Lelehua myersi Serejo &amp; Sittrop, 2009, sp. nov.
Creators: name: Serejo, Cristiana S.
name: Sittrop, Daniela J.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Hyalidae
Lelehua
Lelehua myersi

description: <i>Lelehua myersi</i> sp. nov. (Figs 3, 4) <b>Type material.</b> Holotype, male, 3.5 mm, AM P80164, Picnic Beach, Palfrey Island, Lizard Island, Queensland, Australia (14°41.69’S 145°26.89’E), on the red alga <i>Galaxaura subfruiticulosa</i> Chou, from reef flat, 1 m, R. A. King, 27 February 2005 (QLD 1704). Paratypes: 1 male, 3.5 mm, AM P80165; 1 female, 3.1 mm, AM P80166; 1 female, 3.3 mm, AM P80167; 57 males, 3.2–3.7 mm and 29 females, 2.2–3.3 mm, AM P71064; 2 males and 2 females, MNRJ; same locality. 2 females, 2.4 and 2.5 mm, AM P 70572, 200 m off Research Beach, Lizard Island, Queensland, Australia (14°40.834’S 145°26.749’E), algae on aquarium pipe, sandy bottom, coral reef, 2 m, J. Just, 22 February 2005 (QLD 1618), 1 male, 3.1 mm and 1 female, 2.7 mm, AM P71031, Picnic Beach, Palfrey Island, Lizard Island, Queensland, Australia (14°41.69’S 145°26.89’E), algal mat and fine sediment from rubble bottom on reef flat, 3 m, S.E. LeCroy, 27 February 2005 (QLD 1708); 1 male, 3.9 mm, AM P71090, 20 males, 2.5–4.1 mm and 31 females, 2.3–3.7 mm, AM P71097, Picnic Beach, Palfrey Island, Lizard Island, Queensland, Australia (14°41.69’S 145°26.89’E), green alga <i>Codium</i> sp. from reef flat, 2 m, T. Krapp-Schickel, 27 February 2005, (QLD 1716), 1 male, 3.6 mm, AM P71185, Mermaid Cove, Lizard Island, Queensland (14°38.91’S 145°27.26’E), encrusting algae and rubble from sand with rubble bottom, 2 m, T. Krapp-Schickel, 28 February 2005 (QLD 1730). <b>Etymology.</b> The name of the species is in honor to Dr Alan Myers, recognized senior amphipod researcher and also one of the editors of this book. <b>Description.</b> Based on holotype, male, 3.5 mm, AM P80164. <b>Head.</b> <i>Head</i> antenna 1 slightly longer than half way of antenna 2; lateral cephalic lobe broad and distally truncated; eyes small and round. <i>Upper lip</i> distally setose. <i>Mandible</i>, left lacinia mobilis 5-dentate, accessory setal row with 2 robust setae and a long plumose seta, molar well triturative. Lower lip normal for the family. <i>Maxilla 1</i> inner lobe with 2 long plumose setae; outer lobe with 9 setal-teeth, palp surpassing slightly the base of setal-teeth. Maxilla 2 normal for the family. Maxilliped sexually dimorphic, palp article 4 triangular, medial margin not concave, distal setae long, about 2 x article 4 length. <b>Pereon.</b> <i>Coxae 1–4</i> with posterior process weakly produced. <i>Gnathopod 1</i> palm acute, dactylus long, well surpassing palm. <i>Gnathopod 2</i> enlarged, basis anterodistal margin expanded, finely crenulate; palm with a shallow concavity, followed by two small humps near dactylus ring; dactylus fitting palm, inner margin with large hump. <i>Pereopods 3–4</i> propodus with a medial and 2 subdistal setae. <i>Pereopod 5</i> merus slightly lobate, about 1.3 x wider than long. <b>Pleon.</b> <i>Uropod 1</i> with well developed distal robust seta, ramus with 1 <i>–</i> 2 robust setae. <i>Uropod 2</i> outer ramus slightly shorter than inner ramus, each ramus with 1 robust seta. <i>Uropod 3</i> ramus about half the peduncle, tipped with 4 distal robust setae. <i>Telson</i> deeply cleft, lacking seta, lobes not pointed distally. <b>Female</b> (sexually dimorphic characters). Based on paratype, female, 3.1 mm, AM P80166. <i>Gnathopods 1–2</i> similar in shape and subequal in size; propodus not enlarged, about 2 x longer than wide, dactylus fitting palm. <i>Maxilliped</i> palp article 4 triangular, distal seta short, about 2/3 of article 4 length. <i>Oostegites</i> 2 triangular with 33 setae, oostegites 3–4 oval with distal end slightly curved with 39 and 46 setae respectively, oostegite 5 curved, thinner than the others and with 29 setae. <b>Habitat</b>. At Lizard Island this species was found on algal mat and fine sediment from rubble bottom on reef flat and on <i>Codium</i> sp. (green algae). <b>Remarks.</b> There are three known species of <i>Lelehua</i>, <i>L. waimea</i> (J.L. Barnard, 1970), <i>L. kandari</i> (J.L. Barnard, 1974) and <i>L. malevua</i> Myers, 1985. <i>Lelehua myersi</i> <b>sp. nov.</b> differs from the other three species in the shape of palm of gnathopod 2, size of the whip-like seta of male maxilliped palp article 4, telson lobes distally subacute as stated in Table 1. Both <i>L. myersi</i> and <i>L. kandari</i> are found in Australia, but the former seems to be more closely related to <i>L. malevua</i> as both are from the tropical Pacific province. Besides the characters cited in Table 1, these species also have in common the gnathopod 1 dactylus well surpassing palm and basis of male gnathopod 2 crenulated. <b>Distribution</b>. <i>Australia</i>. North-eastern Queensland (current study).
description: Published as part of <i>Serejo, Cristiana S. &amp; Sittrop, Daniela J., 2009, Hyalidae *, pp. 440-452 in Zootaxa 2260 (1)</i> on pages 444-447, DOI: 10.11646/zootaxa.2260.1.24, http://zenodo.org/record/5323848
description: {"references": ["Barnard, J. L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology, 34, 1 - 286.", "Barnard, J. L. (1974) Gammaridean Amphipoda of Australia, Part II. Smithsonian Contributions to Zoology, 139, 1 - 148.", "Myers, A. A. (1985) Shallow-water, coral reef and mangrove Amphipoda (Gammaridea) of Fiji. Records of the Australian Museum, Supplement 5, 1 - 143."]}