Pseudorchestoideinae
Creators
- 1. School of Biological, Earth and Environmental Sciences, University College Cork, Cork Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland.
- 2. Australian Museum Research Institute, 1 William Street, Sydney, NSW 2010, Australia.
Description
Pseudorchestoideinae subfam. nov.
Type genus. Pseudorchestoidea Bousfield, 1982.
Included genera (6). Americorchestia Bousfield, 1991; Asiaorchestia Lowry & Myers, 2019a; Britorchestia Lowry & Bopiah, 2012; Persianorchestia Momtazi, Lowry & Hekmatara, 2017; Pseudorchestoidea Bousfield, 1982; Sardorchestia Ruffo in Tafani et al., 2004.
Category. Mascupods.
Ecological type. Sand-hoppers.
Distribution. Persian Gulf; Pacific South and Central America; Indonesia and Malaysia; East Atlantic and Mediterranean; Western North Atlantic.
Diagnostic description. Antenna 1 short, not reaching midpoint of peduncular article 5 of antenna 2. Maxilliped palp article 2 with distomedial lobe; article 4 reduced, button-shaped or fused to article 3 . Gnathopod 1 posterior margin of carpus and propodus each with lobe covered in palmate setae; propodus subrectangular. Gnathopod 2 subchelate. Pereopods 3–7 cuspidactylate. Pereopod 4 dactylus amplidactylate. Pereopod 5 dactylus not inflated or inflated. Pereopod 6 subequal in length to pereopod 7. Pereopod 7 not sexually dimorphic. Epimera 1–3 slits absent. Uropods 1–2 rami with apical spear-shaped setae . Uropod 1 male exopod not sexually dimorphic; exopod with marginal robust setae in one row or with marginal robust setae in two rows or without marginal robust setae. Uropod 3 ramus subequal in length, longer than or shorter than peduncle. Telson with apical and marginal robust setae, with 3 to at least 10 robust setae per lobe.
Remarks. Pseudorchestoideini is defined by the unusual spear-shaped apical setae on the rami of uropods 1 and 2. The group follows the ancient southern Laurasian coastline from tropical America through the Mediterranean Sea, the Persian Gulf to Vietnam.
Notes
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Linked records
Additional details
Identifiers
References
- Bousfield, E. L. (1982) The amphipod superfamily Talitroidea in the northeastern Pacific region. Family Talitridae. Systematics and distributional ecology. National. Museum of Natural Science, Publications in Biological Oceanography, 11, i-vii + 1 - 73.
- Bousfield, E. L. (1991) New sand-hoppers (Crustacea: Amphipoda) from the Gulf coast of the United States. Gulf Research Reports, 8 (3), 271 - 283. https: // doi. org / 10.18785 / grr. 0803.07
- Lowry, J. K. & Myers, A. A. (2019 a) New genera of Talitridae in the revised Superfamily Talitroidea Bulycheva, 1957 (Crustacea, Amphipoda, Senticaudata). Zootaxa, 4553 (1), 1 - 100. https: // doi. org / 10.11646 / zootaxa. 4553.1.1
- Lowry, J. K. & Bopiah, A. (2012) Britorchestia, a new talitrid genus from western Europe and the Mediterranean Sea and a revision of Pseudorchestoidea and Sardorchestia (Crustacea, Amphipoda, Talitridae). Zootaxa, 3451 (1), 60 - 67. https: // doi. org / 10.11646 / zootaxa. 3451.1.5
- Momtazi, F., Lowry, J. K. & Hekmatara, M. (2017) Persianorchestia, a new talitrid genus (Crustacea: Amphipoda: Talitridae) from Gulf of Oman, Iran. Zootaxa, 4238 (1), 119 - 126. https: // doi. org / 10.11646 / zootaxa. 4238.1.9
- Tafani, B., Ugolini, A., Bazzicalupo, M., Mengoni, A. & Ruffo, S. (2004) Phylogenetic relationships among Mediterranean sandhoppers. Journal of Natural History, 38, 499 - 508. https: // doi. org / 10.1080 / 0022293021000045145