Talitrus Latreille 1802
Creators
Description
Talitrus Latreille, 1802
Talitrus Latreille, 1802: 148. — Stebbing, 1888: 1682.—G. O. Sars, 1890: 22.— Stebbing, 1891: 324.— Della Valle, 1893: 492.— Stebbing, 1906: 524.— Chevreux & Fage, 1925: 270.— Hurley, 1955: 145 (in part).— Bulycheva, 1957: 127 (in part).—J.L. Barnard, 1969: 472 (in part).— Lincoln, 1979: 226.— Bousfield, 1982: 45.
Thalitrus (sic).— Guérin-Méneville, 1836: 3.
Talitrus (Talitrorchestia) Brandt, 1851: 135 (type species Talitrus cloquetii).
Talitrus (Talitrus).— Hurley, 1975: 161 (in part).
Type species. Cancer (Gammarus) saltator Montagu, 1808, selected by Latreille, 1810.
Included species. Talitrus includes 3 species: T. cloquetii Audouin, 1826; T. platycheles Guérin, 1832; T. saltator (Montagu, 1808).
Habitat. Supralittoral, intertidal substrate-modifying talitrids of sandy beaches.
Ecotype. Sand-hopper.
Diagnostic description (male). Head. Eye medium (1/5–1/3 head length), or large (greater than 1/3 head length). Antenna 1 short , not reaching midpoint of peduncular article 5 of antenna 2. Antenna 2 peduncular articles incrassate (expanded) ; article 3 without plate or process ventrally. Labrum epistome without robust setae; median groove without robust setae. Mandible left lacinia mobilis 5-, 3- or 2-cuspidate. Maxilliped palp broad or slender, article 2 with or without distomedial lobe; article 4 fused with article 3.
Pereon. Pereonites without transverse ridges. Gnathopod 1 not sexually dimorphic; simple; posterior margin of merus, carpus and propodus each without lobe covered in palmate setae; propodus tapering distally. Gnathopod 2 mitten-shaped ; posterior margin of propodus with lobe covered in palmate setae; propodus palm obtuse; dactylus short, distally acute, shorter than posterior margin of propodus. Pereopods 3–7 bicuspidactylate. Pereopod 4 dactylus thickened proximally with notch midway along posterior margin. Pereopod 5 short, less than 2/3 length of pereopod 6; dactylus long, slender, not inflated. Pereopod 6 not sexually dimorphic; subequal in length or longer than pereopod 7. Pereopods 6–7 without row of short setae along posterior margin of dactyli. Pereopod 7 not sexually dimorphic propodus broad, length 4.8–5.8 × width.
Pleon. Pleonites 1–3 without dorsal spines. Oostegites setae with simple smooth tips. Pleopods 1–3 all welldeveloped. Uropod 1 male exopod not sexually dimorphic, peduncle distolateral robust seta absent; endopod with marginal robust setae in 1 or 2 rows; exopod with marginal robust setae in 1 or 2 rows. Uropod 2 exopod with marginal robust setae in 1 or 2 rows; endopod with marginal robust setae in 1 or 2 rows. Uropod 3 ramus subequal in length to peduncle. Telson broader than long, tapering distally or rounded distally, apically incised or entire, without groove, with marginal and apical robust setae, with 8–10 robust setae per lobe.
Remarks. Talitrus is the only member of the Talitridae with the combination of no sexual dimorphism in gnathopod 2 coupled with an incrassate antenna 2. It is also the only talitrid with the combination of an incrassate second antenna combined with no palmate lobes on gnathopod 1. Talitrus is the only European/Mediterranean talitrid genus with a non-enlarged male gnathopod 2 (apart from the cavernicolous Palmorchestia Stock & Martin, 1988).
Distribution. Eastern North Atlantic Ocean and Mediterranean Sea.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Talitridae
- Genus
- Talitrus
- Kingdom
- Animalia
- Order
- Amphipoda
- Phylum
- Arthropoda
- Scientific name authorship
- Latreille
- Taxon rank
- genus
- Taxonomic concept label
- Talitrus Latreille, 1802 sec. Lowry & Myers, 2019
References
- Latreille, P. A. (1802) In L. A. G. Bosc, Histoire naturelle des Crustaces, contenant leur description et leurs maeurs, vol. 2, 295 pp, pls 9 - 18, Paris, Deterville. https: // doi. org / 10.5962 / bhl. title. 15764
- Stebbing, T. R. R. (1888) Report on the Amphipoda collected by H. M. S. Challenger during the years 1873 - 1876. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the years 1873 - 76, Zoology, 29, 1 - 1737, pls. 1 - 210.
- Sars, G. O. (1890) An account of the Crustacea of Norway, with short descriptions and figures of all the species. Vol. I. Amphipoda. Part I Hyperiidae; Part 2 Orchestiidae and Lysianassidae (part); Part 3 Lysianassidae (continued).
- Stebbing, T. R. R. (1891) Sessile-eyed crustaceans. Annals and Magazine of Natural History, Series 6, 8, 324 - 331. https: // doi. org / 10.1080 / 00222939109460446
- Della Valle, A. (1893) Gammarini del Golfo di Napoli. Fauna und Flora des Golfes von Neape l, 20, 1 - 948., pls. 941 - 961.
- Stebbing, T. R. R. (1906) Amphipoda I. Gammaridea. Das Tierreich, 21, 1 - 806, figs. 1 - 127.
- Chevreux, E. & Fage, L. (1925) Amphipodes. Faune de France, 9, 1 - 488.
- Hurley, D. E. (1955) Studies on the New Zealand amphipodan fauna No. 8. Terrestrial amphipods of the genus Talitrus Latr. Pacific Science, 9, 144 - 157.
- Bulycheva, A. I. (1957) [Beach-fleas of the seas of the USSR and adjacent waters (Amphipoda - Talitroidea)]. Akademiya Nauk SSSR, Opredeliteli po Faune SSSR, 65, 1 185.
- Barnard, J. L. (1969) The families and genera of marine gammaridean Amphipoda. Bulletin of the United States National Museum, 271, 1 - 535.
- Lincoln, R. J. (1979) British Marine Amphipoda: Gammarid ea. (37). London, British Museum (Natural History), 658 pp.
- Bousfield, E. L. (1982) The amphipod superfamily Talitroidea in the northeastern Pacific region. 1. Family Talitridae: systematics and distributional ecology. National Museum of Natural Sciences (Ottawa), Publications in Biological Oceanography, 11, 1 - 73.
- Guerin-Meneville, F. E. (1836) Expedition scientifique de Moree. Atlas. Paris: 3.
- Brandt, J. F. (1851) Beitrage zur Kenntniss der Amphipoden (Crustacea Amphipoda). Erster Artikel. Bemerkungen uber die Gattung Talitrus und ihr Verhaltniss zu Orchestia. Zweiter ArtikeI. Ueber die Gattung Orchestia. Bulletin de la Class Physico- Mathematique de l'Academie Imperiale des Sciences de Saint-Petersbourg, 9, 133 - 144.
- Hurley, D. E. (1975) A possible subdivision of the terrestrial genus Talitrus (Crustacea: Amphipoda: Family Talitridae. New Zealand Oceanographic Institute Records, 12 (14), 157 - 170.
- Montagu, G. (1808) Description of several marine animals found on the south coast of Devonshire. Transactions of the Linnean Society, London, 9, 81 - 114. https: // doi. org / 10.1111 / j. 1096 - 3642.1818. tb 00327. x
- Latreille, P. A. (1810) Considerations generales sur l'ordre naturel des animaux composant les classes des crustaces, des arachnides, et des insectes; avec un tableau methodique de leurs genres, disposes en families, Paris: F. Schoell. https: // doi. org / 10.5962 / bhl. title. 39620
- Audouin, V. (1826) Explication sommaire des planches de Crustaces de l'Egypte et de la Syrie, publiees par Jules-Cesar Savi- gny, Membre de l'Institut; offrant un expose des caracteres naturels des genres, avec la distinction des especes. In: Description de l'Egypte, ou recueil des observations et des recherches qui ont ete faites en Egypte pendant l'expedition de l'armee francaise, publiee par les ordres de Sa Majeste l'Empereur Napoleon le Grand. Histoire naturelle. Imprimerie imperiale, Paris. Animaux invertebr, 1 (4), 77 - 98.
- Guerin, F. E. (1832) Amphipodes. Expedition scientifique de Moree. Section des sciences physiques, 3 (1) - Zoologie, 1, 44 - 46. [Paris, Levrault]
- Stock, J. H. & Martin, J. M. (1988) A new cave hopper (Amphipoda: Talitridae) from lava tubes in La Palma, Canary Islands. Journal of Natural History, 22, 1121 - 1133. https: // doi. org / 10.1080 / 00222938800770701