Leucothoe Leach 1814

• Main Authors: Krapp-Schickel, Traudl, Broyer, Claude De
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Leucothoidae; Leucothoe; Antarctic; Southern Ocean; The Antarctic; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.3861073; https://zenodo.org/record/3861073

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) : Published as part of Krapp-Schickel, Traudl & Broyer, Claude De, 2014, Revision of Leucothoe (Amphipoda, Crustacea) from the Southern Ocean: a cosmopolitanism concept is vanishing, pp. 1-55 in European Journal of Taxonomy 80 on page 4, DOI: 10.5852/ejt.2014.80, http://zenodo.org/record/3860901 : {"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."]}