Ampelisca mingela, Poore & Lowry, 2023

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, Records of the Australian Museum (Rec. Aust. Mus.) 75 (4), pp. 519-533 : 526-528

publication ID	https://doi.org/ 10.3853/j.2201-4349.75.2023.1890
DOI	https://doi.org/10.5281/zenodo.10957381
persistent identifier	https://treatment.plazi.org/id/403187E4-FFA5-FFE5-FC13-13C53E6FFB43
treatment provided by	Felipe
scientific name	Ampelisca mingela
status	sp. nov.

Treatment

Ampelisca mingela View in CoL sp. nov.

urn:lsid:zoobank.org:act:6EC8E9AB-00A8-40A0-AE4E-0FF1D562224A

Figs 4 View Figure 4 , 5 View Figure 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 GoogleMaps . Paratypes: AM P.105871, 2 specimens, Lizard Island lagoon, 14°40'S 145°27'E, plankton tow, J. M. Leis, 24 Jul 1979 GoogleMaps ; AM P.105863, 1 specimen, Lizard Island, Blue Lagoon, 500 m east of Palfrey Island , 14°40'S 145°28'E, A GoogleMaps . 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 GoogleMaps . 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 GoogleMaps ; 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 GoogleMaps ; AM P.105862, 2 specimens, Lizard Island, halfway between Mangrove Beach and South Island , 14°40'S 145°28'E, A GoogleMaps . 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 GoogleMaps . 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 GoogleMaps ; 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 GoogleMaps ; 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 GoogleMaps ; NMV J2164 About NMV , 6 About NMV 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 GoogleMaps .

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).