Etisus odhneri Takeda 1972
Description
Etisus odhneri Takeda, 1972
[New Jn: Minami-hime-hizumegani]
(Fig. 2H)
Material examined. Chichi-jima Is. — Ani-jima I., Hakidashi-hana (27°06′37″N, 142°12′00″E), 5–12 m, 1 ♂ (NSMT-Cr 31514; cb 5.8×cl 4.3 mm), 9-XI-2013, T. Akiyama leg.; Chichi-jima I., Sakai-ura (27°05′06″N, 142°12′19″E), 3–9 m, 1 ♀ (NSMT-Cr 31515; cb 5.8×cl 4.4 nm), 13-XI-2013, T. Akiyama leg.; Chichi-jima I., Omura Beach (27°05′35″N, 142°11′39″E), 3 m, 1 juv. ♂ (NSMT-Cr 31516; cb 4.6×cl 4.0 mm), 30-VI-2014, H. Komatsu leg.; Hitomaru-jima I. (27°07′04″N, 142°11′27″E), 6–8 m, 1 juv. ♂ (cb 5.2×cl 3.9 mm), NSMT-Cr 31517, 29-VI-2014, H. Komatsu leg.
Haha-jima Is. — Haha-jima I., diving site Iwashi-ne (26°39′40″N, 142°08′44″E), 1 juv. (cb 3.7×cl 2.9 mm), NSMT-Cr 31518, 5-VII-2015, T. Akiyama leg.
Remarks. The specimens examined are seemingly very close to Etisus demani Odhner, 1925, and E. odhneri Takeda, 1972, in sharing the carapace flattened areolation and anterolateral triangular dentation, the developed and weakly twolobed front, and the strongly curved fingers with deeply hoofed tips (Odhner, 1925, p. 83; Takeda, 1972a, p. 193, pl. 3). In the specimens examined, however, the carapace anterolateral margin has no supplemental spinules between the main teeth, the ambulatory meri are indistinctly serrated with a series of spinules of ten or so in number, and the G1 possesses no long hairs at the base of the distal beak. These features are characteristic for E. odhneri distinct from E. demani. The G1 is figured by Takeda (1972a, fig. 3E–F), Serène (1984, fig. 3E–F), and Mendoza et al. (2014, fig. 6F), and the color photographs were given by Mendoza et al. (2014, fig. 2E) and Mendoza (2023, fig. 4F).
Distribution. So far known from Babeldaob Island (the Palau Islands) in the Micronesia, Chiristmas Island and the Cocos Keeling Islands in the eastern Indian Ocean, and Mombasa (Kenya) in the western Indian Ocean. The close congener, E. demani, is widely distributed in the Indo-West Pacific including the Ryukyu Islands (cf. Takeda, 1972b).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- T
- Event date
- 2013-11-09 , 2013-11-13 , 2014-06-29 , 2014-06-30 , 2015-07-05
- Family
- Xanthidae
- Genus
- Etisus
- Kingdom
- Animalia
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Takeda
- Species
- odhneri
- Taxon rank
- species
- Verbatim event date
- 2013-11-09 , 2013-11-13 , 2014-06-29 , 2014-06-30 , 2015-07-05
- Taxonomic concept label
- Etisus odhneri Takeda, 1972 sec. Alrasheedi, Alrashdi, Alhumaidan, Alkhdairi, Alzweihary, Alhussaini, Alharbi, Albalawi, Almutairi, Alharbi & Bashal, 2024
References
- Odhner, T. 1925. Monographierte Gattungen der Krabben-Familie Xanthidae. I. Goteborgs Kungliga Vetenskaps-och Vitterhets-Samhalles Handlingar (4) 29 (1): 1 - 92, pls. 1 - 5.
- Takeda, M. 1972 a. (July 1971, imprint). New and rare crabs from the Palau Islands. Micronesica 7: 185 - 213.
- Serene, R. 1984. Crustaces Decapodes Brachyoures de l`Ocean Indien occidental et de la Mer Rouge. Xanthoidea: Xanthidae et Trapeziidae. Addendum Carpiliidae et Menippidae par A. Crosnier. Faune Tropicale 24: 1 - 349, pls. 1 - 48.
- Mendoza, J. C. E., R. M. Lasley Jr. and P. K. L. Ng 2014. New rock crab records (Crustacea: Brachyura: Xanthidae) from Christmas and Cocos (Keeling) Islands, eastern Indian Ocean. Raffles Bulletin of Zoology, Sup- plement 30: 274 - 300.
- Mendoza, J. C. E. 2023. The xanthid crabs (Crustacea: Brachyura: Xanthoidea: Xanthidae) of Madagascar and adjacent southwestern Indian Ocean regions from recent marine biodiversity expeditions, 2009 - 2017. In: Corbari, L., Richer de Forges, B. & Macpherson, E. (eds), Deep-Sea Crustaceans from South-West Indian Ocean. Tropical Deep-Sea Benthos 33: Memoires du Museum national d`Histoire naturelle, Paris 217: 121 - 200.
- Takeda, M. 1972 b. Further notes on the unrecorded xanthid crabs from the Ryukyu Islands. Biological Magazine, Okinawa 9: 15 - 24.