Mimonectes Bovallius 1885

• Main Author: Zeidler, Wolfgang
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Mimonectidae; Mimonectes; Bering Sea; Pacific
• Online Access: https://dx.doi.org/10.5281/zenodo.5257955; https://zenodo.org/record/5257955

Key to the species of the genus Mimonectes 1. Gnathopods 1 & 2; propodus with distinct projection above and below, or just below, insertion of dactyl................. 2 - Gnathopods 1 & 2; propodus without distal projections, or projections minute...................................... 4 2. Gnathopods 1 & 2; propodus without antero-distal projection but with distinct postero-distal projection below insertion of dactyl................................................................................. M. alexanderi sp. nov. - Gnathopods 1 & 2; propodus with distinct antero-distal projection above insertion of dactyl and shorter postero-distal projection below dactyl...................................................................................... 3 3. Gnathopods 1 & 2; propodus relatively narrow, width about 0.3x length (or less). Pereopod 3 slightly shorter than P4. Pereopods 5–7 with propodus slightly shorter than carpus.................................... M. gaussi (Woltereck, 1904) - Gnathopods 1 & 2; propodus relatively broad, width about 0.4x length. Pereopod 3 slightly longer than, or sub-equal in length to, P4. Pereopods 5–7 with propodus slightly longer than carpus (especially P7 of males).... M. diomedeae (Woltereck, 1909) 4. Pereopods 3–7 with relatively broad articles; merus relatively short, only slightly longer than ischium......................................................................................... M. spandlii Stephensen & Pirlot, 1931 - Pereopods 3–7 with relatively slender articles; merus length more than twice ischium................................ 5 5. Gnathopod 1; propodus with very small distal projection on either side of dactyl. Gnathopod 2 simple, relatively slender......................................................................... M. stephenseni (Pirlot, 1929) comb. nov. - Gnathopod 1; propodus without distal projections. Gnathopod 2 simple, or marginally to strongly sub-chelate, with relatively broad, rarely slender articles............................................................................. 6 6. Gnathopods 1 & 2; margins of propodus evenly convex, with numerous fine setae; dactyl relatively weak, short, length less than 0.3x propodus................................................................ M. loveni Bovallius, 1885 - Gnathopods 1 & 2; margins of propodus not especially convex; posterior margin without, or with slight, or distinct postero-distal excavation, with groups of strong setae; dactyl relatively strong, longer than 0.3x propodus........................ 7 7. Pereopod 3 distinctly longer than P4–6. Males with thick, opaque cuticle; pereonites with furrows, decreasing in prominence from pereonites 1–7.................................................................................... 8 - Pereopod 3 similar in length to P4 & 5 (sometimes also P6). Males with relatively thin, translucent cuticle (like females); pereonites without furrows.................................................................................. 9 8. Gnathopod 2; posterior margin of propodus with weak setae distally; dactyl relatively slender, not pressed against propodus. Pereopod 4 slightly shorter than P5, or sub-equal in length. Males; head with short lateral lobe at base of A1; pereonites with relatively deep furrows, especially for pereonites 1–4; telson length about one-third peduncle of U3.... M. colemani sp. nov. - Gnathopod 2; posterior margin of propodus with pairs of strong setae; dactyl pressed against medial surface of propodus. Pereopod 4 slightly longer than P5. Males; head without lobe at base of A1; pereonites with slight furrows, barely noticeable on pereonites 5–7; telson length about half peduncle of U3................................... M. neosphaericus sp. nov. 9. Gnathopod 2 simple................................................. M. birsteini (Vinogradov, 1956) comb. nov. - Gnathopod 2 chelate.................................................................................. 10 10. Gnathopod 2; propodus sometimes expanded distally, with distinct postero-distal excavation. Pereopods 3–7 with relatively weak, almost semi-colon-like dactyls. Pereopods 3–5; propodus shorter than carpus, tapering distally................................................................................................ M. sphaericus Bovallius, 1885 - Gnathopod 2; propodus narrowing distally, with moderate postero-distal excavation. Pereopods 3–7 with relatively robust, curved dactyls. Pereopods 3–5; propodus equal in length to carpus, evenly broad............................................................................................. M. vinogradovi (Shih & Hendrycks, 1996) comb. nov. : Published as part of Zeidler, Wolfgang, 2012, A review of the hyperiidean amphipod families Mimonectidae and Proscinidae (Crustacea: Amphipoda: Hyperiidea: Scinoidea) 3533, pp. 1-74 in Zootaxa 3533 on pages 19-20 : {"references": ["Woltereck, R. (1909) Reports on the scientific results of the expedition to the eastern tropical Pacific in charge of ALEXANDER AGASSIZ, by the U. S. Fish Commission Steamer \" Albatross \" from October, 1904, to March, 1905, Lieutenant-Commander L. M. Garrett, U. S. N., Commanding. Amphipoda. Die Hyperiidea Gammaroidea. Bulletin of the Museum of Comparative Zoology, Harvard, 52 (9), 145 - 168, plates 1 - 8.", "Stephensen, K. & Pirlot, J. M. (1931) Les Amphipodes Hyperides du genre Mimonectes Bovallius (inclus: Sphaeromimonectes Woltereck et Parascina Stebbing) et de quelques genres voisins (Archaeoscina Stebbing, Micromimonectes Woltereck, Microphasma Woltereck et Proscina n. g.). Archives de Zoologie Experimentale et Generale, 71 (4), 501 - 553.", "Pirlot, J. M. (1929) Resultats zoologiques de la croisiere atlantique de l' ' Armauer Hansen' (Mai-Juin 1922). 1. Les Amphipodes Hyperides. Memoires de la Societe Royale des Sciences de Liege, serie 3, 15 (2), 1 - 196.", "Bovallius, C. (1885) Mimonectes, a remarkable genus of Amphipoda Hyperiidea. Nova acta Regiae Societatis scientiarum Upsaliensis, ser. III, 13, 1 - 15, plates 1 - 3.", "Vinogradov, M. E. (1956) Hyperiids (Amphipoda: Hyperiidea) of the western Bering Sea. Zoologicheskii Zhurnal, 35 (2), 194 - 218. [In Russian].", "Shih, C. - T. & Hendrycks, E. A. (1996) Proscina vinogradovi, new species, and Cheloscina antennula, new genus, new species (Amphipoda; Hyperiidea: Proscinidae) from the eastern North Pacific. Journal of Crustacean Biology, 16 (3), 591 - 601."]}