Waldeckiinae

• Main Authors: Lowry, J. K., Kilgallen, N. M.
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Lysianassidae; Antarctic; Charcot; Lowry; Chevreux; Antarc*; Antarctique*
• Online Access: https://dx.doi.org/10.5281/zenodo.5316399; https://zenodo.org/record/5316399

Waldeckiinae subfam. nov. Type genus. Waldeckia Chevreux, 1906. Generic composition. Monogeneric. Diagnosis. Antenna 1 with well developed callynophore in both sexes. Antenna 2 of adult male longer than the body, peduncular articles 4 and 5 enlarged; antenna 2 of female subequal in length to or slightly longer than antenna 1, without peduncular brush setae, geniculate between peduncular articles 3 and 4. Mandibular molar a setose tongue with a vestigial distal triturating patch; palp attached proximally or extremely proximally. Maxilla 1 with 8 / 3 setal-tooth arrangement with broad setal-teeth and ST- 7 slightly displaced from ST- 6. Maxilla 2 without oblique setal row. Gnathopod 1 usually parachelate, occasionally subchelate. Pereopod 4 coxa with very large posteroventral lobe. Uropod 3 rami with plumose setae in both sexes, outer ramus 2 -articulate. Telson deeply cleft. Remarks. Waldeckia is an enigmatic genus in the Lysianassidae with affinities to the subfamily Tryphosinae, and to a lesser extent the family Uristidae. The well-developed callynophore of antenna 1 in both sexes is comparable to the tryphosines, as is the antenna 2 with brush setae. The 8 / 3 setal-tooth arrangement of maxilla 1 is similar to that of the tryphosines in that it has a broad ST- 6, ST- 7 with ST- 7 slightly displaced from ST- 6, but ST-B – ST-D have moved down the medial face similar to uristids, eurytheneids and some hirondelleids (most obvious in W . australiensis and W . nitens ). The mandibular molar is more similar to the setose tongue of uristids, hirondelleids and eurytheneids with a vestigial distal triturating patch. It is, however, unlike the columnar and strongly triturating molar of the tryphosines. Almost uniquely among the lysianassids, gnathopod 1 is always parachelate (except in W . warreen sp. nov. in which it is subchelate), a character only shared with Falklandia reducta (Schellenberg, 1931) in the Tryphosinae. Uropod 3 has plumose setae and the telson is deeply cleft, characteristic of both tryphosines and uristids. Waldeckia shares no characters with lysianassine amphipods. : Published as part of Lowry, J. K. & Kilgallen, N. M., 2014, A revision of the lysianassid genus Waldeckia with the description of four new species (Crustacea, Amphipoda, Lysianassidae, Waldeckiinae subfam. nov.), pp. 301-345 in Zootaxa 3784 (4) on page 303, DOI: 10.11646/zootaxa.3784.4.1, http://zenodo.org/record/227027 : {"references": ["Chevreux, E. (1906) Crustaces amphipodes. Expedition Antarctique Francaise (1903 - 1905) commandee par le Dr Jean Charcot. Sciences Naturelles: Documents Scientifiques, 1 - 100. http: // dx. doi. org / 10.5962 / bhl. title. 12942", "Schellenberg, A. (1931) Gammariden und Caprelliden des Magellangebietes, Sudgeorgiens und der Westantarktis. Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903, 2, 1 - 290, pl. 291."]}