Austroniscus Vanhoeffen 1914 ...
Austroniscus Vanhoeffen, 1914 Synonymy: Nannoniscella Hansen, 1916: 84. Type species: Austroniscus ovalis Vanhoeffen, 1914 Diagnosis Body flattened and broadened; pereon and pleotelson expanded laterally in flat, marginal flanges. Rostral crest often well developed. Expansions of pereonites 1–4 ante...
| Main Authors: | , |
|---|---|
| Format: | Text |
| Language: | unknown |
| Published: |
Zenodo
2007
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.5281/zenodo.5688736 https://zenodo.org/doi/10.5281/zenodo.5688736 |
| Summary: | Austroniscus Vanhoeffen, 1914 Synonymy: Nannoniscella Hansen, 1916: 84. Type species: Austroniscus ovalis Vanhoeffen, 1914 Diagnosis Body flattened and broadened; pereon and pleotelson expanded laterally in flat, marginal flanges. Rostral crest often well developed. Expansions of pereonites 1–4 anteriorly produced. Antennula generally with 6 articles (A. chelus sp. nov. only with 7 articles), terminal article unspecialised. Pereopod 1 somewhat shorter and distally more robust than in pereopods 2–7; pereopods 5–7 not derived for swimming, with few natatory setae. Pleotelson without postlateral spines; without ventral spines on operculum or pereonites. Operculum rectangular, covering a small part of the ventral surface. Uropods short in relation to pleotelson, hardly projecting above posterior margin; uropods biramous, endo and exopodite almost of same length (modified after Hansen 1916, Siebenaller & Hessler 1981, Vanhoeffen 1914). Species composition (Table 1) Austroniscus acutus Birstein, 1970; ... : Published as part of Kaiser, Stefanie & Brandt, Angelika, 2007, Two new species of the genus Austroniscus Vanhoeffen, 1914 (Isopoda: Asellota: Nannoniscidae) from the Antarctic shelf, pp. 47-68 in Zootaxa 1394 on pages 48-56, DOI: 10.5281/zenodo.175318 ... |
|---|