taxonID	type	description	language	source
03A212449A6E324EFF42F38BFCE8EEFD.taxon	description	(Figs. 2, 3, 7 A, 10 A) urn: lsid: zoobank. org: act: 359 A 7 FDC- 55 A 8 - 4 A 7 B- 868 B- 00 FD 88 F 15 EE 7	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6E324EFF42F38BFCE8EEFD.taxon	materials_examined	Material examined. Holotype: male (12.2 × 10.1) (MNHN-IU- 2012 - 660), Mozambique Channel, Europa Island, coll. Poupin J., Gravier-Bonnet N., Zubia M., Tisné N., 11. Nov. 2011 (Biodiversité, Ressources et Conservation des Récifs Coralliens des Îles Éparses (BIORECIFE) program, station 14) (see Poupin et al. 2012).	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6E324EFF42F38BFCE8EEFD.taxon	diagnosis	Diagnosis. Carapace slightly broader than long, front deflexed, slightly sinuous in dorsal view, median postfrontal lobes slightly wider than lateral ones, carapace lateral margin almost straight; eye with eyestalk short, stout, wider than long, corneal part slightly wider; male chela large and robust, upper surface of palm with one oblique pectinated crest, dorsal surface of dactylus bearing 12 low, transversely oval, asymmetric tubercles, with longer distal slope, proximal tubercles positioned at middle part of upper face of palm; ambulatory legs flattened dorsoventrally, long, third pair (P 4) longest, total length (ischium-dactylus) ca. 2.0 times carapace width; Male pleon triangular, somite 2 medially longer than lateral edges; G 1 long, straight, apical corneous process long, tip rounded, bent at angle of about 50 ° to vertical axis, aperture subterminal.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6E324EFF42F38BFCE8EEFD.taxon	description	Description. Carapace subrectangular to slightly trapezoidal, slightly broader than long (cw / cl = 1.21), greatest width between exorbital angles; carapace surface smooth; front ca. 0.62 times carapace width, markedly deflexed, slightly sinuous in dorsal view; post-frontal lobes prominent, median lobes slightly wider than lateral ones, separated by shallow furrow; dorsal carapace regions well indicated, gastric region demarcated, cardiac region separated from intestinal region, lateral branchial ridges prominent; anterolateral margin with sharp exorbital angle, lateral margin almost straight, edged with row of short setae. Eye with eyestalk short, stout, wider than long, corneal part slightly wider (Figs. 2 A, 3 A). Male chela large (palm length / cw = 0.54) (Fig. 2 B), robust (palm width / length = 0.48) (Fig. 3 B); merus with granulate dorsal border, no distinct subdistal spine, ventral border granulate, anterior border granulate, with distinct subdistal spine, accompanied by several spines distally, inner face smooth with longitudinal row of setae, anterior face smooth, outer face with rows of fine granules; upper surface of palm with 1 oblique pectinated crest and two rows of fine granules proximal to the crest, that is composed of 17 well developed teeth, and terminates at inner end in two granules and several granules on outer side (Fig. 3 C, D); outer surface of palm with short rows of fine granules except for smooth, punctate fixed finger; inner surface of palm finely granular except area facing carpus and distal half of finger; no vertical ridge; both sides of palm with scattered tufts of setae; dactylus slightly curved downward and inward, dorsal surface bearing 12 low but distinct, transversely oval tubercles, distinct to tip, tubercles asymmetric, with distal slope longer, proximal tubercles positioned at middle part of upper face of palm; small pointed granules on inner side (Fig. 3 C, D); scattered tufts of setae on inner side, cutting edge of both fingers with a series of variably sized teeth (Fig. 3 B). Ambulatory legs flattened dorso-ventrally, relatively long, third pair (P 4) longest (Fig. 2), total length (ischiumdactylus) ca. 2.0 times carapace width, cluster of setae on coxae of P 3, P 4, tufts of long setae scattered along the legs, more on propodi and dactyli, merus of P 4 ca. 2.37 times as long as wide, with anterior margin crenulated, propodus ca. 3.5 times as long as wide, dactylus ca. 0.67 times length of propodus. Male pleon triangular (Figs. 2 B, 3 E), with rounded telson, slightly wider than long (basal width / length = 1.1), almost as long as somite 6; somite 6 longer than others; somites 4 and 5 trapezoidal, somite 3 widest, laterally convex, somite 2 medially longer than lateral edges (Fig. 3 F). G 1 relatively long, straight; apical corneous process long, tip rounded, bent at angle of about 50 ° to vertical axis, arched in cross section, aperture subterminal (Fig. 3 G – J). Female. No female specimen was examined. Color. The specimen preserved in ethanol does not show any coloration, but according to Poupin et al. (2012: Fig. 9 B, p. 22), the carapace seems brownish, ambulatory legs with scattered black stains dorsally and chelae with orange tip. Habitat and distribution. The only specimen known for this species was collected from Europa Island, Grand Lagoon with mangroves and dead coral blocks (Poupin et al. 2012: st. 14 in Fig 1).	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6E324EFF42F38BFCE8EEFD.taxon	etymology	Etymology. The name is derived from the Latin verb “ dispergere ” (dispersed or scattered) and refer to its isolated position. It furthermore is a direct translation of the French name for the archipelago where it occurs: Îles Éparses.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6E324EFF42F38BFCE8EEFD.taxon	discussion	Remarks. The specimen resembles L. lenzii in the morphology of chelar dactylar tubercles and G 1 (Fig. 10 A, B) and was first identified as such by Poupin et al. (2012). However, the specimen differ from L. lenzii in some morphological aspects. Most conspicuous is that the new species has proportionally longer ambulatory legs compared to L. lenzii, e. g. P 4 (ischium-dactylus) / cw ca. 2.0 in the new species, while it is ca. 1.8 in L. lenzii; merus length / width ca. 2.3 in the new species, while this is ca. 2.1 in L. lenzii; propodus length / width ca. 3.5 in the new species, while it is ca. 2.9 in L. lenzii (Fig. 7 A, B). The new species differs slightly from L. lenzii in G 1 morphology by having an apical corneous process with wider tip (Fig. 10 A, B). The new species differs from the East African L. gazi in several morphological aspects as well as length of the ambulatory legs (Fig. 7 A, C) and G 1 morphology. P 4 (ischium-dactylus) / cw ca. 2.0 in the new species, while it is ca. 1.9 in L. gazi. The G 1 in L. gazi is curved with a long apical corneous process, bent at an angle of about 10 ° with vertical axis, while the G 1 in the new species is straight, with wider apical corneous process, bent at an angle of about 50 ° with vertical axis (Fig. 10 A, C). Leptarma leptosoma is the more common East African congener in the area. This species is also different from the new species in many features. For example the new species has a wider carapace (cw / cl ca. 1.2) and a G 1 with long apical corneous process, while L. leptosoma has a more squarish carapace (cw / cl less than 1.1) (Fig. 7 A, D) and a G 1 with short apical corneous process (Fig. 10 A, D).	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	description	(Figs. 4 – 6, 7 E, 8 A, 9 A, 10 E) urn: lsid: zoobank. org: act: 3 D 7768 AE-CE 36 - 478 D-AF 43 - BE 0 A 64442822	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	materials_examined	Material examined. Holotype: male (11.8 × 9.92) (UF 12356), Réunion. Paratype: 1 male (11.6 × 9.8) (UF 12354), Réunion Island.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	diagnosis	Diagnosis. Carapace subrectangular, slightly broader than long, front deflexed, almost straight in dorsal view, median post-frontal lobes wider than lateral ones, lateral carapace margin slightly concave. Eye with short and stout eyestalk, wider than long, corneal part slightly wider. Male chela large, robust, upper surface of palm with two oblique pectinated crests, dorsal surface of dactylus bearing 9 or 10 low, rounded, asymmetric tubercles, with longer distal slope, proximal ones positioned at middle of dorsal face of dactylus with oblique keel. Ambulatory legs relatively long, third pair longest, total length (basis-dactylus) ca. 1.8 times carapace width; male pleon triangular, somite 2 medially longer than lateral edges. G 1 stout, straight; apical corneous process long, tip truncate, bent at an angle of about 65 ° to vertical axis, aperture terminal.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	description	Description. Carapace subrectangular, slightly broader than long (cw / cl = 1.17), greatest width between exorbital angles; carapace surface smooth; front ca. 0.55 times carapace width, deflexed, almost straight in dorsal view; post-frontal lobes prominent, median lobes wider than lateral ones, separated by deep furrow; dorsal carapace regions well indicated, gastric region demarcated, cardiac region separated from intestinal region, lateral branchial ridges prominent; upper orbital border smooth, lower orbital border finely granulate; anterolateral margin with sharp exorbital angle, lateral margin slightly concave, edged with row of short setae. Eye with eyestalk short, stout, wider than long, corneal part slightly wider (Figs. 4 A, 5 A, 6 A). Male chela large (palm length / cw ca. 0.68) (Figs. 4 B, 5 A), robust (palm width / length ca. 0.61) (Figs. 4 B, 5 C); merus with granulate dorsal border, no distinct subdistal spine, ventral border granulate, anterior border granulate, with distinct subdistal spine, accompanied by several spines distally, inner face smooth with longitudinal row of setae, anterior face smooth, outer face with rows of fine granules; upper surface of palm with 2 oblique pectinated crests, distal (primary) crest composed of 13 - 16 teeth; secondary crest well developed, with 6 - 8 teeth, both crests terminating at inner end in 1 - 2 granule (s) and several granules on outer side (Fig. 5 E); outer surface of palm with fine granules (rows of fine granules on the proximal half) except for smooth, punctate fixed finger (Fig. 5 C); inner surface of palm granular except area facing carpus and distal half of finger; no vertical ridge, dactylus slightly curved downward and inward, dorsal surface bearing 9 or 10 low but distinct, rounded tubercles, distinct to tip, tubercles asymmetric with distal slope longer distal slope, proximal ones positioned at middle of dorsal face of dactylus with oblique keel; small pointed granules on inner side, cutting edge of both fingers with a series of variably sized teeth (Fig. 5 C – F). Ambulatory legs flattened dorso-ventrally, relatively long, third pair longest, total length (basis-dactylus) ca. 1.8 times carapace width, tufts of long setae scattered along prpodi and dactyli, merus with anterior margin crenulated, ca. 2.26 times as long as wide, propodus ca. 2.8 times as long as wide, dactylus ca. 0.8 times length of propodus (Figs. 4 A, 6 A). Male pleon triangular (Figs. 4 B, 5 G), with telson almost as long as basal width, as long as somite 6; somite 6 longer than others; somites 4 and 5 trapezoidal, somite 3 widest, laterally convex, somite 2 medially longer than lateral edges (Fig. 5 H). G 1 stout, rather long, straight; apical corneous process long, tip truncate, bent at angle of about 65 ° to vertical axis, arched in cross section, aperture terminal (Figs. 5 B, 6 B – E). Female. No female specimen was examined. Color. The specimens preserved in ethanol do not show any coloration. According to the photo in Poupin (2009, p. 36), the carapace and pereiopods are light brown with black clouds, chela brighter, fingers yellow. Habitat and distribution. No information to be found on label. According to Poupin (2009: 35) the crab lives in mangrove and muddy swamps of estuaries.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	etymology	Etymology. The name is derived from the region of occurrence (type locality) of the species, Réunion Island.	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
03A212449A6B3246FF42F41BFD42EC75.taxon	discussion	Remarks. Among other Leptarma, the new species resembles most L. liho and L. jamelense, both from South East Asia, in general appearance (Fig. 7 E, F), chelar (Figs. 8 A – C, 9 A – C) and G 1 morphology (Fig. 10 E – G). The new species, however, has a wider carapace compared to the other two species, i. e. cw / cl ca. 1.2 in the new species vs. 1.1 in L. liho and L. jamelense. In dorsal view, the front is more sinuous in L. liho (Fig. 7 F) and L. jamelense compared to the almost straight front of the new species (Fig. 7 E). The new species also differs from the two other species in chelar dactylar tubercles (9 - 10 rounded tubercles in the new species (Fig. 9 A) vs. 12 - 14 oval tubercles in L. liho (Fig. 9 B) and L. jamelense (Fig. 9 C )). The new species also has G 1 s with slightly longer apical corneous processes, compared to the other two similar species (Fig. 10 E – G). The new species shows phylogenetic association (Fig. 1 A) and some morphological resemblance to the species pair L. moluccense and L. paucitorum. The new species, however, has a wider carapace compared to these two species (Fig. 7 G, H), i. e. cw / cl ca. 1.2 in the new species, while it is less than 1.1 in the other two species. They also differ in chelar dactylar tuberculation and G 1 morphology. The new species has more tubercles (9 - 10) than L. moluccense and L. paucitorum (6 - 8) (Figs. 8 D, E, 9 D, E) and G 1 s with longer apical corneous process (Fig. 10 H, I). Leptarma reunionense n. sp. also resembles L. aurifrons in general appearance as well as in chelar morphology. L. reunionense n. sp., however, differs from L. aurifrons in G 1 morphology, which has longer and more bent corneous process (see Li et al., 2019: Fig. 3 E, F).	en	Shahdadi, Adnan, Schubart, Christoph D. (2020): Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny. Zootaxa 4816 (4): 439-456, DOI: 10.11646/zootaxa.4816.4.2
