Ampelisca mingela Poore & Lowry 2023, sp. nov.
Creators: name: Poore, Gary C. B.
name: Lowry, James K.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Ampeliscidae
Ampelisca
Ampelisca mingela

description: Ampelisca mingela sp. nov.
urn:lsid:zoobank.org:act: 6EC8E9AB-00A8-40A0-AE4E-0FF1D562224A
Figs 4, 5
Holotype: AM P.85992 (with 4 microslides), female, tl. = 9.0 mm. Australia, Queensland, Lizard Island, between Mangrove Beach and South Island, 14°41'S 145°28'E, 30 Sep 1978. Paratypes: AM P.105871, 2 specimens, Lizard Island lagoon, 14°40'S 145°27'E, plankton tow, J. M. Leis, 24 Jul 1979; AM P.105863, 1 specimen, Lizard Island, Blue Lagoon, 500 m east of Palfrey Island, 14°40'S 145°28'E, A. R. Jones & C. J. Short, 9 Oct 1978; AM P.105864, 1 specimen, Lizard Island, Blue Lagoon, 500 m east of Palfrey Island, 14°40'S 145°28'E, A. R. Jones & C. J. Short, 9 Oct 1978; AM P.105866, 4 specimens, Lizard Island, fringing reef between Bird Islet and South Island, 14°41'S 145°27'E, J. K. Lowry, 7 Oct 1978; AM P.105868, 2 specimens, Lizard Island, fringing reef between Bird Islet and South Island, grass beds, 14°40'S 145°28'E, P. C. Terrill, 9 Oct 1978; AM P.105862, 2 specimens, Lizard Island, halfway between Mangrove Beach and South Island, 14°40'S 145°28'E, A. R. Jones & C. J. Short, 30 Sep 1978; AM P.105865, 1 specimen, Lizard Island, mid-channel between Bird Islet and Trawler Beach, 14°40'S 145°28'E, A. R. Jones, 12 Oct 1978; AM P.105867, 1 specimen, Lizard Island, off southern point of Mermaid Cove, 14°41'S 145°28'E, C. J. Short & P. C. Terrill, 8 Oct 1978; AM P.105869, 3 specimens, Lizard Island, reefs at western end of Blue Lagoon, 14°40'S 145°28'E, P. C. Terrill, 5 Oct 1978; AM P.105870, 1 specimen, near Lizard Island, 1.6 km south-west of Eagle Island, 14°38'S 145°22'E, air lift, J. K. Lowry, 17 Oct 1978; NMV J2164, 6 individuals, Australia, Queensland, Lizard Island, Blue Lagoon, 10 m, 30 Oct 1978. AM P.105872, 4 specimens, Heron Island, bommie west of harbour entrance, 23°26'S 151°55'E, J. K. Lowry, 7 Dec 1978.
Description of holotype. Head. Head 1.5 times as long as deep; anteroventral margin oblique-horizontal; eyes present, with 2 pairs with minute cuticular lenses. Antenna 1 peduncular article 2 1.5 times length of article 1; flagellum almost reaching end of peduncle of antenna 2. Mandible palp article 2 tapering distally.
Pereon. Coxae 1–3 with small posteroventral hooks on coxae 1 and 2. Gnathopod 1 coxa anterior margin straight, anteroventral corner not produced. Pereopod 3 merus with 2 distal setae on extensor margin, with 6 distal setae on flexor margin; carpus with 3 setae on flexor margin; propodus with 7 setae on extensor margin; dactylus twice as long as propodus. Pereopod 4 merus 2.3 times as long as wide, with setose margins; dactylus twice as long as propodus. Pereopod 7 basis posterodistal margin reaching half ischium length, convex, oblique, distal margin densely setose; ischium longer than merus; merus anterior lobe slightly produced along anterior margin of carpus; carpus short (about as long as broad), carpus anterior lobe overlapping one-quarter length of propodus; propodus inflated; dactylus lanceolate.
Pleon. Epimeron 2 posteroventral margin broadly convex. Epimeron 3 ventral margin convex, posteroventral corner with sharp triangular tooth under shallow notch. Urosomite 1 with distally upturned carina. Urosomites 2–3 dorsal margin concave. Uropod 1 reaching beyond base of uropod 2 rami. Uropod 2 inner ramus upper margin with 7 short robust setae, lower margin with 2 short robust setae; outer ramus with 1 long subterminal robust seta, upper margin with 4 short robust setae, outer margin with 6 short robust setae. Uropod 3 inner ramus broadly lanceolate, upper margin with 1 seta, lower margin with distal setae; outer ramus 4 times as long as wide, distal upper margin with 8 setae. Telson 1.6 times as long as wide, deeply cleft (70%), lateral margins evenly convex, with sublateral ridge bearing few setae; with pair of posterior prominent triangular teeth separated from lateral margins by deep notches bearing 2 pairs of subapical setae.
Distribution. Australia, Queensland (Lizard Island, Heron Island), lagoon, to 10 m.
Remarks. The telson, arrangement of the two pairs of cuticular lenses, pereopod 7 and relative lengths of the antennae of Ampelisca mingela sp. nov. resemble those of A. dingaal King, 2009 also from Lizard Island. The posterior margin of epimeron 3 of A. mingela is convex (straight in A. dingaal), article 2 of the mandibular palp is three times as long as wide (five times), antenna reaches most of the way along article 5 of antenna 2 (less than halfway) and the telson is 1.6 times as long as wide (2.0 times).
description: Published as part of Poore, Gary C. B. & Lowry, James K., 2023, New Australian Species of Ampeliscidae (Crustacea: Amphipoda) from the Great Barrier Reef and Eastern Australia with a Key to Australian Species, pp. 519-533 in Records of the Australian Museum (Rec. Aust. Mus.) (Rec. Aust. Mus.) 75 (4) on pages 526-528, DOI: 10.3853/j.2201-4349.75.2023.1890, http://zenodo.org/record/10413670