Alexandrella
Creators
Description
Key to the species of Alexandrella
(modified from Berge & Vader 2005)
1. Pereonite 7 dorsally with a strong pointed tooth, mandibular incisors smooth........ Alexandrella australis (Chilton, 1912)
– Pereonite 7 dorsally smooth, mandibular incisors fully or partly toothed......................................... 2
2. Gnathopods 1 and 2 subchelate........................................................................... 3
– Gnathopods 1 and 2 simple.............................................................................. 4
3. Maxilla 1 outer plate with 26 setal teeth; gnathopods 1–2 lacking facial setae; pleonites 1–2 dorsally with weak ridge, pleonite 3 with low rounded tooth...................................... Alexandrella subchelata Holman and Watling, 1983
– Maxilla 1 outer plate with 40–45 setal teeth; gnathopods 1–2 densely setose; pleonites 1–3 dorsally with a well developed pointed tooth................................................................... Alexandrella setosa sp. nov.
4. Pleonites 1–3 strongly toothed, female pereopod 1 with oostegite................................................ 5
– Pleonites 1–3 weakly toothed, female pereopod 1 without oostegite.............................................. 6
5. Right mandible with lacinia mobilis reduced to a simple tooth............. Alexandrella mandibulata Berge & Vader, 2005
– Right mandible with lacinia mobilis broad and toothed, but smaller than left one... Alexandrella martae Berge & Vader, 2005
6. Mandibular incisors not toothed along the entire margin, antennae subequal.......... Alexandrella dentata Chevreux, 1912
– Mandibular incisors toothed along the entire margin, antenna 1 shorter than antenna 2......................................................................................... Alexandrella inermis Bellan-Santini & Ledoyer, 1986
Notes
Files
Files
(2.4 kB)
Name | Size | Download all |
---|---|---|
md5:d6dc935c4188467ceadbad05c28c43ed
|
2.4 kB | Download |
System files
(11.8 kB)
Name | Size | Download all |
---|---|---|
md5:799be03bb30f2959c14a317363bbd4f4
|
11.8 kB | Download |
Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.11646/zootaxa.3852.1.6 (DOI)
- Journal article: http://zenodo.org/record/229401 (URL)
- Journal article: http://publication.plazi.org/id/FFB7FFDB5D4DCD29FF8AFFE6133EC610 (URL)
- Journal article: http://zoobank.org/F2D4DB10-3F03-4482-A444-B7493841A0C7 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/038E87A35D4BCD2FFF1DFE3A16A8C5E6 (URL)
Biodiversity
- Family
- Stilipedidae
- Genus
- Alexandrella
- Kingdom
- Animalia
- Order
- Amphipoda
- Phylum
- Arthropoda
- Taxon rank
- genus
References
- Berge, J. & Vader, W. (2005) The amphipod genus Alexandrella (Amphipoda, Stilipedidae): taxonomic status, allometric growth and description of two new species. Journal of Natural History, 39 (17), 1327 - 1346. http: // dx. doi. org / 10.1080 / 00222930400015566
- Chilton, C. (1912) Amphipoda of the Scottish National Antarctic Expedition. Transactions of the Royal Society of Edinburgh, 48, 454 - 519.
- Holman, H. & Watling, L. (1983) A revision of the Stilipedidae (Amphipoda). Crustaceana, 44, 27 - 53. http: // dx. doi. org / 10.1163 / 156854083 x 00037
- Chevreux, E. (1912) Deuxieme Expedition dans l'Antarctique, dirige´e par le Dr. Charcot, 1908 - 1910. Diagnoses d'amphipodes nouxeaux. Bulletin du Museum d'Histoire Naturelle, 18, 208 - 218.
- Bellan-Santini, D. & Ledoyer, M. (1986) Gammariens (Crustacea, Amphipoda) des iles Marion et Prince Edward. Campagne MD 0 8 du MS Marion Dufresne en 1976. Bolletino del Museo Civico di Storia Naturale di Verona, 13, 349 - 435.