Dilocarcinus montinavis Felix Caetano França & Magalhães & Mantelatto 2024, sp. n.

3.3. 3. Dilocarcinus montinavis sp. n. Figures 1 C, 2 (L 3), 7 Dilocarcinus septemdentatus — Magalhães and Türkay 2008: 187 [part, only USU 510, 514, INPA 584]. Diagnosis. G 1 with distal portion distinctly sinuous, strongly curved laterally; subdistal lobe (“ sl ” in Figs 1, 7) well developed, rounded, bearing dense field of short spines; apex (form a in Figs 1, 7) directed apically, very short, less than 1 / 3 length of subdistal lobe. Description of the holotype. Carapace (Fig. 7 A) smooth, distinctly convex longitudinally, slightly curved transversally; post-frontal lobes as very low protuberances, barely distinguishable; carapacial regions ill discernible; H-shaped central groove (delimited by the posterior and lateral borders of the gastric and lateral borders of the cardiac regions) very shallow; meso, urogastric and branchial regions not elevated compared to other regions; post-gastric pits present, very faint. Frontal margin (Fig. 7 A, C, D) smooth, unarmed, distinctly bilobed, slightly directed downwards, fringed by minute papillae only seen under magnification. Exorbital tooth with sharp tooth; anterolateral borders bearing 6 regularly spaced acute teeth, posterolateral borders unarmed, marked by conspicuous ridge. Suborbital borders (Fig. 7 C, D) with 8 slender spines increasing size towards inner corner, one at inner corner distinctly curved, largest and strongest. Eyes (Fig. 7 C) well developed. Anterolateral corner of the buccal cavity (Fig. 7 C, D) bearing 4 strong sharp spines. Suborbital region (Fig. 7 C, D) somewhat pilose, pilosity denser towards inner side. Epistome (Fig. 7 C) barely visible in dorsal view, its median portion smooth, glabrous; opening of efferent channels wide, upper arch distinctly curved, mid-gutter with 2 distinct points separated by narrow concavity. Grooves dividing subhepatic and pterygostomial regions (Fig. 7 D) somewhat deep, distinctly pilose. Pterygostomial regions with scattered hairs, smooth and glabrous towards buccal frame. Third maxilliped (Fig. 7 D) with ...