Acidostoma merimbula Stoddart & Lowry 2012, sp. nov.

Acidostoma merimbula sp. nov.

(Figs 9–10)

Type material. HOLOTYPE, female, ovigerous, (at least 8 eggs), 10 mm, AM P.46666, east of Merimbula, New South Wales, Australia, 36°57.95'S 150°22'E to 36°58.41'S 150°22.14'E, 960–1050 m, thick grey mud with lumps of hard clay, dredged, 12 December 1986, R. T. Springthorpe, RV Franklin, stn FR1086-07.

Diagnostic description. Mandible molar a small, non-setose triangular flap. Maxilla 1 palp small , 1- articulate, with apical robust setae. Maxilliped inner plate well developed; outer plate with subapical notch. Gnathopod 2 dactylus reaching corner of palm. Pereopods 5 and 6 merus longer than broad . Epimeron 3 posteroventral corner produced, rounded . Uropod 1 peduncle dorsolateral margin with less than 10 robust setae. Uropod 2 peduncle dorsolateral margin not castellate, without setae. Uropod 3 reaching to about the end of uropod 2; rami longer than peduncle, without plumose setae; outer ramus article 2 small. Telson about as long as broad, moderately cleft (about 60%).

Etymology. Named for the New South Wales town of Merimbula, near the type locality.

Remarks. Acidostoma merimbula differs from A. australis as follows: maxilla 1 outer plate with 12 setalteeth; maxillipedal palp more setose; gnathopod 1 palm with more robust setae; pereopod 4 more setose; pereopod 6 coxa with better developed posteroventral lobe, merus with less pronounced posteroproximal corner; uropod 1 peduncle with long dorsomedial robust setae; telson moderately cleft.

Distribution. Off the coast of New South Wales, Australia; 960–1050 m depth.