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235 results for “Potamoidea”
Figure 1. A in A new multilocus phylogeny reveals overlooked diversity in African freshwater crabs (Brachyura: Potamoidea): a major revision with new higher taxa and genera
Figure 1. A, maximum clade credibility tree of the Afrotropical freshwater crab fauna based on four DNA loci with support values (posterior probabilities and bootstrap values of the ML analyses) with a geological timescale below the tree topology. Posterior probabilities> 0.95 pP (*above branch) and bootstrap values> 75% (* below branch) were regarded as statistically supported and are shown on the tree topology. Clade A, Liberonautinae, clade B, Potamonautinae, clade B1, Maritimonautini, clade B2, Erimetopini, clade B3, Potamonautini. B, detail of the maximum clade credibility tree of the Afrotropical freshwater crab fauna showing Clade B3 Potamonautini with the species included in the five genera within the tribe: Arcopotamonautes (B3[1]), Lirrangopotamonautes (B3[2]), Platythelphusa (B3[3]), Potamonautes s.s. (B3[4]) and Rotundopotamonautes (B3[5]).
Figure 6 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 6. Map of Madagascar showing the distributional range of Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov. (black circles, not shown to scale), Toamasina clarki sp. nov. (white triangle in black square, not shown to scale), Foza raimundi Reed and Cumberlidge, 2006 (white asterisk with black margin), and Foza manonae Cumberlidge, Klaus, Meyer, and Koppin, 2015 (white square with black margin). Scale bar = 184 km.
Figure 3 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 3. Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov., paratype, adult ♀, CW 35.0 mm, FMNH 11046, from Analamerana Special Reserve, Madagascar, right ambulatory legs (a). Toamasina clarki sp. nov., holotype, adult ♂, CW 43.0 mm, NMU PN 17–21.3.2003, from Toamasina Province, Madagascar, right cheliped and ambulatory legs (b). Scale bar = 6.6 mm.
Figure 2 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 2. Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov., holotype, adult ♂, CW 39.5 mm, MNHN B 30154, from Diana Region, Madagascar: a, frontal view of mandible; c, superior view of mandible; e, outer view of left third maxilliped. Toamasina clarki sp. nov., holotype, adult ♂, CW 43.0 mm, NMU PN 17– 21.3.2003, from Toamasina Province, Madagascar: b, dorsal view of mandible; d, superior view of mandible; f, outer view of left third maxilliped. Scale bar: a–d = 1.0 mm; e, f = 2.2 mm. The anterior lobe of the palp has been shaded yellow (A-D) to distinguish it from the long setae that line the margins of this lobe.
Figure 4 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 4. Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov., holotype, adult ♂, CW 39.5 mm, MNHN B 30154, from Diana Region, Madagascar: a, frontal view of right chela; b, frontal view of left chela; e, inferior view of merus of right cheliped; f, dorsal view of carpus and merus of right cheliped. Toamasina clarki sp. nov., holotype, adult ♂, CW 43.0 mm, NMU PN 17–21.3.2003, from Toamasina Province, Madagascar: c, frontal view of right chela; d, frontal view of left chela; g, right cheliped carpus and merus dorsal view; h, inferior view of merus of right cheliped. Scale bar: a–d = 5.0 mm; e, f = 4.0 mm; g, h = 5.0 mm.
Figure 7 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 7. Foza raimundi Reed and Cumberlidge, 2006, adult ♂, CW 18.7 mm, FMNH 15336, from Marojejy National Park, Madagascar: a, dorsal view of cephalothorax; b, frontal view of cephalothorax; c, ventral view of cephalothorax; g, ventral view of left G1; h, dorsal view of left G1; i, ventral view of left G2. Foza manonae Cumberlidge, Klaus, Meyer, and Koppin, 2015, holotype, adult ♂, CW 43.07 mm, ZSM A20145003, from Ankarana Special Reserve, Madagascar: d, dorsal view of cephalothorax; e, frontal view of cephalothorax; f, ventral view of cephalothorax; j, ventral view of left G1; k, dorsal view of left G1; l, ventral view of left G2. Scale bar: a–c = 6.6 mm; d–f = 10.0 mm; g, h = 2.0 mm; i = 2.5 mm; j, k = 3.3 mm; l = 4.0 mm.
Figure 5 in Two new genera and a new species of freshwater crabs from northern Madagascar: Vahatra gen. nov. for Foza ambohitra Cumberlidge and Meyer, 2009, and Toamasina gen. nov. for Toamasina clarki sp. nov. (Brachyura: Potamoidea: Deckeniidae)
Figure 5. Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov., holotype, adult ♂, CW 39.5 mm, MNHN B 30154, from Diana Region, Madagascar. a, ventral view of left G1; b, dorsal view of left G1; and c, ventral view of left G2. Toamasina clarki sp. nov., holotype, adult ♂, CW 43.0 mm, NMU PN 17–21.3.2003, from Toamasina Province, Madagascar: d, ventral view of left G1; e, dorsal view of left G1; and f, ventral view of left G2. Scale bar: a, b = 5.0 mm; c = 2.9 mm; d, e = 2.5 mm; f = 2.9 mm.
FIGURE 6. Arcopotamonautes ngae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 6. Arcopotamonautes ngae n. sp., adult male holotype, CW 27.5 mm, Kwebuyu River, Tamota, Nguu Mountains, Tanzania (NMU 1966.08a): A, dorsal habitus; B, carapace dorsal view. Scale bar: A = 8.3 mm; B = 4.2 mm.
FIGURE 10. Arcopotamonautes ngae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 10. Arcopotamonautes ngae n. sp., adult male holotype, CW 27.5 mm, Kwebuyu River, Nguu Mountains, Tamota, Tanzania (NMU 1966.08a): A, left G1, superior view; B, left G2, ventral view; C, left G1, turned to show detail of dorsal membrane and terminal article (G1TA). Scale bar: A = 0.82; B = 1.3 mm; C = 0.9 mm.
FIGURE 5. Arcopotamonautes parekeeae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 5. Arcopotamonautes parekeeae n. sp., adult male holotype, CW 39.0 mm, Yongoma River, South Pare Mountains, Tanzania (NMU 1968.02a): A, left G2, ventral view; B, left G1, ventral view; C, left G1, ventral view, showing detail of terminal article (G1TA). Scale bar: A = 2.2 mm; B = 1.5; C = 0.6 mm.
FIGURE 9. Arcopotamonautes ngae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 9. Arcopotamonautes ngae n. sp., adult male holotype, CW 27.5 mm, Kwebuyu River, Tamota, Nguu Mountains, Tanzania (NMU 1966.08a): A, left G1, ventral view; B, left G1, dorsal view; C, left G1, turned to show detail of terminal article (G1TA). Scale bar: A, B = 1.3 mm; C = 1.1 mm.
FIGURE 1. Arcopotamonautes parekeeae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 1. Arcopotamonautes parekeeae n. sp., adult male holotype, CW 39.0 mm, Yongoma River, South Pare Mountains, Tanzania (NMU 1968.02a): A, dorsal habitus; B, carapace, dorsal view. Scale bar: A = 10.5 mm; B = 5.4 mm.
FIGURE 8. Arcopotamonautes ngae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 8. Arcopotamonautes ngae n. sp., adult male holotype, CW 27.5 mm, from Kwebuyu River, Tamota, Nguu Mountains, Tanzania (NMU 1966.08a): A, right chela, external view; B, left chela, external view; C, left cheliped, carpus, merus, ischium, dorsal view; D, left cheliped, merus, ischium, ventral view. Scale bar: A, B = 4.4 mm; C = 3.1 mm; D = 2.2 mm.
FIGURE 7. Arcopotamonautes ngae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 7. Arcopotamonautes ngae n. sp., adult male holotype, CW 27.5 mm, Kwebuyu River, Tamota, Nguu Mountains, Tanzania (NMU 1966.08a): A, carapace, frontal view; B, cephalothorax showing anterior thoracic sternum, ventral view; C, cephalothorax showing pleon and posterior thoracic sternum, posteroventral view; D, left mandible, external view; E, left mandible, turned to show mandibular palp with short hardened ridge along superior margin of terminal article, ridge originating at article junction; F, third maxilliped, external view. Scale bar: A = 3.7 mm; B, C = 6.7 mm; D, E = 13.0 mm; F = 2.5 mm.
FIGURE 4. Arcopotamonautes parekeeae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 4. Arcopotamonautes parekeeae n. sp., adult male holotype, CW 39.0 mm, Yongoma River, South Pare Mountains, Tanzania (NMU 1968.02a): A, left G1, dorsal view; B, left G1, dorsal view, detail of terminal article (G1TA); C, left G1, turned to show detail of dorsal membrane and terminal article (G1TA). Scale bar: A = 2.0 mm; B = 0.85 mm; C = 0.8 mm.
FIGURE 3. Arcopotamonautes parekeeae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 3. Arcopotamonautes parekeeae n. sp., adult male holotype, CW 39.0 mm, Yongoma River, South Pare Mountains, Tanzania (NMU 1968.02a): A, right chela, external view; B, left chela, external view; C, left cheliped merus, dorsal view; D, left cheliped merus, basis-ischium, ventral view; E, left cheliped carpus, dorsal view. Scale bar: A, B = 8.0 mm; C = 4.0 mm; D, E = 3.3 mm.
FIGURE 11 in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 11. Map showing the geographic distribution of Arcopotamonautes parekeeae n. sp. (black circles) and A. ngae n. sp. (black triangle). Scale bar = 100 km. See text for exact localities.
FIGURE 8 in Ngan mayla gen. et sp. nov, a new blind potamid cave crab from Borneo, Kalimantan (Crustacea: Decapoda: Brachyura: Potamoidea, Potamidae), and three other unidentified cave crabs from the same region
FIGURE 8. Gecarcinucid sp., juvenile female, 7.7 × 9.9 mm, Lubang Tebot Cave, Merabu Karst, East Kalimantan, Borneo, 1°34'58"N, 117°21'07"E, 360 m, 09 August 2010, MZB Cru 5712: A, habitus; B, frontal view; C, cheliped; D, ventral view; E, thoracic sternum. Scale bars: A, B, D, E = 5 mm; C = 1 mm.
FIGURE 7. A in Ngan mayla gen. et sp. nov, a new blind potamid cave crab from Borneo, Kalimantan (Crustacea: Decapoda: Brachyura: Potamoidea, Potamidae), and three other unidentified cave crabs from the same region
FIGURE 7. A, Isolapotamon sp., Lubang Bayan Cave, Merabu Karst, East Kalimantan, Borneo, 01°28'56"N, 117°11'32"E, August 2010, photographed in situ in the river preying on barb; crab not collected, probably a trogloxene; B, Isolapotamon sp., juvenile female, 7.8 × 8.9 mm, Lubang Tebot Cave, Kalimantan (East Kalimantan), Borneo, 1°34'58"N, 117°21'07"E, 360 m, 09 August 2010, MZB Cru 5711. Scale bar: B = 5 mm.
FIGURE 3 in Ngan mayla gen. et sp. nov, a new blind potamid cave crab from Borneo, Kalimantan (Crustacea: Decapoda: Brachyura: Potamoidea, Potamidae), and three other unidentified cave crabs from the same region
FIGURE 3. Ngan mayla gen. et sp. nov., holotype female, 12.2 × 15.3 mm, MZB Cru 5710: A, frontal view; B, left cheliped; C, D, carapace and chelipeds; E, ventral view; F, ventral anterior view. Scale bars: A–E = 5 mm; F = 1 mm.
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