TY - JOUR AU - Thanh, Dang Ngoc PY - 2012/12/30 Y2 - 2024/03/29 TI - New species of Macrobrachium Bate (Decapoda: Caridea: Palaemonidae) from mountainous region Chi Linh (Hai Duong) Northern Vietnam JF - Academia Journal of Biology JA - AJB VL - 34 IS - 4 SE - Articles DO - 10.15625/0866-7160/v34n4.2673 UR - https://vjs.ac.vn/index.php/vjbio/article/view/2673 SP - 405-407 AB - <p><strong><em>Macrobrachium chilinense</em></strong><strong> sp. n.</strong></p> <p> </p> <p>Prawn of moderate size, body length 51-54 mm. Carapace glabrous, without microspinules. Rostrum narrow, straight overeaching Ant I peduncle, just reaching distal end scaphocerite. Rostrum formula: 3 + 7-8/3. Dorsal teeth unequally spaced, usually with wide gaps between 1-3 teeth on carapace.</p> <p>Second pereopods equal in size with body length, left and rigth similar in shape, all segments cylindrical form, covered with microspinules. Merus shorter than carpus (ratio 12/15), carpus scarcely equal in size with palm. Fingers very short, in comparision with palm, (0.3 times), distally armed with seta tuft, both moveable and immoveable fingers with 2 proximal teeth. First pleopod in male with endopod slightly concave at inner margin.</p> <p>Sexual dimorphism showed in smaller second pereopods in female. Eggs dimension d = 1-1.2 mm.</p> <p>Dimensions (male): (mm) tl; 51-54; cl: 15; M; 11-12: C: 14-16; D = 5-6.</p> ER -