Nicomache Malmgren 1866

• Main Authors: Assis, José Eriberto De, Samiguel, Carmen Alonso, Christoffersen, Martin Lindsey
• Format: Text
• Language: unknown
• Published: Zenodo 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Maldanidae; Nicomache; Christoffersen; Malmgren; Arktis*
• Online Access: https://dx.doi.org/10.5281/zenodo.5685169; https://zenodo.org/record/5685169

Genus Nicomache Malmgren, 1866 Arwidsson 1907; Day 1967; Fauchald 1977. Type species: Sabella lumbricalis Fabricius, 1780, by monotypy. Emended diagnosis: Head without cephalic shield; anal plate with well-developed edge dorsally and ventrally; nuchal grooves straight and parallel, curved, or divergent; all rostral uncini in single row; acicular spines on setigers 1–3, rarely on 1–4; anal funnel with distal margin in lateral view straight, or slightly truncate obliquely; anal plate with unequal anal cirri. Remarks. Arwidsson (1907) reorganized the genus Nicomache into two subgenera on the basis of the shape of the anal funnel in lateral view. Nicomache ( Nicomache ) is characterized by having a straight, nonoblique distal margin in lateral view, while Nicomache ( Loxochona ) is diagnosed as having a distally obliquely truncate anal funnel in lateral view. Imajima & Shiraki (1982) describe some species of this genus, which confirm this classification scheme. Another important diagnostic character refers to edge of the anal plate. This edge is well developed both dorsally and ventrally in Nicomache . In Petaloproctus Quatrefages, 1865 only the ventral edge is well developed, while the dorsal edge is reduced (Arwidsson 1907; Imajima & Shiraki 1982). : Published as part of Assis, José Eriberto De, Samiguel, Carmen Alonso & Christoffersen, Martin Lindsey, 2007, Two new species of Nicomache (Polychaeta: Maldanidae) from the Southwest Atlantic, pp. 27-37 in Zootaxa 1454 on page 31, DOI: 10.5281/zenodo.176321 : {"references": ["Arwidsson, I. (1907). Studien ber die Skandinavischen und Arktischen Maldaniden nebst zusammenstellung der brigen bisher bekannten Arten dieser Familie. Zoologische Jahrbcher, Supplement, 9, 1 - 308.", "Day, J. H. (1967). A monograph on the Polychaeta of southern Africa. Part 2 Sedentaria. Publication from the Trustees of the British Museum Natural History, London, pp. 656 - 878.", "Fauchald, K. (1977) The polychaete worms. Definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County, Science Series, 28, 1 - 188.", "Imajima, M. & Shiraki, Y. (1982). Maldanidae (Annelida: Polychaeta) from Japan. Part 1. Bulletin of the National Science Museum of Tokyo, A Zool 8, 7 - 46."]}