Austronanus dentatus Nordenstam 1933, comb. nov.
Austronanus dentatus (Nordenstam, 1933), comb. nov. (Fig. 8) Paramunna dentata Nordenstam, 1933: 139 –141, fig. 65. Remarks on type material. Nordenstam (1933: 239) designated ' Male and female, length about 1 mm.' as 'Types', and reported (p. 241) an additional 6 specimens, all...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2006
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| Online Access: | https://zenodo.org/record/6254985 https://doi.org/10.5281/zenodo.6254985 |
| Summary: | Austronanus dentatus (Nordenstam, 1933), comb. nov. (Fig. 8) Paramunna dentata Nordenstam, 1933: 139 –141, fig. 65. Remarks on type material. Nordenstam (1933: 239) designated ' Male and female, length about 1 mm.' as 'Types', and reported (p. 241) an additional 6 specimens, all from the Swedish Antarctic Expedition 1901–1903, stn 51. We have examined a sample labelled 'Type 777 syntypes' in the Swedish Museum of Natural History. It contains two microvials, one of which is labelled ' Type specimens' and holds 2 males, one without pleopod I. The other holds 4 females, 2 of which are badly damaged lacking the head. We do not know of the whereabouts of the remaining 2 syntypes. All specimens are in a poor state of preservation, being covered with a 'felt' of fine needlelike crystalline precipitate that cannot be physically removed. In addition to the habitus drawing mentioned (no sex given), Nordenstam (his fig. 65) illustrated the following details: pereopods I and II (female), left antenna (female), right mandible (no sex given), lower lip (no sex given), pleopods I and II (male), operculum (female). We have examined 12 slides in the Swedish Museum of Natural History, all labelled Paramunna dentata n. sp., Type no. 777, Old number 2680, also No. 6123, all from stn 51. All slides are in a poor condition due to drying out, shrinkage and graininess of the medium. Parts are strongly flattened, sometimes distorted, and fine details often cannot be interpreted with certainty. A list of the slides with Nordenstam's annotations in quotation marks (translated from the Swedish) and the results of our scrutiny in square brackets follow. We have numbered the slides from 1 to 12 and inserted the number on the slides. The slides may deteriorate further without professional restoration. 1. ' 1 st pereopod, Ψ', [one pereopod I]. 2. 'Mouthparts and pereopod 1, Ψ', [one pereopod I; one pereopod II; the distal part of one antenna; and both mandibles; all in poor condition]. 3. 'Mouthparts and 1 st pair of pereopods, Ψ', [two ... |
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