Paraleptognathia tenuichela Guerrero-Kommritz 2004, n. sp.

• Main Author: Guerrero-Kommritz, Jürgen
• Format: Other/Unknown Material
• Language: unknown
• Published: 2004
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Akanthophoreidae; Paraleptognathia; Paraleptognathia tenuichela; Seta; South Atlantic Ocean
• Online Access: https://zenodo.org/record/5515831; https://doi.org/10.5281/zenodo.5515831

Paraleptognathia tenuichela n. sp. (Figs 26, 27) Material examined: Six individuals. Holotype ZMH K­40631 RV ”Meteor” 48 St. 350, one female. Paratypes ZMH K­40632 RV ”Meteor” 48 St. 341, two females (1 dissected), ZMH K­40633 RV ”Meteor” 48 St. 346, one female, ZMH K­40364 RV ”Meteor” 48 St. 346, one female. Diagnosis: Chela long and slender, rami of pleopods long and slender, no plumose seta. Description: non­ovigerous female. Body (Fig. 26a, b): long, about 9.5 times longer than broad. Body length 1.4 to 3.3 mm. Cephalothorax (Fig. 26a, b): about 1.3 times longer than broad. Pereon (Fig. 26a, b): pereonite 1 as long as 6; pereonites 2, 3 and 5 subequal and longer than 1; pereonite 4 longest. Pleon (Fig. 26a, b): pleonites subequal, pleotelson pentameral. Antennule (Fig. 26c): article 1 longest, with one long and four short setae; article 2 with one long simple and one short simple setae; article 3 shortest with two terminal simple setae; article 4 with four terminal setae. Antenna (Fig. 26d): article 1 short, semifused to cephalothorax; article 2 as long as wide, with one short spiniform dorsal seta; article 3 with one simple distal seta; article 4 longest, with two distal simple long, two distal simple short setae; article 5 with one simple long seta distally; article 6 shortest, with two terminal simple setae. Labrum (Fig. 27d): hood­shaped, with row of setules at lateral and apical margins. Mandible (Fig. 27c): well calcified; pars molaris bent ventrally; lacinia mobilis tipped by two tubercles. Maxillula (Fig. 27a): endite with three rows of ventral setules, with eight simple terminal spiniform setae. Maxilla (Fig. 27b): triangular, elongated, smooth. Labium (Fig. 27e): composed of two lobes with three short simple setae at distal outer margin. Maxilliped (Fig. 27f): endites with distal tubercles. Epignath: lost during dissection. Cheliped (Fig. 26g): basis as long as carpus; merus naked; carpus with simple ventral seta; carpal shield weak, poorly developed; propodus long, slender, about three times as ...