Palaemonella dijonesae Bruce 2010, sp. nov.

• Main Author: Bruce, A. J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Palaemonidae; Palaemonella; Palaemonella dijonesae; Enderby Island
• Online Access: https://zenodo.org/record/5316392; https://doi.org/10.5281/zenodo.5316392

Palaemonella dijonesae sp. nov. (Fig. 1) Palaemonella spinulata. — Bruce, 2008a: 107–108, figs 2–3. Material examined. Holotype, ov. female WAM C29308, Rocky Head, Enderby Island, Dampier Archipelago, stn DA2/99/73, 20°40’14”S, 116°27’96”E, 12.5 m, 24 July 1999; paratype male, WAM C28094, Nelson Rocks, Dampier Archipelago, stn DA3/99/68, 20°27.998’S, 116°39.707E, 6.3 m, 7 July 1999. Diagnosis. Rostrum as long (female) or longer (male) than CL, dentition 1+7/2, carapace without postorbital ridge, supraorbital spines present, well developed, antennal spine only slightly exceeding inferior orbital angle, mandibular palp 2-segmented, distal segment twice length of proximal segment, second pereiopods without distoventral ischial spine, ambulatory dactyli not elongate. Description. The major features of a male of P. dijonesae have been described and illustrated by Bruce (2008a, Figs 2–3 as P. spinulata). These can be augmented by further description of the female holotype specimen. Rostrum (Fig. 1B) subequal to CL, straight, horizontal, dorsal carina well developed, with 6 acute teeth and minute preterminal tooth (Fig. 1C), first tooth well in advance of posterior orbital margin, teeth with 3–4 plumose interdental setae, ventral carina well developed distally with 2 well developed acute teeth distal to fourth dorsal tooth, ventral margin with submarginal plumose setae distally, longer median setae proximally. Carapace (Fig. 1A) with epigastric tooth at 0.72 of CL, supraorbital spine well developed, without supraorbital or postorbital ridges, inferior orbital angle feebly produced, antennal spine well developed, marginal, extending slightly beyond inferior orbital angle, hepatic spine well developed, at slightly lower level than antennal spine, below supraorbital spine. Third maxilliped with 7 distolateral meral spinules, terminal segment with strong distal spine. First pereiopod chela (Fig. 1D) with fingers slightly longer than palm length, slender, dactylus about 6.5 times longer than proximal depth, with small ...