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1,021 results for “freshwater crabs”
FIGURE 1 in A new species of freshwater crab of the genus Neostrengeria Pretzmann, 1965, from Colombia (Crustacea: Decapoda: Pseudothelphusidae)
FIGURE 1. Neostrengeria alexae new species, holotype male, ICN-MHN-CR 2568. A, habitus; B, frontal view of carapace; C, large cheliped, external view; D, left third maxilliped, external view; E, left efferent branchial channel, external view.
FIGURE 4 in A new species of freshwater crab of the genus Allacanthos Smalley, 1964 (Crustacea, Decapoda, Pseudothelphusidae) from southern Costa Rica, Central America
FIGURE 4. Collection site of the holotype of Allacanthos yawi n. sp., from an unnamed forest stream tributary of Río Cañas, near Santa María, Puntarenas Province, Costa Rica.
FIGURE 1. Allacanthos yawi n in A new species of freshwater crab of the genus Allacanthos Smalley, 1964 (Crustacea, Decapoda, Pseudothelphusidae) from southern Costa Rica, Central America
FIGURE 1. Allacanthos yawi n. sp. A, Holotype male, UCR-MZ 2774-01, preserved in alcohol 70%, dorsal view; B, idem, ventral view; C, UCR-MZ 2777-01, photograph of a live specimen, male, dorsal view; D, idem, male, ventral view; E, idem, female, dorsal view; F, idem, female, ventral view. Scale bars = 10 mm.
FIGURE 2. Allacanthos yawi n in A new species of freshwater crab of the genus Allacanthos Smalley, 1964 (Crustacea, Decapoda, Pseudothelphusidae) from southern Costa Rica, Central America
FIGURE 2. Allacanthos yawi n. sp., holotype male, UCR-MZ 2774-01. A, left male first gonopod, whole limb, mesial view; B, idem, whole limb, laterocephalic view; C, idem, distal part, mesioapical view; D, idem, distal part, lateral view; E, left third maxilliped; F, left efferent branchial channel. Abbreviations: ap = field of apical spines; cl = cephalic lobe; cp = central papilla; lb = lateral lobe; ls = lateral suture; mas = marginal setae; mes = mesial setae; mp = marginal process; ms = marginal suture; plb = proximal lobe; sfs = subdistal field of spines. Scale bars = 1 mm.
FIGURE 5 in A new species of freshwater crab of the genus Allacanthos Smalley, 1964 (Crustacea, Decapoda, Pseudothelphusidae) from southern Costa Rica, Central America
FIGURE 5. Collection site of paratypes of Allacanthos yawi n. sp., from an unnamed forest stream tributary of Río Cañas, near Santa Rosa, Puntarenas Province, Costa Rica.
FIGURE 10. Potamonautes semilunaris. A, G1 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 10. Potamonautes semilunaris. A, G1, ventral view; B, G1, dorsal view; C, G2; D, detail of G1, ventral view; E, detail of G1, dorsal view. Adult male paratype (SMF 2429), length of G1 terminal article measured along the mid-line of the dorsal face from tip to dorsal membrane = 0.9 mm.
FIGURE 11 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 11. Potamonautes semilunaris distribution. = type locality, = other localities. Scale bar = 63 km. Localities are shown for material examined in this study and in Bott (1955).
FIGURE 8 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 8. Potamonautes gonocristatus distribution. = type locality, = other localities. Scale bar = 59 km. Localities are shown for material examined in this study and in Bott (1955).
FIGURE 9. Potamonautes semilunaris. A in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 9. Potamonautes semilunaris. A, dorsal view; B, frontal view; C, sternal view. Adult male paratype (SMF 2429), CW 20.0 mm.
FIGURE 7. Potamonautes gonocristatus. A, G1 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 7. Potamonautes gonocristatus. A, G1, ventral view; B, G1, dorsal view; C, G2; D, detail of G1 tip, ventral view; E, detail of G1 tip, dorsal view. Adult male (NMU 1972.09), length of G1 terminal article measured along the mid-line of the dorsal face from tip to dorsal membrane = 1.7 mm.
FIGURE 6. Potamonautes gonocristatus. A in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 6. Potamonautes gonocristatus. A, dorsal view; B, frontal view; C, sternal view. Adult male (NMU 1972.09), CW 19.3 mm.
FIGURE 4. Potamonautes minor. A, G1 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 4. Potamonautes minor. A, G1, ventral view; B, G1, dorsal view; C, G2; D, detail of G1 tip, ventral view; E, detail of G1 tip, dorsal view. Adult male paratype (SMF 2427), length of G1 terminal article measured along the mid-line of the dorsal face from tip to dorsal membrane = 1.4 mm.
FIGURE 3. Potamonautes minor. A in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 3. Potamonautes minor. A, dorsal view; B, frontal view; C, sternal view. Adult male paratype (SMF 2427), CW 20.4 mm.
FIGURE 2 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 2. Potamonautes perparvus distribution. = type locality, = other localities. Scale bar = 249 km. Localities are shown for material examined in this study, as well as those provided by Rathbun (1921, 1935) and Bott (1955).
FIGURE 5 in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 5. Potamonautes minor distribution. = type locality, = other localities. Scale bar = 249 km. Localities are shown for material examined in this study and from Bott (1955).
FIGURE 1. Potamonautes perparvus. A in A revision of the freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae) of the Lake Kivu drainage basin in Central and East Africa
FIGURE 1. Potamonautes perparvus. A, dorsal view; B, frontal view. Adult male holotype (AMNH 3383), CW 19.6 mm. Modified from Rathbun (1921).
FIGURE 2 in Freshwater crabs from eastern Panamá: a new species of Potamocarcinus H. Milne Edwards, 1853, and new records of two little-known species (Crustacea: Decapoda: Pseudothelphusidae, Trichodactylidae)
FIGURE 2. Spirocarcinus garthi (Pretzmann, 1971), male holotype (USNM 107096) (A–E). A, right male first gonopod, mesio-caudal view; B, distal part, lateral view; C, distal part, caudal-apical view; D, distal part, cephalic view; E, left third maxilliped; F, male, SMF 31704, outline of right side of lateral margin of carapace. Abbreviations: al, auriculariform lobe; ap, apical lobe; cl, semicircular subapical lobe; fs, field of apical spines; ls, lateral suture; lt, lateral-cephalic teeth; ms, marginal suture; st, subapical tooth. Scale bars, A–D, 1 mm, E, F, 5 mm.
FIGURE 3 in Freshwater crabs from eastern Panamá: a new species of Potamocarcinus H. Milne Edwards, 1853, and new records of two little-known species (Crustacea: Decapoda: Pseudothelphusidae, Trichodactylidae)
FIGURE 3. Geographic distribution of Melocarcinus meekei (Pretzmann, 1968) (•), Potamocarcinus darienensis sp. n. (˔), and Spirocarcinus garthi (Pretzmann, 1971) (⋅) in eastern Panama, Central America.
FIGURE 1. Potamocarcinus darienensis n in Freshwater crabs from eastern Panamá: a new species of Potamocarcinus H. Milne Edwards, 1853, and new records of two little-known species (Crustacea: Decapoda: Pseudothelphusidae, Trichodactylidae)
FIGURE 1. Potamocarcinus darienensis n. sp., male holotype, AMNH 19515. A, dorsal view, preserved in 70% alcohol (photo by C. Magalhães); B, ventral view (photo by C. Magalhães); C, left male first gonopod, mesial view; D, left male first gonopod, cephalic view; E, idem, distal part, lateral view; D, idem, distal part, apical-cephalic view; E, left efferent branchial channel; F, left third maxilliped. Abbreviations: cmp, median process; fs, field of apical spines; ls, lateral suture; me, mesial process; ml, mesial lobe; mp, marginal process; ms, marginal suture; pp, proximal process; rp, rounded protuberance. Scale bars: A, B, 10 mm, C–H, 1 mm.
FIGURE 3 in A new species of freshwater crab of the genus Phallangothelphusa Pretzmann, 1965, from Colombia (Crustacea: Decapoda: Pseudothelphusidae)
FIGURE 3. Phallangothelphusa martensis new species, male holotype, ICN-MHN-CR 2656, left first gonopod: A, apex distal view; Phallangothelphusa dispar (Zimmer, 1912), ICN-MHN-CR 0732, left first gonopod: B, apex, distal view. 1, distal projection of mesial process; 2, curvature; 3, proximal projection of mesial process; 4, lateral process.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.