Cladaster analogus Fisher 1940 ...
Cladaster analogus Fisher, 1940 (Figures 8 A–D, 9A–D) Fisher, 1940: 123, fig. D, pl.4, figs. 1–3; Bernasconi, 1963: 14; Clark & Downey, 1992: 239; A.M. Clark, 1993: 251. McKnight, 2006: 95 (as Cladaster latus) Comments. Larger, more heavily calcified specimens of Cladaster analogus (e.g., USNM 1...
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Zenodo
2011
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| Online Access: | https://dx.doi.org/10.5281/zenodo.6184339 https://zenodo.org/doi/10.5281/zenodo.6184339 |
| Summary: | Cladaster analogus Fisher, 1940 (Figures 8 A–D, 9A–D) Fisher, 1940: 123, fig. D, pl.4, figs. 1–3; Bernasconi, 1963: 14; Clark & Downey, 1992: 239; A.M. Clark, 1993: 251. McKnight, 2006: 95 (as Cladaster latus) Comments. Larger, more heavily calcified specimens of Cladaster analogus (e.g., USNM 1091176, R= 5.4 cm) (Figures 8 A–D) possessed more well-developed abactinal fasciolar channels and abactinal plates, coarser and more abundant granules, and differentiation between peripheral and central plate granules that most closely resemble the holotype as indicated by Fisher (1940). Smaller specimens (e.g., USNM E38569) (Figures 9 A–D) superficially fall under the general definitions for C. analogus as outlined by Clark and Downey (1992) but, as indicated above for USNM 1091176, morphological differences are substantially pronounced relative to the larger specimen. Smaller specimens also lack abactinal pedicellariae, possess weak differentiation between different granule types, and have much fewer marginal ... : Published as part of Mah, Christopher L., 2011, Taxonomy of high-latitude Goniasteridae (Subantarctic & Antarctic): one new genus, and three new species with an overview and key to taxa, pp. 1-48 in Zootaxa 2759 on pages 19-23, DOI: 10.5281/zenodo.276783 ... |
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