Bathyamaryllis Pirlot 1933

• Main Authors: Lowry, J. K., Stoddart, H. E.
• Format: Text
• Language: unknown
• Published: Zenodo 2002
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Amaryllididae; Bathyamaryllis; Pacific; Seta; Lowry; Bonnier; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5239758; https://zenodo.org/record/5239758

Bathyamaryllis Pirlot Bathyamaryllis Pirlot, 1933: 123.–K.H. Barnard, 1940: 441.–J.L. Barnard, 1969: 328.–Barnard & Karaman, 1991: 470. Diagnosis . Head with rostrum anteriorly rounded or truncated; eye reniform or oval. Antenna 1 peduncular article 1 ball-shaped proximally; peduncular article 2 medium length or long; callynophore absent in female, present in male. Antenna 2 flagellum about as long as that of antenna 1 in female, longer than body in male [where known]. Mandible palp article 3 with proximal A3-seta in male [where known], without proximal A3-seta in female. Pereopod 4 coxa with anterior and posterior margins subparallel or with anterior margin slightly obtuse, posterior margin straight. Uropod 3 rami with plumose setae in male [where known], without plumose setae in female; outer ramus 1-articulate or 2-articulate. Type species . Bathyamaryllis perezii Pirlot, 1933, by original designation. Species composition . Bathyamaryllis contains 5 species: B. haswelli (Stebbing, 1888), B. kapala n.sp., B. ouvea Lowry & Stoddart, 1994, B. perezii Pirlot, 1933 and B. pulchellus (Bonnier, 1896). Remarks . Within the vijayiine group Devo and Bathyamaryllis are probably sister taxa. Both have the unusual proximal ballshaped peduncular article 1 on antenna 1. The deepwater genera Bathyamaryllis and Devo are the most widespread amaryllidid genera with species in the Atlantic and the Indo-West Pacific. The Indo-West Pacific species of Bathyamaryllis ( B. kapala, B. ouvea and B. perezii ) all have a moderately constricted inner ramus on uropod 2 and a 2-articulate outer ramus on uropod 3; the two North Atlantic species ( B. haswelli and B. pulchellus ) have only a slightly constricted inner ramus on uropod 2 and a 1-articulate uropod 3. These differences suggest two distinct species groups within the genus. Mature males of Bathyamaryllis species are not well known. Males have never been recorded for B. haswelli or B. perezii . The only male known of our new species B. kapala is immature. Stephensen (1923: 44) reported a male of B. pulchellus in which antenna 2 was “twice as long as antenna 1”, but had no calceoli, and setae were present on article 2 of the mandibular palp. The 7.7 mm male of B. ouvea illustrated in Lowry & Stoddart (1994, fig. 7), is immature. The 8 mm male of their fig. 10 had both antennae 2 broken; antenna 1 and the remaining articles of antenna 2 had no calceoli; it did have a well-developed callynophore on antenna 1, brush setae on the peduncle of antenna 2, numerous setae on articles 2 and 3 of the mandibular palp, a brush of setae on merus and carpus of pereopods 3 and 4, and plumose setae on the rami of uropod 3. Distribution . Western and eastern North Atlantic Ocean, Indonesia, eastern Australia and western South Pacific Ocean; 120–1919 m depth (see Fig. 66). : Published as part of Lowry, J. K. & Stoddart, H. E., 2002, The Amaryllididae of Australia (Crustacea: Amphipoda: Lysianassoidea), pp. 129-214 in Records of the Australian Museum 54 on pages 199-200 : {"references": ["Pirlot, J. M., 1933. Les amphipodes de l'expedition du Siboga. Deuxieme partie: Les amphipodes gammarides, II: - Les amphipodes de la mer profonde. 1 (Lysianassidae, Stegocephalidae, Stenothoidae, Pleustidae, Lepechinellidae). Siboga-Expeditie, Monograph 33 c: 114 - 167.", "Barnard, K. H., 1940. Contributions to the crustacean fauna of South Africa. 12. Further additions to the Tanaidacea, Isopoda, and Amphipoda, together with keys for the identification of the hitherto recorded marine and fresh-water species. Annals of the South African Museum 32: 381 - 543.", "Barnard, J. L., 1969. The families and genera of marine gammaridean Amphipoda. United States National Museum Bulletin 271: 1 - 535.", "Bonnier, J., 1896. Resultats Scientifiques de la Campagne du \" Caudan \" dans la Golfe de Gascogne - Aout - Septembre 1895. Edriophthalmes. Annales de l'Universite de Lyon 26: 527 - 689, pls. 28 - 40.", "Stephensen, K., 1923. Crustacea Malacostraca, V: (Amphipoda, I). Danish Ingolf-Expedition 3 (8): 1 - 100."]}