Mimonecteola antarctica Zeidler, 2012, sp. nov.
Mimonecteola antarctica sp. nov. (Figs 1 & 2) Material examined. Holotype. Female 8.0 mm (USNM 1090275); Southern Ocean, Pacific Sector, Amundsen Sea [62 ° 11 ’– 62 ° 20 ’S 115 °02’– 114 ° 24 ’W], R/V Eltanin, stn. 901, cruise 11, University of Southern California, 3477– 3678 m, 7 January 1964....
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2012
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| Online Access: | https://zenodo.org/record/6177661 https://doi.org/10.5281/zenodo.6177661 |
| Summary: | Mimonecteola antarctica sp. nov. (Figs 1 & 2) Material examined. Holotype. Female 8.0 mm (USNM 1090275); Southern Ocean, Pacific Sector, Amundsen Sea [62 ° 11 ’– 62 ° 20 ’S 115 °02’– 114 ° 24 ’W], R/V Eltanin, stn. 901, cruise 11, University of Southern California, 3477– 3678 m, 7 January 1964. Allotype. Male (?) 7.2 mm (USNM 1090274); Southern Ocean, Atlantic Sector, north-west of Elephant Island [60 ° 12 ’– 60 ° 21 ’S 59 °00’– 59 ° 14 ’W], R/V Eltanin, stn. 449, cruise 6, University of Southern California, 1610 m, 15 January 1963. Description of holotype (figs 1 & 2). Female, 8.0 mm; immature judging by the under-developed oostegites. Pereon moderately inflated due to enlargement of pereonites 1–4. Head with short, hook-shaped rostrum. Eyes small or barely discernable. Antennae 1 as long as head and first 1.5 pereonites combined (measured medially). Antennae 2 similar in length to antennae 1, with relatively long, slender terminal article. Gnathopod 1; basis marginally shorter than remaining articles combined; carpus and propodus similar in length; propodus oval-shaped with numerous fine setae distally; dactyl relatively straight, length about half propodus. Gnathopod 2; length 1.4 x gnathopod 1; articles relatively more slender but of similar proportions to those of gnathopod 1; propodus with few long setae on margins and distally. Pereopod 3 marginally longer than pereopod 4; basis length almost 2.5 x merus; carpus slightly expanded with several moderate setae on distal margin, length about twice merus; propodus relatively narrow, length 1.4 x carpus; dactyl relatively straight, length slightly more than 0.2 x propodus. Pereopod 4 marginally shorter than pereopod 3 but of similar structure; basis length about twice merus, as long as carpus; propodus length about 1.3 x carpus. Pereopod 5 is relatively feeble compared to other pereopoda, with more slen- der articles except for the propodus; length marginally more than 0.7 x pereopod 4; basis length about twice merus; carpus length about 1.3 x merus; ... |
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