The caridean shrimps of the genus Lysmata Risso, 1816 (Decapoda: Lysmatidae) from Madagascar collected during the Atimo-Vatae expedition: a new species and two new records

The present study focuses on shrimps belonging to the genus Lysmata Risso, 1816, collected from Madagascar during Atimo Vatae expedition carried out in 2010. malagasy sp. nov. is a new species clade named “long accessory ramous” or “cosmopolitan” previous phylogenetic studies. can be distinguished only two other representatives of this group Indo-west Pacific, L. ternatensis De Man, 1902, and trisetacea (Heller, 1861), by ramus lateral antennular flagellum consisting four elongated articles. lipkei Okuno & Fiedler, 2010 reported here with remarkable extension its known range after original description Japan. This has also been Singapore and, as alien species, Brazil. Lastly, kuekenthali 1902 numerous localities Indo-West Pacific biogeographic area, for first time Madagascar. Results morphological molecular analyses suggest that hochi Baeza Anker, 2008 Caribbean Sea synonym kuekenthali, thus latter western Atlantic.