Leucothoe weddellensis Krapp-Schickel & Broyer 2014, sp. nov.
Leucothoe weddellensis sp. nov. urn:lsid:zoobank.org:act: 2069CF2D-D7B6-4A96-874A-46818C6A3344 Figs 19-27 sub L. spinicarpa variant 1 – Holman & Watling 1983: 227-230 fig. 10 (but see also discussion about L. spinicarpa variant 1 and 2). Etymology The latinized adjective refers to the fact that...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://zenodo.org/record/3861087 https://doi.org/10.5281/zenodo.3861087 |
| Summary: | Leucothoe weddellensis sp. nov. urn:lsid:zoobank.org:act: 2069CF2D-D7B6-4A96-874A-46818C6A3344 Figs 19-27 sub L. spinicarpa variant 1 – Holman & Watling 1983: 227-230 fig. 10 (but see also discussion about L. spinicarpa variant 1 and 2). Etymology The latinized adjective refers to the fact that much of the material comes from the Weddell Sea. Type material Holotype ♀ ov. 20 mm (in alcohol) (RBINS, Brussels, I.G. 31073/ INV. 103464); Polarstern ANT XIX/3 (ANDEEP I): sta. PS61/067 GSN; 4 Feb. 02; Scotia Sea, north to Elephant Island; 60°55’53”S, 55°27’38”W to 60°55’09”S, 55°24’50”W; 115-182 m; bottom trawl; coll. C. De Broyer, P. Dauby & F. Nyssen. Preliminary remarks Before starting to cite the localities, we have to explain the division in two parts: Quite like Holman & Watling (loc. cit.) we hesitated between attributing the entire material to one species, or dividing the material into two new species. Like the cited authors we first separated the material into two different size classes with large or small ovigerous females, but then could not find any clearcut morphological definition which would not show here or there intermediate structures. Unfortunately, we have no clue about the life span of these females and how often they become ovigerous, thus all the observed tiny differences could also be due to allometry. Therefore we kept the locality citations separated and first gave information about the smaller specimens, followed by the larger ones. This might help to continue gathering observations within this so puzzling genus. Diagnosis for the material of 6-14 mm length Eyes big, round. Mandibular palp ratio art. 3:art. 2 = 0.6. Cx 3 tongue-shaped rounded, smooth. Gn 1 propodus l:w = 5, dactylus reaching 1/4-1/3 of propodus length. P 5-7 basis narrow oval, P 5, 6 with slightly concave hind margin, P 7 hind margine serrate, ratio l:w about 2. Ep 2, 3 posterodistally with small rounded upturned corner. T l:w = 3. Additional smaller specimens Australian Museum, Sydney P. 25977: 1 Feb. 1971; Ross ... |
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