Echinoderes, Claparede, 1863
publication ID |
https://doi.org/ 10.5281/zenodo.4502533 |
publication LSID |
lsid:zoobank.org:pub:819AC644-37BC-43DB-8E11-984D77804AFE |
DOI |
https://doi.org/10.5281/zenodo.4502598 |
persistent identifier |
https://treatment.plazi.org/id/03D187A7-DA26-4E1C-3B43-FB94FE3AFCE8 |
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Carolina |
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Echinoderes |
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Echinoderes sp. 1
Material examined. Two specimens of an unknown species, Echinoderes sp. 1, were collected at station SI-03. One specimen was mounted for SEM, but was useless for examination. The other was mounted for LM ( Fig. 10 View Fig A–E), and deposited at the Natural History Museum of Denmark, under catalogue number ZMUC KIN- 855.
Descriptive notes. Female Echinoderes ( Fig. 10A View Fig ) with middorsal spines on segments 4 and 6 ( Fig. 10C View Fig ), and laterodorsal tubes on segment 10. Ventral side with ventrolateral tubes on segment 2 ( Fig. 10B View Fig ), lateroventral tubes on segment 5, lateroventral spines on segments 6, 8 and 9, but not on 7, and lateral accessory tubes on segment 8 ( Fig. 10D View Fig ). Tergal extensions, triangular, with curved external margins, and almost straight, serrated/hairy inferior margins ( Fig. 10E View Fig ). Glandular cell outlets of type 2 are not present.
The observed spine pattern quite clearly reveals that the species is new to science. Only two other species, namely, Echinoderes bispinosus Higgins, 1982 and Echinoderes astridae Sørensen, 2014 , have their middorsal spines restricted to segments 4 and 6, but both species have lateroventral spines on segments 6 to 9, segment 7 included (see Higgins, 1982; Sørensen, 2014). Echinoderes bispinosus furthermore lacks tubes in any position on segment 8, whereas the tubes on segment 8 in E. astridae are located in sublateral position. Also the lateral spine pattern in Echinoderes sp. 1, with lateroventral spines on segments 6, 8 and 9, but not on 7, is unique among all species of Echinoderes .
With the shared presence of middorsal spines on segments 4 and 6, and a similarity in general habitus, it is not unlikely that Echinoderes sp. 1 represents a Southeast Asian relative to E. bispinosus and E. astridae . Echinoderes astridae is known from São Sebastião in Brazil only ( Sørensen, 2014), whereas E. bispinosus is described from Bermuda ( Higgins, 1982). A species very similar to E. bispinosus was furthermore quite recently reported from Turkey (Sönmez et al., in press), but the geographic distance between Bermuda and the East Mediterranean suggests that the Turkish record represents a similar, but yet new species.
ZMUC |
Zoological Museum, University of Copenhagen |
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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