Metandania islandica : Stephensen 1925

• Main Author: Berge, JØrgen
• Format: Other/Unknown Material
• Language: unknown
• Published: 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Stegocephalidae; Metandania; Metandania islandica; North Atlantic
• Online Access: https://zenodo.org/record/5279002; https://doi.org/10.5281/zenodo.5279002

Metandania islandica Stephensen, 1925 (®gures 25±27) Metandania islandica Stephensen, 1925: 136. Metandania islandica: Schellenberg, 1953: 187. Andaniotes islandica: Barnard and Karaman, 1991: 678 (A. islandica synonymized with A. corpulentus). Material examined HOLOTYPE: Zoological Museum, Copenhagen: immature 7 mm, 65 ss 14 ¾ N, 30 ss 39 ¾ W, 1318 m. Additional material: Naturhistorisk a Museet, Gotenborg, Sweden: Female 22 mm (Schellenberg, 1953: 187), 19 ss 49 ¾ N, 65 ss 01 ¾ W, 7900± 7625 m. Distribution Known only from two localities in the north Atlantic, 1318±7900 m. Description The following description and ®gures are all from Schellenberg’s female, 22 mm. Rostrum very small. Antennae elongate. Antenna 1 shorter than antenna 2; ¯agellum four-articulate; accessory ¯agellum article 2 absent. Antenna 2 peduncle (articles 3±5) shorter than ¯agellum; article 3 short, about as long as broad; article 4 shorter than article 5. Epistome curved (convex) and smooth; epistomal plate (medial keel) produced into a large conspicuous medial keel. Mouthparts not elongate or pointed. Mandible incisor transverse; smooth and toothed; left lacinia mobilis present; powerful; laterally straight; not conical. Maxilla 1 palp uni-articulate, oval, setae short, robust, cuspidate, apex reaching above the apex of outer plate; outer plate distally rounded; ST in two parallel rows, ®rst marginal and second submarginal, ST ®rst row with six setae (ST1±5, ST7), ST 1 ordinary (similar to ST 2±4), gap between ST 5 and ST 7, ST A±C present, part of second row; inner plate without a well developed shoulder, setae pappopectinate. Maxilla 2 ordinary; outer plate setae without distal hooks or cleft; inner plate setae row A covering the entire margin, appressed to row B, row A setae pappose, ®rst three or four setae diOEerentiated from the other setae (weakly pappopectinate); row B setae proximally pappose, distally with cusps; row C present; row D absent. Maxilliped palp four-articulate; article 2 distally unproduced; dactylus distally simple ...