Fissarcturus Brandt 1990

• Main Authors: Nickel, Judith M., Brandt, Angelika
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Antarcturidae; Fissarcturus; Hale; Ohlin; Antarc*
• Online Access: https://zenodo.org/record/6149866; https://doi.org/10.5281/zenodo.6149866

Genus Fissarcturus Brandt, 1990 Fissarcturus: Brandt 1990: 129; Wägele, 1991: 174; Poore, 2001: 224. Type species: Fissarcturus emarginatus Brandt, 1990. Species composition: Fissarcturus bathyweddellensis Brandt, 2007, Fissarcturus elongatus (Brandt, 1990), F. emarginatus Brandt, 1990, Fissarcturus granulosus (Nordenstam, 1933), Fissarcturus hirticornis (Monod, 1926), Fissarcturus mawsoni (Hale, 1946), Fissarcturus minutus (Brandt, 1990), Fissarcturus patagonicus (Ohlin, 1901), Fissarcturus paxillaris (Kussakin & Vasina, 1998), Fissarcturus poorei (Kussakin & Vasina, 1998), Fissarcturus robustus (Brandt, 1990), Fissarcturus rossi Brandt, 2007, Fissarcturus rugosus (Nordenstam, 1933), F. sandwichi Brandt, 2007, Fissarcturus scelerosus (Brandt, 1990), Fissarcturus stebbingnordenstami (Brandt, 1990), Fissarcturus stephenseni Wägele, 1991. Generic diagnosis. Eyes lateral, rounded or rather oval, sometimes absent; body slender and elongated, dorsally with spines on all segments. Cephalothorax dorsally with two well developed supraocular spines and often a second pair of spines about as long as or shorter than the supraocular ones. Lateral margins of head and pereonite 1 not expanded downwards to cover mouthparts. Pairs of mediodorsal, dorsolateral, lateral, supracoxal and/or coxal spines on each pereonite. All pleonites fused with pleotelson, pleonite 1 defined by suture. Tip of pleotelson cleft, forming two stout, long, diverging caudolateral spines or pleotelson with a pair of caudolateral pronounced spines. Antennula distalmost flagellar article with several pairs of aesthetascs; second flagellar article longer than usual in the family, third flagellar article shorter. Antenna shorter than or as long as body, stout, with short flagellum, a maximum of four flagellar articles and a distal claw-like article. Dactylus of pereopod 1 forming a strong subchela with propodus; dactylus not swollen, propodus long and slender. Dactylus of pereopods 2–4 cylindrical, with a short article and a terminal claw as long as ...