Chauliopleona dentata Dojiri & Sieg 1997

• Main Authors: Larsen, Kim, Shimomura, Michitaka
• Format: Other/Unknown Material
• Language: unknown
• Published: 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Akanthophoreidae; Chauliopleona; Chauliopleona dentata; Seta; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/5621466; https://doi.org/10.5281/zenodo.5621466

Chauliopleona dentata Dojiri & Sieg, 1997 (Figs 20 and 21) Material examined. Paratypes (from California), 2 females, 1 male (SBMNH 144123), Sta. 4 C, 33 ° 50.40 ’N, 118 ° 26.22 ’W, 76 m. Non-type material, 1 female, 1 male (SBMNH 36937), same locality; 1 female (SBMNH 369416), Sta. 6 B, 33 ° 52.27 ’N, 118 ° 34.12 ’W, 75 m; 6 females, 3 males, 2 mancas (SBMNH 36418), Sta. R- 4 -3, 34° 43.01 ’N, 120 ° 47.23 ’W, 92 m; 5 females (1 dissected), 1 male, 2 mancas (SBMNH 36420), Sta. R- 4 -1, 34° 43.01 ’N, 120 ° 47.23 ’W, 92 m; 1 female (ZMH K- 40226), Antarctica (doubtful if this specimen is C. dentate), RV Victor Jensen Station 1270, 54° 55.’S, 70 ° 45 ’W, 135 m. Diagnosis. Maxilliped basis with long seta at palp insertion. Description (body of holotype, appendages of dissected paratype). FEMALE (from California). Body (Fig. 20 A, B). Elongate, about 7.5 times as long as wide. Carapace. Marginally shorter than pereonites 1 and 2 combined. Eyes absent. Pereonites. Pereonites wider than long. Pleon. Short (including pleotelson 25 % total body length). All pleonites subequal, with small posterior protuberance. Pleonite 5 with ventral posterior-directed spine not protruding beyond pleotelson apex. Pleotelson longer than the lengths of two free pleonites combined, apex rounded, and covered by a dorsal plate. Antennule (Fig. 20 C). With 4 articles, shorter than carapace. Article 1 as long as rest of antennule, with one simple and several setulose distal/subdistal setae. Article 2 shorter than half of article 1, with five distal/ subdistal setae. Article 3 shorter than article 2, with 1 simple distal seta. Article 4 about as long as article 2, with five distal setae and one aesthetasc. Antenna (Fig. 20 D). 0.75 times as long as antennule. Article 1 wider than following articles. Article 2 shorter than article 1, with one distal seta. Article 3 longer than other articles, with clear fusion line and one setulose setae at fusion line, with five simple and one setulose distal setae. Article 4 longer than article 1, with one ...