Spinarcturus Kensley 1978 ...
Spinarcturus Kensley, 1978 Spinarcturus Kensley, 1978a: 135. Type species. Spinarcturus natalensis Kensley, 1978, by original designation and monotypy. Diagnosis. Pereonites 2–4 with prominent sublateral and lateral spines; pereonites 5–7 with prominent lateral spines; pleonite 3 with pair of acute...
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Zenodo
2015
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| Online Access: | https://dx.doi.org/10.5281/zenodo.6109377 https://zenodo.org/doi/10.5281/zenodo.6109377 |
| Summary: | Spinarcturus Kensley, 1978 Spinarcturus Kensley, 1978a: 135. Type species. Spinarcturus natalensis Kensley, 1978, by original designation and monotypy. Diagnosis. Pereonites 2–4 with prominent sublateral and lateral spines; pereonites 5–7 with prominent lateral spines; pleonite 3 with pair of acute sublateral spines, longer and stouter than other spines; pleotelson unarmed. Eyes present. Male pleopod 1 exopod with area of fine setae about one third along, groove weakly defined. Oostegites 5 apparent as pair of small flaps on anterior margin of pereonite 5. Remarks. The genus, represented by one species, is included in the new family largely because of the absence of ‘filter setae’, the covering of setules and the short uropodal rami. It differs from the other two in not having an obvious groove on the posterior face of the male pleopod 1 but instead a broad proximal depression filled with fine setae. This resembles the structure seen in species of Arcturus (family Arcturidae), e.g., A. baffini (Sabine, 1824) ... : Published as part of Poore, Gary C. B., 2015, Thermoarcturidae, a new crustacean family of three genera (Isopoda: Valvifera), pp. 409-418 in Zootaxa 4007 (3) on page 412, DOI: 10.11646/zootaxa.4007.3.7, http://zenodo.org/record/245508 ... |
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