The Indo-West Pacific species of Neaxiopsis and Neaxius (Crustacea: Axiidea: Strahlaxiidae) Author Poore, Gary C. B. Author Dworschak, Peter C. text Memoirs of Museum Victoria 2018 Mem. Mus. Vic. 2018-12-31 77 15 28 http://dx.doi.org/10.24199/j.mmv.2018.77.02 journal article 54599 10.24199/j.mmv.2018.77.02 1aacdee9-820c-4e86-9968-63896da2088d 1447-2554 8065257 urn:lsid:zoobank.org:pub:9CAD42D5-099D-4BA9-9CFF-E377A8D422CA Neaxius trondlei Ngoc-Ho, 2005 Neaxius trondlei Ngoc-Ho, 2005: 59–63 , figs 6, 7. Material examined . French Polynesia , Marquesas Is , Ua Huka , Hane Bay (MUSORSTOM 9 stn 19), MNHN Th 1419 ( holotype male, 29 mm ), MNHN Th1427 ( paratypes : male, 30 mm ; female, 21 mm ). W of Haamamao Bay , MNHN Th1428 ( paratype female, 13.5 mm ) . Diagnosis. Carapace supra-antennal margin without anteriorly directed spine; anterolateral margin with 3 or 4 spines, dorsalmost anterolaterally directed; branchiostegite anterior margin unknown; cervical groove with 2 or 3 spines along posterior margin. Telson 1.5 times as wide as long; tapering strongly from widest point to posterior margin, posterior margin about 0.6 greatest width; anterior transverse ridge straight, curving laterally but not reaching lateral margin at its widest point; posterior transverse ridge situated at half distance between anterior ridge and posterior margin; posterolateral margin without tubercles; posterior face concave, with well-defined third transverse ridge, without pair of sublateral longitudinal ridges subtended from ends of second transverse ridge. Antenna article 2 with 1 or 2 upper-mesial spines, without lateral spines; scaphocerite with 1 mesial sharp spine, 5 sharp ventral spines; article 4 lower margin without spines. Cheliped merus, lower margin with 3 or 4 spines, lateral face without row of spines. Pereopod 2 merus, lower margin without spines. Pereopod 3 merus, lower margin without spines. Remarks. Neaxius trondlei is distinguished by the unique combination of no spines on the lateral margin of the second article of the antenna and no spines on the lateral face of the cheliped or on the lower margins of pereopods 2 and 3. The species and N. capricornicus both occur in French Polynesia but c. 1400 km apart. They can be differentiated by the presence of spines along the cervical groove and spines on article 2 of the antenna.