Leucothoe Leach 1814
- 1. Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 160, D- 53113 Bonn, Germany E-mail: traudl. krapp @ uni-bonn. de (corresponding author) & urn: lsid: zoobank. org: author: E 1 B 1 DCCF- 04 CB- 4 B 1 A-A 69 B-A 7 C 25 EC 95 A 38
- 2. Royal Belgian Institute of Natural Sciences, rue Vautier 29, B- 1000 Bruxelles, Belgium E-mail: claude. debroyer @ naturalsciences. be & urn: lsid: zoobank. org: author: 970067 BF-A 792 - 48 A 9 - B 32 A-B 91 F 0 E 41 C 354
Description
Key for Antarctic and sub-Antarctic Leucothoe -species:
1. Cx 2 and Cx 4 anterodistally with acute angle [eyes yellowish]................................................................................................................................... L. merletta sp. nov. (2.5 mm, depth range unknown)
– Coxae anterodistally never acutely pointed....................................................................................... 2
2. P 5-7 basis ratio l:w clearly> 2, proximally widest......................................................................................................................................................... L. longimembris sp. nov. (15 mm, depth: 1030 m)
– Basis P 5-7 ratio l:w <2, medially widest......................................................................................... 3
3. Gn 1 propodus and carpus distally very narrow and elongate, propodus ratio l:w> 5, dactylus ≤ 1/3 of propodus length; Gn 2 propodus with palmar corner; peraeopod dactyli> 1/2 length of propodus; Ep 2 posterodistally acutely lengthened [eyes small, compact and dark red]..................................... L. orkneyi Holman & Watling, 1983 (4-9 mm, depth-range 11-1584 m)
– Gn 1 propodus ratio l:w ≤ 5, dactylus ≥ 1/3 of propodus-length, Gn 2 propodus without palmar corner; peraeopod dactyli ≤ 1/2 length of propodus.......................................................................... 4
4. Gn 1 propodus robust, ratio l:w = 3.0-3.5. [Cx 3 narrow with nearly parallel margins; P 5-7 basis ovoid, hind margin in P 7 scarcely serrate, Ep 3 posterodistal corner minutely lengthened, posterior margin excavate]........................................ L. macquariae sp. nov. (6-10 mm, depth-range 5-111 m)
– Gn 1 propodus ratio l:w more than 3.5.............................................................................................. 5
5. Gn 2 dactylus very long, reaching up to about 2/3 of propodus length; Gn 1 propodus ratio l:w = 5; Ep 3 posterodistal corner rectangular............. L. campbelli sp. nov. (5-7 mm, depth-range 10-25 m)
– Gn 2 dactylus about half length of propodus or little more............................................................... 6
6. P 7 basis regularly rounded, ratio length to width about 1.3. Eyes large, ommatidia separated................... L antarctica Pfeffer, 1888 (4-9 mm, depth-range 24-335 m, doubtful material from 1584 m)
– P 7 basis ratio length to width about 1.7. Eyes large, ommatidia fused.............................................................................................................. L. weddellensis sp. nov. (10-24 mm, depth range 9-602 m)
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Leucothoidae
- Genus
- Leucothoe
- Kingdom
- Animalia
- Order
- Amphipoda
- Phylum
- Arthropoda
- Scientific name authorship
- Leach
- Taxon rank
- genus
- Taxonomic concept label
- Leucothoe Leach, 1814 sec. Krapp-Schickel & Broyer, 2014
References
- Holman H. & Watling L. 1983. Amphipoda from the Southern Ocean: families Colomastigidae, Dexaminidae, Leucothoidae, Liljeborgiidae, and Sebidae. Biology of the Antarctic Seas. 13. Antarctic Research Series 38 (4): 215 - 262.
- Pfeffer G. 1888. Die Krebse von Sudgeorgien nach der Ausbeute der Deutschen Station 1882 - 83. 2. Teil. Die Amphipoden. Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten 5: 75 - 142.