Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
1,021
datasets available to search
ShareScore release 0.9.0
Dataset results
1,021 results for “freshwater crab”
Figure 7. Right G1 in A new genus for the freshwater crab Potamonemus asylos Cumberlidgeı 1993ı (Brachyura: Potamoidea: Potamonautidae) from Cameroonı Central Africaı with a key to the genera of the Potamonautinae
Figure 7. Right G1, ventral view (a–c) and dorsal view (d–f). (a,d) Buea asylos (Cumberlidge, 1993) comb. nov., holotype, adult ♂ CW 27.6 mm, between Buea and Kumba, Cameroon, total G1 length 5.9 mm (TA 2.7 mm, SS 3.2 mm) (NHM 1994.587); (b,e) Potamonemus mambilorum Cumberlidge and Clark, 1992, holotype, adult ♂, CW 34.5 mm, Somié, Cameroon, total G1 length 9.7 mm (TA 3.6 mm, SS 6.1 mm) (NHM 1991:183); (c,f) P. sachsi Cumberlidge, 1993, adult ♂, CW 31.6 mm, Obudu Plateau, Nigeria), total G1 length 9.0 mm (TA 3.4 mm, SS 5.6 mm) (NMU 8.IV.1983A). Scale bars: 2.0 mm.
Figure 3. Potamonemus sachsi Cumberlidge, 1993 in A new genus for the freshwater crab Potamonemus asylos Cumberlidgeı 1993ı (Brachyura: Potamoidea: Potamonautidae) from Cameroonı Central Africaı with a key to the genera of the Potamonautinae
Figure 3. Potamonemus sachsi Cumberlidge, 1993, adult ♂, CW 31.6 mm, Obudu Plateau, Nigeria (NMU 8.IV.1983A). (a) Whole animal, dorsal view; (b) whole animal, ventral view. Scale bar: 6.3 mm. Photographs by Phillip Crabb, NHM, London. Scale bar: 19 mm.
FIGURE 5 in A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China
FIGURE 5. (A) Colour in life. Calcipotamon puglabrum gen. nov. et sp. nov. from the type locality, Changjiang, Hainan Island. (B) Weathered limestone outcrop in a montane tropical forest at the type locality, the typical habitat of the new genus new species.
FIGURE 3 in A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China
FIGURE 3. Calcipotamon puglabrum gen. nov. et sp. nov. (A–C, F–G, H–I) male holotype (31.6 × 24.5 mm), SYSBM 001961; (D) male paratype (30.3 × 23.8 mm), SYSBM 001962; (E) male paratype (29.3 × 22.6 mm), AM P.104569. (A) Left maxilliped 3; (B) left G2, ventral view; (C–E) left G1s, ventral view; (F) minor chela (right); (G) major chela (left); (H) left G1 terminal segment, ventral view; (I) left G1 terminal segment, dorsal view. Scale bars: A–E, H–I = 1.0 mm; F–G = 5.0 mm.
FIGURE 2 in A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China
FIGURE 2. Calcipotamon puglabrum gen. nov. et sp. nov. (A–D) male holotype (31.6 × 24.5 mm), SYSBM 001961; (E–F) female paratype (31.5 × 24.6 mm), SYSBM 001964. (A) Cephalothorax, anterior view; (B) anterior thoracic sternum; (C) anterior thoracic sternum and pleon, ventral view; (D) sterno-pleonal cavity with G1 in situ, ventral view; (E) pleon, ventral view; (F) vulvae, ventral view.
FIGURE 4. A in A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China
FIGURE 4. A Bayesian inference (BI) tree based on the 16S rDNA for the "China-East Asian Islands" clade of the subfamily Potamiscinae. Support values at the nodes represent the> 50% posterior probabilities and bootstrap proportions for BI and maximum parsimony (MP), respectively.
FIGURE 1 in A new long-legged terrestrial freshwater crab, Calcipotamon puglabrum gen. nov et sp. nov. (Crustacea: Decapoda: Potamidae), from Hainan Island, China
FIGURE 1. Calcipotamon puglabrum gen. nov. et sp. nov., dorsal habitus. (A) male holotype (31.6 × 24.5 mm), SYSBM 001961; (B) female paratype (31.5 × 24.6 mm), SYSBM 001964.
FIGURE 5 in On a new species of freshwater crab from southern China (Crustacea, Brachyura, Potamidae)
FIGURE 5. Indochinamon frontatum sp. nov. left G1 of male holotype: ventral view (A); dorsal view (B); enlarged view of distal portion, ventral view (C); enlarged view of distal portion, dorsal view (D); left G2 (E). Scales, 1 mm.
FIGURE 1 in Geothelphusa boreas, a new montane freshwater crab (Crustacea: Potamidae Geothelphusa) from northeastern Taiwan, and the identity of G. hirsuta Tan & Liu, 1998
FIGURE 1. Collection sites (empty circles) for the Geothelphusa species from northern Taiwan. For locality names, see Table 1. R. = river.
Figure 2 in Revision of the higher taxonomy of Neotropical freshwater crabs of the family Pseudothelphusidae, based on multigene and morphological analyses
Figure 2. Tree with divergence estimates for nodes of the main groups of the Pseudothelphusoidea (numbers at the nodes represent millions of years before present), with 95% confidence intervals represented by the grey bars. Three fossil crabs were incorporated into the analysis: (1) Hillius youngi Bishop, 1983, from the lower Cretaceous; (2) Tanzanonautes tuerkai Feldmann et al., 2007 in the Potamonautidae, from the Paleogene of Tanzania; and (3) an undetermined Trichodactylidae from the late Middle Paleocene of Peru (Klaus et al., 2017).
Figure 5 in First record of the freshwater crab genus Esanthelphusa Naiyanetr, 1994 (Decapoda: Brachyura: Gecarcinucidae) from Myanmar, with the description of a new species from the Kayin State
Figure 5. Bayesian inference (BI) tree for the Esanthelphusa species and other freshwater crabs based on 16S rDNA sequences. Values at the nodes represent posterior probabilities and bootstrap values (BPP/BS). Five clades are recognised: Oceania clade (blue), Southeast Asia islands clade (yellow), China and Indochina Peninsula clade (orange), and Indian Peninsula clade (green). The new species is marked in bold and new sequences from the present study are indicated with asterisks.
Figure 2 in First record of the freshwater crab genus Esanthelphusa Naiyanetr, 1994 (Decapoda: Brachyura: Gecarcinucidae) from Myanmar, with the description of a new species from the Kayin State
Figure 2. Esanthelphusa kayinensis sp. nov., holotype, male, 31.58 × 25.34 mm, NNU16C-PA1 (a–e, g); paratypes, female, 29.65 × 24.49 mm, NNU16C-PA2 (f, h). (a) overall dorsal view; (b) overall ventral view; (c) frontal view of cephalothorax; (d) external view of major (left) chela; (e,f) ventral view of thoracic sternum with pleon; (g) thoracic sternum showing sterno-pleonal cavity and G1 in situ; h, thoracic sternum showing vulvae. White scale bar = 1.0 cm.
Figure 4. Gonopods 1 and 2 in A new multilocus phylogeny reveals overlooked diversity in African freshwater crabs (Brachyura: Potamoidea): a major revision with new higher taxa and genera
Figure 4. Gonopods 1 and 2 of the four genera in Erimetopini. A–C, Erimetopus vandenbrandeni; D–F, Longipotamonautes ballayi; G–I, Nesonautes margaritarius; J–L, Occidensonautes ecorssei. Scale bar: A–L = 2.0 mm.
Figure 3. Gonopods 1 and 2 in A new multilocus phylogeny reveals overlooked diversity in African freshwater crabs (Brachyura: Potamoidea): a major revision with new higher taxa and genera
Figure 3. Gonopods 1 and 2 of four genera in Liberonautinae. A–C, Buea asylos (Cumberlidge et al., 2019: fig. 7a, d; 8a); D–F, Potamonemus mambilorum (Cumberlidge et al., 2019: fig. 7b, e; 8b); G–I, Sudanonautes floweri; J–L, Louisea balssi (Mvogo Ndongo et al., 2018: fig. 5a–c, © Magnolia Press, reproduced with permission from the copyright holder). A, D, G, J, left G1 ventral view; B, E, H, K, left G1 dorsal view; C, F, I, L, left G2 ventral view. Scale bar: A, B, D, E, G, H, J, K = 2.0 mm, C, F, I, L = 1.8 mm.
Figure 2. Liberonautinae. Gonopods 1 and 2 in A new multilocus phylogeny reveals overlooked diversity in African freshwater crabs (Brachyura: Potamoidea): a major revision with new higher taxa and genera
Figure 2. Liberonautinae. Gonopods 1 and 2 of Liberonautes latidactylus, NMU9.V.2005B (CW 72, CL 47.2, CH 20.5, FW 19.3 mm) Guinea, West Africa. A, left G1 ventral view; (B) left G1 dorsal view; (C) left G2 ventral view. Scale bar: A, B = 2.8 mm, C = 1.8 mm.
Figure 1 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 1. Vahatra ambohitra (Cumberlidge and Meyer, 2009) comb. nov., holotype, adult ♂, CW 39.5 mm, MNHN B 30154, from Diana Region, Madagascar, views of the cephalothorax: a, dorsal, c, frontal, e, ventral. Toamasina clarki sp. nov., holotype, adult ♂, CW 43.0 mm, NMU PN 17–21.3.2003, from Toamasina Province, Madagascar, views of the cephalothorax: b, dorsal; d, frontal, and f, ventral. Scale bar: a, c, e = 8.4 mm; b, d, f = 8.8 mm.
FIGURE 2. Arcopotamonautes parekeeae n in Two new freshwater crab species from the Eastern Arc Mountains, Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae)
FIGURE 2. Arcopotamonautes parekeeae n. sp., adult male holotype, CW 39.0 mm, Yongoma River, South Pare Mountains, Tanzania (NMU 1968.02a): A, carapace, frontal view; B, cephalothorax showing pleon and posterior thoracic sternum, posteroventral view; C, cephalothorax showing anterior thoracic sternum, ventral view; D, left third maxilliped, 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. Scale bar: A = 5.3 mm; B, C = 8.0 mm; D = 1.9 mm; E = 1.3 mm.
FIGURE 3 in A new species of freshwater crab of the genus Huananpotamon Dai & Ng, 1994 (Decapoda: Brachyura: Potamidae) from northern Jiangxi, China
FIGURE 3. Huananpotamon amicitiae sp. nov., male holotype, 20.5 × 16.5 mm, NNU 16C-220815HA1: A, left third maxilliped; B, left G1 (dorsal view); C, left G1 (ventral view); D, left G2; E, right cheliped; F, left cheliped; G, left G1 terminal segment (lateral view). Scale bars: 1 mm.
FIGURE 5 in A new species of freshwater crab of the genus Huananpotamon Dai & Ng, 1994 (Decapoda: Brachyura: Potamidae) from northern Jiangxi, China
FIGURE 5. The ventral and lateral view of G1: A–B, Huananpotamon amicitiae sp. nov., male holotype, 20.5 × 16.5 mm, Shangrao, Jiangxi, NNU 16C-220815HA1; C–D, H. koatenense (Rathbun, 1904), male, 19.2 × 15.8 mm, Wuyishan, Fujian, NNU 16C-211220HK1; E–F, H. lini Cheng & Li, 2008, male, 18.8 × 16.5 mm, NNU 11B-211225HL1. Scale bars: 1 mm.
FIGURE 7 in A new species of freshwater crab of the genus Huananpotamon Dai & Ng, 1994 (Decapoda: Brachyura: Potamidae) from northern Jiangxi, China
FIGURE 7. Bayesian inference tree based on 16S rDNA sequences. Values at nodes represent posterior probability (BPP) values and bootstrap (BS) values for BI and ML, respectively. Only values over 0.5/70 (BPP/BS) shown. Accession numbers and locations annotated on phylogenetic tree. Distribution areas of nine species of Huananpotamon shown in upper left map using same colors as on phylogenetic tree.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.