taxonID	type	description	language	source
D3A7991CF3A15C8881E6977897B62DF1.taxon	type_taxon	Type species. Patithelphusa yercaudensis sp. nov., by present designation.	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
D3A7991CF3A15C8881E6977897B62DF1.taxon	diagnosis	Diagnosis. Carapace distinctly broader than long, dorsal surface distinctly convex, lateral margins with many short oblique striae (Fig. 2 A); dorsal surface distinctly convex in frontal view (Fig. 2 B); external orbital angle widely triangular, blunt, outer margin serrated, 4.5 times of inner margin (Fig. 2 A); epibranchial tooth short, distinct notch between epibranchial tooth and outer margin of external orbital tooth; cervical groove well demarcated in all course, broad and shallow anteriorly, relatively deep and narrow posteriorly, not reaching to the postorbital cristae; epistomal median lobe with distinct triangular tooth, tip bilobed; third maxilliped exopods with long flagellum (Fig. 2 D); suture between S 2 / S 3 shallow and broad, not reaching to lateral margins of sternum; suture between S 3 / S 4 shallow and broad, not interrupted by any ridge, reaching to lateral edge of sternum. Sixth pleonal segment of male slightly broader than long (Fig. 2 C, E, F); G 1 subterminal segment relatively slender, basally broad; terminal segment cone shaped, elongated, 0.4 times of subterminal segment, inner margin straight, outer margin convex in middle, with some long setae, tip triangular, not sharp. G 2 c. 1.2 times longer than G 1, subterminal segment long, basally broad, terminal segment slightly shorter than half of subterminal segment (Fig. 3 A – C).	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
D3A7991CF3A15C8881E6977897B62DF1.taxon	etymology	Etymology. The genus is named after eminent crustacean taxonomist, Dr Sameer Kumar Pati, for his valuable contribution to freshwater crab taxonomy in India. The gender is neuter.	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
ABF1BF47A22551339E572FEBCC6D0FAB.taxon	description	Figs 2, 4	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
ABF1BF47A22551339E572FEBCC6D0FAB.taxon	etymology	Etymology. This species is named after its type locality, Yercaud, a town and hill station in Salem District in Tamil Nadu, India. Located in the Shevaroy Hills in the Eastern Ghats, it is situated at an altitude of 1515 m. Used as a noun in apposition. Suggested common name: Yercaud crab.	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
ABF1BF47A22551339E572FEBCC6D0FAB.taxon	distribution	Distribution. The species is known only from the type locality, Yercaud (Fig. 1) of the District Salem, Tamil Nadu, India.	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
ABF1BF47A22551339E572FEBCC6D0FAB.taxon	diagnosis	Diagnosis. See genus Diagnosis.	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
ABF1BF47A22551339E572FEBCC6D0FAB.taxon	description	Description. Carapace distinctly broader than long (cw / cl = 1.4), deep (ch / cl = 0.6), dorsal surface gently convex in frontal view; epigastric cristae low, rugose, slightly anterior to postorbital cristae, postorbital cristae sharp extended up to epibranchial tooth; external orbital angle widely triangular, blunt, outer margin serrated, 4.5 times of inner margin; supraorbital margin sinuate, granulated (Fig. 2 A), no notch between infraorbital margin and external orbital tooth (Fig. 2 B); epibranchial tooth short, distinct notch between epibranchial tooth and outer margin of external orbital tooth; anterolateral margin distinctly convex, cristate, shorter than posterolateral margins, anterolateral region distinctly convex with some oblique striae, posterolateral margin gently concave. Cervical groove well demarcated along its course, broad and shallow anteriorly, relatively deep and narrow posteriorly, not reaching to the postorbital cristae; mesogastric groove shallow, I-shaped; H-shaped groove distinct (Fig. 2 A); sub-hepatic region rugose with some short striae, suborbital and pterygostomial region smooth. Front relatively narrow (fw / cw = 0.3), orbit bluntly triangular, eyes occupy most of the orbital space, eye stalk massive, cornea large, frontal median triangle complete, very short; epistomal median lobe with a distinct triangular tooth, tip bilobed; antennae short, just reaching to the base of eyestalk; antennular fossae horizontally broad (Fig. 2 B). Third maxilliped ischium almost quadrangular, 1.6 times longer than broad, longitudinal median groove shallow, merus pentagonal, mesial margin straight; exopods longer than ischium, reaching third of merus, with long flagellum wider than merus (Fig. 2 D). Suture between S 1 / S 2 not visible, suture between S 2 / S 3 as shallow broad groove not reaching to lateral margins of sternum; suture between S 3 / S 4 shallow broad not interrupted by any ridge, reaching to lateral edge of sternum (Fig. 2 C, F). Sternopleonal cavity reaching median part of the cheliped coxae, male pleon T-shaped, somite six squarish, proximal width slightly longer than median length, lateral margin gently concave; telson as long as broad, distinctly shorter than somite six, free end almost truncated to rounded (Fig. 2 E). Cheliped sub-equal, left cheliped slightly larger than right, major cheliped longer than P 3, hands of major cheliped stout, cutting edge of fixed finger with large submedian teeth, along with 2 – 3 subteeth; cutting edge of movable finger with several small and 3 – 4 large triangular teeth, tips of both fingers pointed and curved; (Fig. 2 G); ambulatory legs stout, merus of P 3 shorter than carapace length. G 1 subterminal segment relatively slender, basally broad, terminal segment cone shaped, elongated, 0.4 times of subterminal segment, inner margin straight, outer margin convex in middle, with some long setae; tip triangular, not sharp (Fig. 3 A, B). The G 2 c. 1.2 times longer than G 1, subterminal segment long, basally broad, terminal segment slightly shorter than half of the subterminal segment (Fig. 3 C).	en	Mitra, Santanu, Rath, Shibananda, Jung, Won-Kyo, Kim, Hyun-Woo, Kundu, Shantanu (2025): Scuttling in the highlands: Discovery of a new genus and species of freshwater crabs (Decapoda, Gecarcinucidae) from the Eastern Ghats, India. ZooKeys 1257: 71-90, DOI: 10.3897/zookeys.1257.156494
