Anamixis bazimut Thomas 1997
Creators: name: White, Kristine N.
name: Thomas, James Darwin
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Leucothoidae
Anamixis
Anamixis bazimut

description: <i>Anamixis bazimut</i> Thomas, 1997 (Figs 1, 2) <i>Anamixis bazimut</i> Thomas, 1997: 45–47, fig. 2. — Lowry &amp; Stoddart, 2003: 154 (catalogue). <b>Material examined.</b> 1 male, AM P70802 (QLD1649); 1 male, AM P70977 (QLD 1684); 2 males, AM P71542 (QLD 1823); 3 males, AM P71505 (QLD 1823); 1 male, GCRL2882 (SEL/LZI-2-1); 1 male, GCRL2883 (SEL/LZI-2-3); 1 male, AM P79867 (SEL/LZI-2-7). <b>Type locality.</b> Tab Anchorage, Madang, Papua New Guinea (05°10.3’S 145°50.6’E). <b>Description.</b> Based on male, 2.8 mm, AM P79867. <b>Head.</b> <i>Head</i> length less than pereonite 1 <i>+</i> 2, anterior margin transverse, without serrations or teeth, anterodistal margin quadrate with cusp, ventral cephalic keel subquadrate, rostrum large; eyes round, with 10 or more scattered ocelli. <i>Antenna 1</i> 0.3 x body length; flagellum 8-articulate, peduncle width less than 2 x article 2. <i>Antenna 2</i> 0.3 x body length, shorter than antenna 1; flagellum 2-articulate. <i>Maxilliped</i> inner plates fused, reduced, distal margin with small cleft, bare; outer plate smooth, reduced, not extending past base of palp article 1, bare; palp 4-articulate, article 4 elongate, extremely slender, strongly recurved. <b>Pereon.</b> <i>Coxae 1–4</i> relative widths 1.0:2.8:3.2:3.1. <i>Gnathopod 1</i> coxa smooth, bare, anterodistal corner not produced, truncate, distal margin with v-shaped projection, posterodistal margin quadrate, facial setae absent; basis constricted proximally, anterior and posterior margins bare; ischium bare; carpus and propodus narrow; carpus length 16 x width, distal margin bare; propodus evenly curved, posterior margin tuberculate, palm dentate with 12 distal setae, geniculate; dactylus absent. <i>Gnathopod</i> 2 coxa length 2 x width, slightly narrower than coxa 3, anterior margin smooth, anterodistally subquadrate; distal margin produced, posterior margin straight, facial setae absent; basis widened distally, without tubercles or serrations, anterior margin with 4 setae, posterior margin bare; ischium with 2 anterodistal setae; carpus subequal in length to propodus, straight, distally tapered, anterior margin smooth, anterodistal margin with indentation; propodus posterior margin without teeth/serrations, with 1 mediofacial setal row above midline, reaching 0.2 x propodus length, 1 row of 5–7 submarginal setae, palm linear with 1 major projection; dactylus slightly recurved with paired setae on posterior margin, anterior margin distally subacute, reaching 0.5 x propodus length. <i>Pereopod</i> 3 coxa length 1.3 x width; anterodistal corner over-riding distal face of coxa 2, not extending below it; distal margin straight with posterior cusp, bare, posterior margin straight, facial setae absent. <i>Pereopod 4</i> coxa anterior margin slightly concave, distal margin rounded with posterior cusp, posterior margin straight, facial setae absent. <i>Pereopods 5–7</i> coxa facial setae absent; basis width length ratios 1:1.3, 1:1.5, 1:1.5. <i>Pereopods 5–6</i> posterior margins smooth, bare. <i>Pereopod 7</i> basis posterior margin smooth, setose. <b>Pleon.</b> <i>Epimera 1–3</i> bare. <i>Epimeron 3</i> posteroventral corner produced. <i>Uropods 1–3</i> relative lengths 1.0:0.8:1.1; inner and outer ramus with robust setae. <i>Uropod 1+3</i> peduncle subequal to inner ramus length. <i>Uropod 2</i> peduncle 0.5 x inner ramus length. <i>Uropods 1–2</i> outer ramus 0.6 x inner ramus length. <i>Uropod 3</i> outer ramus 0.8 x inner ramus length. Telson 1.4 x longer than wide, with 2 plumose dorsofacial setae, apex rounded. <b>Female</b> (sexually dimorphic characters). Leucomorphs unknown. <b>Habitat.</b> In sponges and a species of <i>Halimeda</i> Lamouroux, 1812, from coral rubble and sandy bottom on a patch reef in the channel between outer reefs. Thomas (1997) reported the Papua New Guinea specimens from small asconoid sponges in rubble areas. <b>Remarks.</b> <i>Anamixis bazimut</i> is distinct from all other species in the following characters: transverse anterior head margin, subquadrate distal keel projecting below the head, gnathopod 3 coxa slightly shorter than gnathopod 2 and pereopod 4 coxa and its produced coax 2 distal margin. This species is similar to <i>Anamixis kateluensis</i> and <i>Anamixis moana</i> Thomas, 1997 in its subequal coxa 2 <i>–</i> 4, broad ventral cephalic keel and its general shape and morphology of gnathopod 2. <i>Anamixis bazimut</i> and <i>A. kateluensis</i> both have apical processes on the inner plates of the maxilliped, whereas <i>A. moana</i> has truncate inner plates. <b>Distribution.</b> <i>Australia</i>. Queensland: Lizard Island to Orpheus Island (current study); Great Barrier Reef (Lowry &amp; Stoddart 2003). <i>Papua New Guinea</i>: Bismarck Sea, Madang Lagoon (Thomas 1997).
description: Published as part of <i>White, Kristine N. &amp; Thomas, James Darwin, 2009, Leucothoidae *, pp. 494-555 in Zootaxa 2260 (1)</i> on pages 495-498, DOI: 10.11646/zootaxa.2260.1.29, http://zenodo.org/record/5323471
description: {"references": ["Thomas, J. D. (1997) Systematics, ecology, and phylogeny of the Anamixidae (Crustacea: Amphipoda). Records of the Australian Museum, 49, 35 - 98.", "Lowry, J. K. &amp; Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea. In Beesley, P. L. &amp; Houston, W. W. K. (Eds), Zoological Catalogue of Australia, Vol. 19.2 B, 531 pp, Melbourne: CSIRO Publishing, Australia.", "Lamouroux, J. V. G. (1812) Extrait d'un memoire sur la classification des polypiers coralligenes non entierement pieurreux. Nouveau Bulletin des Sciences de la Societe Philomatique de Paris 3 (63), 181 - 188."]}