Paraxanthias parvus
Description
Paraxanthias parvus (Borradaile, 1900)
[New Jn: Kogata-hime-ougigani]
(Fig. 4A)
Material examined. Chichi-jima Is.—Nishijima I., 8♂♂ (cb 5.3×cl 3.7 mm —cb 6.6×cl 4.6 mm), 6 ♀♀ (cb 6.3×cl 4.4 mm —cb 9.4×cl 6.0 mm), 1 ovig.♀ (cb 5.1×cl 3.6 mm), NSMT-Cr 31537, 1 ovig.♀(NSMT-Cr 31538; cb 8.5×cl 5.6 mm), 29-VI-1976, M. Takeda leg.
Remarks. This rare small species has been recorded only by Borradaile (1900, pl. 41 fig. 5, as Xanthias), Takeda and Miyake (1969, fig. 1), Paulay et al. (2003, in list), and Maenosono (2021, figs. 1F, 2D, H). This species originally referred to the genus Xanthias Rathbun, 1897, was designated as one of five congeneric species in the new genus Paraxanthias established by Odhner (1925). Rathbun (1930) referred them to the genus Paraliomera Rathbun, 1930, but Guinot (1964) doubted their inclusion to the American genus Paraliomera, and Takeda and Miyake (1969) followed Odhner (1925).
The specimens examined is of stout appearance in spite of its small size, with the strong chelipeds of remarkably different size; four anterolateral teeth of the carapace are rather angulated, especially the first is obtusely angulated at the middle.
Distribution. This species, one of nine Indo-West Pacific species, is known only from Fiji (Rotuma Island), the northern Mariana Islands, and Japan (Ryukyu Islands and Kagoshima Prefecture).
Notes
Files
Files
(1.8 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:b9b7b9bd853893f2c9d8082883ec063d
|
1.8 kB | Download |
System files
(14.6 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:51986bac95288b2fb81544379795940d
|
14.6 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Family
- Xanthidae
- Genus
- Paraxanthias
- Kingdom
- Animalia
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Borradaile
- Species
- parvus
- Taxon rank
- species
- Taxonomic concept label
- Paraxanthias parvus (Borradaile, 1900) sec. Alrasheedi, Alrashdi, Alhumaidan, Alkhdairi, Alzweihary, Alhussaini, Alharbi, Albalawi, Almutairi, Alharbi & Bashal, 2024
References
- Borradaile, L. A. 1900. On some crustaceans from the South Pacific. Part IV. The crabs. Proceedings of the General Meetings for Scientific Business of the Zoo- logical Society of London 1900: 568 - 596, pls. 40 - 47.
- Takeda, M. and S. Miyake 1969. On two species of the family Xanthidae (Crustacea, Brachyura) from southern Japan. Ohmu 2: 195 - 206.
- Paulay, G., R. Kropp, P. K. L. Ng and L. G. Eldredge 2003. The crustaceans and pycnogonids of the Mariana Islands. In: G. Paulay (ed.), The Marine Biodiversity of Guam and the Marianas. Micronesica 35 - 36: 456 - 513.
- Maenosono, T. 2021. Four species of Paraxanthias (Brachyura: Xanthidae) from Kagoshima and Okinawa prefectures, southwestern Japan. Nature of Kagoshima 48: 127 - 123 (In Japanese with English Abstract).
- 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.
- Rathbun, M. J. 1930. The cancroid crabs of America of the families Euryalidae, Portunidae, Atelecyclidae, Cancridae and Xanthidae. United States National Museum, Bulletin 152: xvi + 609 pp.
- Guinot, D. 1964. Crustaces Decapodes Brachyoures (Xanthidae) des campagnes de la Calypso en Mer Rouge (1952), dans le Golfe Persique et a l`ile Aldabra (1954). Memoires du Museum national d`Histoire naturelle, Paris (A) 32: 1 - 108, pls. 1 - 12.