Kampylaster claireae Mah 2023, n. sp.
Kampylaster claireae n. sp. FIGURE 7A–E Etymology The species epithet claireae is named for Claire E. Christian, Executive Director of the Antarctic and Southern Ocean Coalition in honor of her efforts to protect the Antarctic and Southern Ocean environment. Diagnosis Distinguished by stellate body...
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| Format: | Other/Unknown Material |
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Zenodo
2023
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| Online Access: | https://doi.org/10.5281/zenodo.8090128 http://treatment.plazi.org/id/03C387E86628FFF9FF68E7CF829CF866 |
| Summary: | Kampylaster claireae n. sp. FIGURE 7A–E Etymology The species epithet claireae is named for Claire E. Christian, Executive Director of the Antarctic and Southern Ocean Coalition in honor of her efforts to protect the Antarctic and Southern Ocean environment. Diagnosis Distinguished by stellate body form (R/r=2.0–2.2), arms triangular (Fig. 7A). Granules on actinolateral edge of inferomarginal plates, bullet-like in shape (cylindrical with blunt tips) (Fig. 7C). At R=1.4, 4–6 abactinal granules counted along a 1.0 mm line. Actinal plates imbricate, tissue covered, with thorny spines, 1–3, widely spaced. Furrow spines, 2 or 3, arranged in transverse series (Fig. 7E). Comments One specimen in CASIZ 163128 had an unidentified crustacean molt in the process of being digested by the pyloric stomach. This suggests that this species is either a detritivore or possibly displays predatory habits. Occurrence South Shetland Islands and Ross Sea, 2672–3020, 2212–2306 m. Description Body stellate or weakly stellate (R/r=1.6–2.1), strongly arched, actinal surface convex. Disk thick, arms short, triangular in cross-section, interradial arcs curved (Fig. 7A). Abactinal plates imbricate, flat and scalar, round (Fig. 7B). Plate size largely homogeneous on radial, interradial areas, surface flat to weakly convex. Plates number approximately 10 to 20 across each arm at base from superomarginal to superomarginal at R=1.5 (Fig. 7A). Coarse, bullet-shape to round granules, 4 to 5 counted along a 1.0 mm line, heterogeneous in shape with some twice the size of others. Granules cover surface evenly obscuring plate boundaries. Papular pores single, 4 to 10 proximally along each arm. Madreporite triangular, convex, sulci well-developed, flanked by six imbricate plates. Marginals, approximately 36–40 per interradius, arm tip to arm tip (R=~1.5), superomarginals round to quadrate in shape, imbricating with adjacent superomarginals (Fig. 7B). Superomarginals similar in size and shape to adjacent abactinal plates, surface weakly convex to flat. ... |
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