75 (51) Μm. Despite similar overall size and lengths of rays, the bases of rays average 4.8 Μm in triods, 6.2 Μm in calthrops.
Ecology. On the lower surfaces of back-reef coral plates and rubble and inside forereef caves, 0.3– 20 m.
Distribution. Common throughout the Caribbean region.
USNM |
Smithsonian Institution, National Museum of Natural History |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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