Saetoniscus Brandt, 2002, n. gen.

• Main Author: Brandt, Angelika
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2002
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Nannoniscidae; Saetoniscus; South Atlantic Ocean
• Online Access: https://doi.org/10.5281/zenodo.3507138; http://treatment.plazi.org/id/7B0F5E352656FFC4FA3DF9CF3374FC33

Saetoniscus n. gen. Diagnosis: Pereonites 6 and 7 dorsomedially fused. Body length about 5.5 times width of pereonite 2. Fine setules dispersed over dorsum, female with anteroventral spine on operculum. A1 5­segmented, peducular article 4 with long lateral projection. A2 flagellar article 1o longer than last peduncular one, swollen. Mandible with palp. Mxp epipod very long and slender, reaching distal margin of palp article 3. P 1­4 with stout sensory setae on ventral margins of carpus and propodus, dorsal margins with stout setae. P 5­7 with very long and slender setae ventrally; propodus with long natatory setae dorsally and tiny setules. Urp with short, slender exopod; approximately 1/4 length of endopod; exopod 1/3 width of endopod. Type species: Saetoniscus meteori n. sp. Etymology: Saetoniscus is taken from the Latin saeta , seta, referring to the long slightly plumose setae on P5­7 propodi. The gender of the name is masculine. Distribution: abyssal Angola Basin, south Atlantic Ocean, 5389 m. Remarks: Genera that most closely resemble the new genus Saetoniscus are Regabellator Siebenaller & Hessler, 1981 and Exiliniscus Siebenaller & Hessler, 1981. Regabellator , however, can easily be distinguished from Saetoniscus by the ventral spines on pereonites 6 and 7 and the missing natatory setae on P5­7. Saetoniscus has an anteroventrally directed spine on the operculum. Regabellator has natatory setae on P3­5. Natatory setae are absent in Saetoniscus . Pereonites 6 and 7 are dorsally fused in Saetoniscus and are not dorsally fused in Exiliniscus . Exiliniscus has a rostral process, which is absent in Saetoniscus . A2 peduncular article 5is swollen in Saetoniscus . A2 flagellar article 1 of Exiliniscus is long and slender. Mxp epipod of Exiliniscus is short and the uropodal exopod in this genus is minute. Published as part of Brandt, Angelika, 2002, New species of Nannoniscidae (Crustacea, Isopoda) and Saetoniscus n. gen. from the deep sea of the Angola Basin, pp. 1-36 in Zootaxa 88 on pages 11-12, ...