Aoridae * Myers, Alan A. Zootaxa 2009 2009-10-08 2260 1 220 278 6KJ2S Myers 2009 [151,505,1851,1877] Malacostraca Aoridae Globosolembos Animalia Amphipoda 45 265 Arthropoda species springthorpei sp. nov.  ( Figs 35, 36, Pl. 2B)   Type material. Holotype, male, 4.0 mm, AMP 75467, 500 m north-east of North Point, Lizard Island ( 14°38.700’S 145°27.213’E),  Halimedasp.(green alga) with epiphytes, soft bottom with forams, crinoids,  Halimeda macroloba,  Halimeda cylindracea,  Caulerpa taxifolia,  Gracilariasp.,  Lobophorasp) and sediment, 23.9 m, R. T. Springthorpe, 27 February 2005(QLD 1707). Paratypes: 7 males, 3 females, same data as holotype, AMP75468 (QLD 1707).  Additional material examined.  1 male, 1 female, AMP71009 (QLD 1707).    TypeLocality. Off North Point, Lizard Island, Queensland, Australia( 14°40'S 145°28'E).   Etymology.Named for Roger Springthorpe, who collected all the material of this new species.   Description.Based on holotype, male, 4.0 mm, AM P75467.  Head. Headlateral cephalic lobes apically rounded; eye large, orange brown. Antenna 1flagellum with about 16 articles; accessory flagellum multiarticulate. Antenna 2with moderately profuse long setae. Lower lipwith fine setae and stout setae. Maxilla 1inner plate with 1 long pectinate apical seta. Mandible, palp article 3 1.5 x length of article 2, posterior margin weakly falcate, posterior margin with setae of more than two distinct lengths.   FIGURE 36.  Globosolembos springthorpei  sp. nov., holotype, male, 4.0 mm, AM P75467, female, 3.5 mm, AM P75468, east of North Point, Lizard Island, Great Barrier Reef.  Pereon. Pereoniteswithout sternal spines. Gnathopod 1enlarged in both sexes; coxa weakly produced anterodistally, rounded; basis robust, half or more as broad as long, anterodistal margin with strong flange; ischium anterior margin without flange, posterior margin with few setae; merus not greatly elongated, fused along its entire length with carpus, posterior margin with few setae, without posterodistal spine; carpus one quarter length of propodus, anterior margin without spine; posterior margin with obtuse spine; propodus anterior margin moderately setiferous, posterior margin convex, palm short, straight, delimited from posterior margin, margin forming a broad excavate sinus, defined by strong posterodistal marginal spine, without robust seta, without spine near base of dactylus; dactylus less than half length of propodus, overlapping palm. Gnathopod 2subchelate; basis anterodistal margin with flange, posterodistal margin without robust setae, with few setae along length of basis; merus not enlarged or produced away from carpus; carpus distinctly longer than propodus, anterior margin not lobate, with long setae; carpus and propodus anterior margin with sparse long setae, palm with robust seta defining palm. Pereopod 3without brush of long setae on merus. Pereopod 6basis not produced posterodistally. Pereopod 7less than 125% length of pereopod 6.  Pleon. Epimeron 3posterodistal margin rounded. Uropod 1rami subequal, peduncle much longer than broad, distoventral spine much less than one third length of peduncle. Uropod 2biramous; peduncle with distoventral spine much less than half length of peduncle. Uropod 3biramous, rami distinctly unequal, endopod about 1.5 x length of peduncle.  Telsonwith distal fine setae only.  Female(sexually dimorphic characters). Based on paratype, female, 3.5 mm, AMP75468. Gnathopod 1carpus more than one third length of propodus; propodus palm oblique, convex, delimited by acute, triangular spine, dactylus shorter and stouter than that of male.  Habitat.  Halimedawith epiphytes.   Remarks.This species is very close to  G. forgesi Myers, 1998from New Caledonia, but differs in a number of ways. In the male gnathopod 1, the carpus is much shorter (about one quarter the length of the propodus), than it is in  G. forgesi(more than a third length of propodus) and is strongly produced posterodistally (scarcely produced in  G.forgesi); the spine on the posterior margin of the propodus is marginal in  G. springthorpei  sp. nov.but submarginal in  G. forgesi. In the male gnathopod 2, the carpus of  G. springthorpeiis distinctly longer than the propodus whereas these two articles are subequal in  G. forgesi. In the female gnathopod 1 the spine on the posterior margin of the propodus is acute in  G. springthorpeibut obtuse in  G. forgesi. The uropod 1 distoventral spine of  G. springthorpeiscarcely reaches one quarter the length of the peduncle whereas in  G. forgesiit approaches one half the length of the peduncle. Finally, article 3 of the mandibular palp is 1.5 x the length of article 2 in  G. springthorpeiwhereas in  G. forgesiarticles 2 and 3 are subequal.   Distribution.  Australia. Queensland: off North Point, Lizard Island (current study). P71009 [587,1098,268,294] AM 46 266 2 1 1 [198,1250,306,332] Australia Lizard Island -14.666667 Off North Point 1287 145.46666 North Point 46 266 1 Queensland holotype P75468 AM 48 268 1 paratype