Figorella tanidea J. L. Barnard 1962
Creators
Description
Figorella tanidea J.L. Barnard, 1962
Figorella tanidea J.L. Barnard, 1962: 25, figs 7, 8. ― Lowry & Bullock, 1976: 90. ― Lowry, 1984: 92, figs 31–33. ― Barnard & Karaman, 1991: 487. ― De Broyer & Jazdzewski, 1993: 68. ― Gutt et al., 2000: 80, 83. ― De Broyer et al., 2007: 157.
Diagnostic description. Head lateral cephalic lobe large, narrowly rounded; ventral margin curved. Antenna 1 peduncular article 1 without posterodistal spine; accessory flagellum probably 2-articulate [see Remarks], article 1 short; flagellum without callynophore in specimen of unknown sex. Mandible lacinia mobilis a simple robust seta; lamina dentata absent; accessory setal row present, not on raised setose ridge; molar absent; palp attached slightly distally; palp article 2 broad, as long as article 3; article 3 not distally tapered, with anterior margin convex. Maxilla 1 outer plate with 10 setal-teeth in 4/6 arrangement, setal-teeth smooth; palp well developed, 2-articulate, with apical slender setae. Maxilliped inner plate small; outer plate large; palp 4-articulate, article 4 large. Gnathopod 1 chelate; ischium smaller than propodus, not swollen posteroproximally; carpus extremely compressed; propodus length about 1.9 × breadth, posterior margin well developed, posterodistal corner of palm not attenuated, corner of palm with simple robust seta; dactylus reaching to corner of palm. Gnathopod 2 palm minute, transverse. Pereonite 4 without dorsal spines. Pereonite 5 without dorsal spines. Pereopod 5 merus without posteroproximal shoulder. Pereopod 6 basis with posteroventral lobe weakly produced; merus as broad as long, with posteroproximal shoulder. Pereopod 7 basis subovate with posterior margin weakly dentate. Epimeron 3 posterior margin without projections, posteroventral corner broadly rounded . Uropod 3 biramous, inner ramus extending more than halfway along outer ramus but not reaching base of article 2. Telson [length to breadth not known], entire.
Remarks. Figorella tanidea is the only species of Figorella with what appears to be a 1-articulate accessory flagellum; all other species have a 2-articulate accessory flagellum on antenna 1. However, we cannot be certain that a second article has not been broken off –the one article present is quite broad, as in article 1 of other species. Figorella tanidea is one of three species that have an unusual number of setal-teeth (5 or 6) on the inner row of maxilla 1 outer plate.
Distribution. East Scotia Basin, South Atlantic Ocean and Weddell Sea; 446–3770 m depth.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.11646/zootaxa.3246.1.1 (DOI)
- Journal article: http://zenodo.org/record/5249007 (URL)
- Journal article: http://publication.plazi.org/id/B959FFAB3625FF89B848092DFF814D73 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/456087D33638FF97B8DF0C5AFB564CBC (URL)
Biodiversity
- Family
- Pakynidae
- Genus
- Figorella
- Kingdom
- Animalia
- Order
- Amphipoda
- Phylum
- Arthropoda
- Scientific name authorship
- J. L. Barnard
- Species
- tanidea
- Taxon rank
- species
- Taxonomic concept label
- Figorella tanidea Barnard, 1962 sec. Lowry & Stoddart, 2012
References
- Barnard, J. L. (1962) South Atlantic abyssal amphipods collected by R. V. Vema. Abyssal Crustacea. Vema Research Series, 1, 1 - 78.
- Lowry, J. K. & Bullock, S. (1976) Catalogue of the marine gammaridean Amphipoda of the Southern Ocean. Bulletin of the Royal Society of New Zealand, 16, 1 - 187.
- Lowry, J. K. (1984) Systematics of the pachynid group of lysianassoid Amphipoda (Crustacea). Records of the Australian Museum, 36 (2), 51 - 105.
- Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13 (2), 419 - 866.
- De Broyer, C. & Jazdzewski, K. (1993) Contribution to the marine biodiversity inventory. A checklist of the Amphipoda (Crustacea) of the Southern Ocean. Documents de Travail de l'Institut Royal des Sciences Naturelles de Belgique, 73, 1 - 154.
- Gutt, J., Sirenko, B. I., Arntz, W. E., Smirnov, I. S. & De Broyer, C. (eds) (2000) Biodiversity of the Weddell Sea: macrozoobenthic species (demersal fish included) sampled during the expedition ANT XIII / 3 (EASIZ I) with RV " Polarstern ". Berichte zur Polarforschung, 372, 1 - 103.
- De Broyer, C., Lowry, J. K., Jazdzewski, K. & Robert, H. (2007) Catalogue of the Gammaridean and Corophiidean Amphipoda (Crustacea) of the Southern Ocean with distribution and ecological data. In: C. De Broyer (ed.) Census of Antarctic Marine Life: Synopsis of the Amphipoda of the Southern Ocean. Volume 1. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie, 77, Supplement 1 (1), 1 - 325.