Eudorella emarginata Kroyer 1846
Eudorella emarginata (Kröyer, 1846) (Figs. 18, 19) Leucon emarginattus Kröyer, 1846: 181, 209, 211, pl. 2, fig. 3 a–h. Eudorella emarginata Sars, 1900: 36, pls. 27–28; Stebbing 1913, 75– 77, Figs. 40–42; Jones 1976, 28, Fig 9 E–H; Akiyama 2009: 486. Material examined. 5 ovigerous females, 9.1–11.1 m...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://zenodo.org/record/6178464 https://doi.org/10.5281/zenodo.6178464 |
| Summary: | Eudorella emarginata (Kröyer, 1846) (Figs. 18, 19) Leucon emarginattus Kröyer, 1846: 181, 209, 211, pl. 2, fig. 3 a–h. Eudorella emarginata Sars, 1900: 36, pls. 27–28; Stebbing 1913, 75– 77, Figs. 40–42; Jones 1976, 28, Fig 9 E–H; Akiyama 2009: 486. Material examined. 5 ovigerous females, 9.1–11.1 mm, 1 adult male, 9.7 mm, 3 subadult males, 9.0 mm, 8.8 mm (NSMT-Cr 22127), off Kushiro, Hokkaido, 42 ° 28 ˏN, 144 ° 15 ˏE – 42 ° 27 ˏN, 144 ° 13 ˏE, 965–982 m (KH-01- 2, St. XR- 2), 15 September 2001; 1 ovigerous female, badly damaged, 2 preparatory females, 12.1 mm, 11.4 mm, 1 subadult male, 9.3 mm (NSMT-Cr 22128), 42 ° 10 ˏN, 144 ° 10 ˏE – 42 ° 11 ˏN, 144 ° 12 ˏE, 1134–1219 m (KH-01- 2, St. KC0), 18 September, 2001 (NSMT-Cr 22129). 6 ovigerous females, 9.8–12.1 mm, 5 preparatory females, 10.6 – 13.0 mm, 1 adult male (pleonite 6 and uropods lost), 3 subadult males, length 9.2 mm, 8.6 mm (NSMT-Cr 22130), off Todogasaki, northeast of Honshu, 39 ° 31 ˏN, 142 ° 32 ˏE – 39 ° 32 ˏN, 142 ° 34 ˏE, 1002–1069 m (KH-01- 2, St. TD- 2), 25 September, 2001. 3 ovigerous females, 8.7–9.4mm, 3 adult males, length 8.9–9.5 mm (NSMT-Cr 22131), off Abashiri, Okhotsk Sea, 44 °06ˏN, 144 ° 42 ˏE – 44 °06ˏN, 144 ° 43 ˏE, 313–335 m (KT-04- 20, St. AB- 3), 12 September, 2004. Description. 13 ovigerous and 7 preparatory females, 8.6 –13.0 mm (Fig. 18). Carapace length 0.18–0.20 times total body length, 1.1–1.2 times greatest width, latter being 1.1–1.2 times depth; frontal margin not serrated, except for a few specimens having very weakly serrated frontal margin; antennal notch and lower region forming large, somewhat triangular sinus; anterolateral angle with prominent tooth directed forward, succeeded by a series of teeth on inferior margin; pereon 1.2–1.5 times carapace. Pleon 0.53–0.60 times total animal length. Dorso-posterior end of pleonite 5 with 0 or 2 thin long setae. Antenna 1 (Fig. 18 C) 1 st article of peduncle with 2–6 and 2–4 plumose setae on lower and inner margins respectively; 3 rd article of peduncle subequal or shorter than ... |
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