Leptochelia gadgeti Edgar, 2012, n. sp.

• Main Author: Edgar, Graham J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Leptocheliidae; Leptochelia; Leptochelia gadgeti; Armstrong Bay; Seta; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/3503034; https://doi.org/10.5281/zenodo.3503034

Leptochelia gadgeti n. sp. (Figs 8–9) Material examined. Holotype. Male (NMV J 62314), 3.1 mm, Cliff Head, WA (29.52 °S 114.99 °E), 1 m depth, seagrass (Amphibolis antarctica) washings, 5 January 1986. Paratypes. Two males (NMV J 62315), holotype location, June 1985 – June 1987. Other material. Ten males (NMV J 62316), Seven Mile Beach, WA (29.17 °S 114.89 °E), 1 m depth, seagrass (Amphibolis antarctica and A. griffithii) washings, June 1985 – June 1987. Two males (NMV J 62317) Little Armstrong Bay, Rottnest Island, WA (31.99 °S 115.50 °E), seagrass washings, 1 m depth, 21 Jan 1996. Description. MALE. Body (Fig. 8). Observed length 1.9–3.2 mm; body slender, about ten times longer than broad; cephalothorax frontal margin produced into rostrum, lateral margin with concavities where basis and merus of cheliped adjoin, length about 1.5 times width and approximately one-fifth body length; eyes relatively small, pear-shaped, about one-sixth length of cephalothorax. Pereon just over two-thirds total length; pereonite- 1 length similar to width; pereonites 2 and 3 similar, about 1.6 times length of pereonite- 1, length about 1.2 times width, waist-like concavity in posterior lateral margin; pereonite- 4 and 5 similar, about 1.4 times length of pereonite- 3, length about 1.5 times width, waist-like concavity in posterior lateral margin; pereonite- 6 half length and similar width to pereonite- 5. Pleonites 1–5 similar, together one-eighth as long as body and slightly wider. Pleotelson length similar to pleonite 5; posterior margin with small paired central setae, one or two simple lateral setae. Antennule (Fig. 8). Length two-third length of body, article- 1 about 20 times longer than wide, with distal seta; article- 2 about 45 % of article- 1, length about 12 times width; article- 3 length about one-tenth of article- 2, with three distal aesthetascs; articles 4–10 comprising flagellum that extends about one-quarter of total antennule length, each article with two or three aesthetascs distally; terminal article minute. ...