The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species Author Murano, Masaaki text Species Diversity 2012 2012-05-25 17 1 49 85 https://www.jstage.jst.go.jp/article/specdiv/17/1/17_KJ00008044955/_article journal article 10.12782/sd.17.1.049 2189-7301 1E500404-354B-4465-AEE8-3183269F6109 Amblyops sp. 4 (Fig. 25) Material examined . On e immature male (ca. 8.4 mm ), NSMT-Cr 21370, “Tansei Maru”, KT-71-12 Cruise , St . 575, 34°52 .4′N 138°36.6′E to 34°52 .5′N 138°37 .0′E , Suruga Bay , central Japan , 15 August 1971 , 17:54–18:19, 1020– 1248 m , sledge net . Remarks .ffli s specimen is characterized by the following features: (1) the eyeplate possesses a small but distinct papilliform projection on the anterior margin (Fig. 25A, B); (2) the antennal scale is large (three times as long as wide), and the distolateral spine extends slightly beyond the distal end of the blade (Fig. 25D); (3) the uropodal endopod is furnished with a single spine on the inner margin in the statocyst region (Fig. 25F); and (4) the telson is narrowly linguiform with a slight constriction at about the anteri- or two- hs and is armed with 28 spines on the posterior three- hs of each lateral margin, these spines being relatively long, and the posterior ones spatulate (Fig. 25E, G). fflere is no doubt that this specimen represents an undescribed species, but unfortunately it is still immature.