Gippsia jonesae Lowry &amp; Stoddart 1995, n.sp.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 1995
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Uristidae
Gippsia
Gippsia jonesae

description: <i>Gippsia jonesae</i> n.sp. Figs 10, 11 Type material. HOLOTYPE, female, 3.0 mm (ovigerous, 1 egg), NMV J22344 and PARATYPE, female, NMV 122345: 15.3 km east-south-east of eastern edge of Lake Tyers, Victoria, Australia, 37°53.39'S 148°15.40'E, Smith-McIntyre grab, coarse sand, 43 m, N. Coleman, 4 June 1991, stn MSL-EG 70. PARATYPE, male, 2.0 mm, NMV 122346, 15.5 km southeast of Point Ricardo, Victoria, Australia, 37"53.14'S 148°28.94'E, Smith-McIntyre grab, medium sand, 45 m, N. Coleman, 4 June 1991, stn MSL-EG 81. PARATYPE, NMV J26744, 7.3 km south-south-west of Cape Conran, Eastern Bass Strait, Victoria, Australia, 37°52.65'S 148°42.15'E, Smith-McIntyre grab, coarse sand, 49 m, N. Coleman, February 1991, stn MSL-EG 117. PARATYPES, 1 female, 3.0 mm, 1 male, AM P42289, 15.3 km east-south-east of eastern edge of Lake Tyler, Eastern Bass Strait, Victoria, Australia, 37°53.39'S 148°15.40'E, Smith-McIntyre grab, coarse sand, 43 m, N. Coleman, February 1991, stn MSL-EG 97. PARATYPE, NMV J26747, 15.3 km east-south-east of eastern edge of Lake Tyler, Eastern Bass Strait, Victoria, Australia, 37°53.39'S 148°15.40'E, Smith-McIntyre grab, coarse sand, 43 m, N. Coleman, February 1991, stn MSL-EG 98. Description. Holotype female, 3.0 mm, paratype male, 2.0 mm. <i>Head and body:</i> without setae. <i>Head:</i> deeper than long, lateral cephalic lobe large, broad, subacute; rostrum absent; eyes indistinct, irregularly reniform, colour unknown, not enlarged in adult male. <i>Antenna 1:</i> medium length; peduncular article 1 short, length 1.1 x breadth; peduncular article 2 short, 0.34 x article 1; peduncular article 3 short, 0.05 x article 1; accessory flagellum long, 0.51 x primary flagellum, 3-articulate, article 1 long, 1.2 x article 2 (male long, 2.1 x article 2), not forming cap; flagellum 7-articulate (male 6), with strong I-field callynophore in female (strong 2-field callynophore in male), without flagellar robust setae, calceoli absent in female and male. <i>Antenna</i> 2: subequal in length to antenna 1 in female and male; peduncle without brush setae in female and male, weakly geniculate between peduncular articles 3-4, article 3 short, 0.48 x article 4 (male weakly geniculate between peduncular articles 3--4, article 3 short, 0.25 x article 4), peduncular articles 4 and 5 not enlarged in female or male; flagellum 6-articulate (male 5), calceoli absent in female and male. <i>Mouthpart bundle:</i> subquadrate. <i>Epistome</i> and <i>upper lip:</i> fused, bilobate. <i>Mandible:</i> incisors symmetrical, large, with slightly convex margins; lacinia mobilis a cuspidate peg; accessory setal row, left row with 3, right row with 4 short, slender, serrate setae; intermediate setae absent; molar setose with rudimentary distal triturating surface; mandibular palp attached distally; article.1 short, length 1 x breadth; article 2 slender, length 4.3 x breadth, 1.6 x article 3, with 3 distal A2- setae (male 3), without D2-setae; article 3 slender, bladelike, long, length 3.1 x breadth, without A3-setae, with 1 distal D3-seta (male 1) and 3 apical E3-setae. <i>Maxilla 1:</i> inner plate narrow, with 2 pappose setae; outer plate extremely narrow with 11 setal-teeth in 7/4 crown arrangement, STl to ST3 large, slender, multicuspidate, ST4 large, slender, 8-cuspidate, ST5 large, slender, 9- cuspidate, ST6 large, slender, 14-cuspidate, ST7 displaced down medial face, large, slender, 27-cuspidate medially, STA large, slender, displaced from STB, multicuspidate, STB long, slender, 7-cuspidate, STC long, slender, 6-cuspidate, STD long, slender, 6-cuspidate; palp large, 2-articulate, with 3 short terminal conate setae, with 1 subterminal seta, robust flag seta present on distolateral corner, distomedial margin serrate. <i>Maxilla</i> 2: inner plate narrow, outer plate broader, inner plate length 1.3 x outer plate, outer plate with extremely elongate slender setae. <i>Maxilliped:</i> inner plate large, subrectangular, with 2 apical nodular setae, oblique setal row strong with 5 pappose setae; outer plate medium size, subovate, without apical slender setae, with 1 apical robust seta, medial setae small, blunt, submarginal setae long, simple; palp large, 4-articulate, article 2 very broad, length 1.8 x breadth, 1.2 x article 3, article 3 long, broad, length 2.2 x breadth, dactylus well-developed, with 2 subterminal setae, unguis present. <i>Gnathopod</i> 1: simple; coxa large, about as long as coxa 2, anterior margin slightly concave, anteroventral corner rounded, posterior margin straight; basis long, slender, length 2.9 x breadth, anterior margin smooth, with simple setae; ischium short, length 1.4 x breadth; merus, posterior margin with patch of short setae; carpus subrectangular, short, length 1.9 x breadth, longer than (1.1 x) propodus, with patch of very fine setae near posterior margin; propodus large, subrectangular, length 2.1 x breadth, margins slightly converging distally, posterior margin smooth, straight, with 1 simple robust seta; dactylus simple, with subterminal spine. <i>Gnathopod</i> 2: minutely subchelate; coxa large, subequal in size to coxa 3; ischium long, length 3 x breadth; carpus long, length 2.8 x breadth, posterior margin straight; propodus subquadrate, short, length 1.5 x breadth, palm transverse, with straight, serrate margin, posterodistal corner with 1 (male 1) medial robust seta; dactylus reaching corner of palm, posterior margin smooth proximally with serrate tip. <i>Peraeopod</i> 3: coxa large; merus weakly expanded anteriorly; merus-carpus without plumose setae in male and female; propodus with 2 slender setae along posterior margin, with 1 distal locking seta; dactylus short, slender. <i>Peraeopod</i> 4: coxa deeper than wide, with large posteroventral lobe, anterior margin slightly rounded, posterior margin slightly sloping anteriorly; merus weakly expanded anteriorly; merus-carpus without plumose setae in male and female; propodus with 2 slender setae along posterior margin, with 1 distal locking seta; dactylus short, slender. <i>Peraeopod</i> 5: coxa equilobate; basis expanded with posterior margin minutely crenate; merus expanded with rounded posterior margin; propodus with finely setose anterior margin, with 2 robust setae along anterior margin, with 2 distal locking setae; dactylus short, slender. <i>Peraeopod</i> 6: coxa small, slightly lobate posteriorly; basis expanded posteriorly with minutely crenate posterior margin; merus not expanded posteriorly; propodus with finely setose anterior margin, with 2 robust setae along anterior margin, with 2 distal locking setae; dactylus short, slender. <i>Peraeopod</i> 7: basis expanded posteriorly, posterior margin slightly rounded, crenate, posteroventral corner rounded, posteroventral margin rounded; merus not expanded posteriorly, with 2 robust setae; propodus with finely setose anterior margin, with 2 robust setae along anterior margin, 2 distal locking setae, without setae along posterior margin; dactylus short, slender. <i>Oostegites:</i> from gnathopod 2 to peraeopod 5. <i>Gills:</i> from gnathopod 2 to peraeopod 6, not pleated. <i>Pleonites</i> 1 <i>to</i> 3 dorsally smooth. <i>Epimeron</i> 1: anteroventral corner rounded. <i>Epimeron</i> 3: posteroventral corner produced, with minute bicuspidate notch. <i>Urosomites:</i> dorsally smooth; urosomite 3 with small dorsolateral seta. <i>Uropod</i> 1: without fine setae; peduncle with 1 dorsolateral, 1 apicolateral, 3 dorsomedial and 1 apicomedial robust setae; rami subequal in length; outer ramus with 2 dorsal robust setae, inner ramus with 2 dorsal robust setae. <i>Uropod</i> 2: without fine setae; peduncle with 1 apicolateral and 1 apicomedial robust setae; rami subequal in length; outer ramus with 1 dorsal robust seta, inner ramus with 2 dorsal robust setae; inner ramus without constriction. <i>Uropod</i> 3: peduncle short, length 1.4 x breadth, without dorsolateral flange, with 1 apicomedial robust seta, without midlateral slender or robust setae, with 1 distoventral robust seta, without plumose setae in female or male; rami lanceolate, inner ramus shorter than (0.79x) outer ramus; outer ramus 2-articulate, article 2 long, article 1 with 1 lateral robust seta; inner ramus without robust setae; slender plumose setae absent in female and male. <i>Telson:</i> shorter than broad, length 0.75 x breadth, entire, without dorsal robust setae, without dorsal slender setae, distal margin rounded, with 2 marginal penicillate setae, without marginal simple setae, with 2 marginal robust setae. <b>Etymology.</b> Named for Diana Jones, carcinologist at the Western Australian Museum, for her contribution to the systematics of Australian crabs and barnacles. <b>Remarks.</b> For reasons put forward in the remarks under <i>Galathella</i> it is highly probable that <i>Gippsia jonesae</i> is a demersal scavenger and/or micropredator. <b>Distribution.</b> <i>Gippsia jonesae</i> is known from off the central Victorian coast, Australia, in 40 to 50 m depth. ACKNOWLEDGMENTS. We are particularly grateful to Gary Poore, who supplied the material for this study; to Stephen Keable, who made all of the illustrations; and to Roger Springthorpe, who composed and inked the plates. Financial support for the project was provided by the Australian Research Council.
description: Published as part of <i>Lowry, J. K. &amp; Stoddart, H. E., 1995, New lysianassoid genera and species from south-eastern Australia (Crustacea: Amphipoda), pp. 7-25 in Records of the Australian Museum 47 (1)</i> on pages 21-24, DOI: 10.3853/j.0067-1975.47.1995.5, http://zenodo.org/record/4654764