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207 results for “Ocypodidae”
Figure 4 in Population biology of the fiddler crab Uca maracoani (Crustacea, Ocypodidae) inhabiting an impacted mangrove area on the southern coast of São Paulo state, Brazil
Figure 4. Frequency of juveniles (%) of Uca maracoani by month.
Fig. 4 in New Species Of Ilyoplax (Brachyura: Ocypodidae: Dotillinae) From The Philippines And Indonesia: Behavioral, Molecular, And Morphological Evidence
Fig. 4 Dorsal view of living Ilyoplax pacifica at Lucap, Luzon Is., the Philippines, 14 Dec.2000.
Fig. 1 in New Species Of Ilyoplax (Brachyura: Ocypodidae: Dotillinae) From The Philippines And Indonesia: Behavioral, Molecular, And Morphological Evidence
Fig. 1 Ilyoplax pacifica, new species, male holotype (ZRC 2006.99).
Figure 1a in Redescription of the megalopa of the fiddler crab Uca uruguayensis (Decapoda, Brachyura, Ocypodidae) with special emphasis on its setae
Figure 1a. Dorsal view of the megalopa of Uca uruguayensis. Scale bar: 500 mm.
Figure 4 in Comparative population biology of Uca rapax (Smith, 1870) (Brachyura, Ocypodidae) from two subtropical mangrove habitats on the Brazilian coast
Figure 4. Uca rapax. Monthly size–frequency distributions for the Ubatumirim population.
Figure 3 in Comparative population biology of Uca rapax (Smith, 1870) (Brachyura, Ocypodidae) from two subtropical mangrove habitats on the Brazilian coast
Figure 3. Uca rapax. Monthly size–frequency distributions for the Itamambuca population.
Fig. 2 in Systematics of the family Ocypodidae Rafinesque, 1815 (Crustacea: Brachyura), based on phylogenetic relationships, with a reorganization of subfamily rankings and a review of the taxonomic status of Uca Leach, 1814, sensu lato and its subgenera
Fig. 2. cont'd above.
Fig. 14 in On a collection of thoracotreme crabs (Crustacea: Brachyura: Ocypodidae, Macrophthalmidae, Dotillidae) from two offshore islands of Papua, eastern Indonesia, with descriptions of two new species
Fig. 14. Habitat of Macrophthalmus manggala, new species (Photograph by Sumaryanto Bronto).
Female fiddler crabs, Austruca lactea (Decapoda: Ocypodidae), adjust their rate of mate sampling based on remaining days until oviposition under a size-dependent temperature constraint
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FIGURE 14. Family Ocypodidae. A in Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: III. Infraorder Brachyura Latreille, 1802
FIGURE 14. Family Ocypodidae. A) Leptuca leptodactyla (Rathbun, in Rankin, 1898) (CCDB 5276). B) Leptuca thayeri (Rathbun, 1900) (CCDB 2540). C) Leptuca uruguayensis (Nobili, 1901) (CCDB 5275). D) Minuca burgersi (Holthuis, 1967) (CCDB 5277). E) Minuca mordax (Smith, 1870) (CCDB 5545). F) Minuca rapax (Smith, 1870) (CCDB 5296). G) Ocypode quadrata (Fabricius, 1787) (CCDB 5087). H) Ucides cordatus (Linnaeus, 1763) (CCDB 5059). Animals from Brazil, São Paulo state: Ilha Comprida (A, C, D), Ubatuba (B, F, G), Iguape (E), Cananéia (H). Sex: male (A–G), female (H). Scale bars (mm): A—7; B—13; C—7; D—11; E—13; F—16; G—27; H—42. Photographs by R.C. Buranelli.
Data from: Constraints on geographic variation in fiddler crabs (Ocypodidae: Uca) from the western Atlantic
A key question in evolutionary biology is how intraspecific variation biases the evolution of a population and its divergence from other populations. Such constraints potentially limit the extent to which populations respond to selection, but may endure long enough to have macroevolutionary consequences. Previous studies have focused on the association between covariation patterns and divergence among isolated populations. Few have focused on geographic variation among semi-connected populations, however, even though this may be indicative of early selective pressures that could lead to long-term divergence and speciation. Here, we test whether covariation in the shape of the carapace of fiddler crabs (genus Uca Leach, 1814) is important for structuring geographic variation. We find that morphological divergence among populations is associated with evolvability in the direction of divergence in only a few species. The shape of the ancestral covariation matrix in these species differs from other species in having notably more variation concentrated along fewer directions (i.e., higher eccentricity). For most species, there is some evidence that covariation has constrained the range of directions into which populations have diverged but not the degree of divergence. These results suggest that even though fiddler crab populations have diverged morphologically in directions predicted by covariation, constraints on the extent to which divergence has occurred may only be manifested in species where variation patterns are eccentric enough to limit populations' ability to respond effectively in many directions.
FIGURE 5. A, B in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 5. A, B, habitus and major chela of the holotypes of Mesuca (Latuca) neocultrimana Bott, 1973 (SMF-5654); C, D, habitus and major chela of the holotypes of Uca (Thalassuca) vocans pacificensis Crane, 1973 (USNM 137670); E, F, major chelae of Uca vocans (Linnaeus, 1758); G, H, major chelae of Uca borealis Crane, 1975.
FIGURE 1 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 1. Collection sites for species of the Uca vocans complex used in our study: red circles (nos. 1–9) for U. jocelynae sp. nov.; blue triangles (nos. 10–11) for U. neocultrimana; green squares (nos. 12–18) for other species (Table 1). Gray circles and triangle (with nos. 19–28) mean the additional records of U. jocelynae and U. neocultrimana, respectively, from other references (Bott 1973; Crane 1975; Barnwell 1982; Minemizu 2000): 19, Kume I. in the Ryukyus; 20, Sulu in Philippines; 21, Zamboanga in Philippines; 22, Davao in Philippines; 23, Halmahera in Sulawesi; 24, Ambon in Indonesia; 25, Palau; 26, Madang in New Guinea; 27, Marshall; 28, Samoa. Different lines indicate the updated range of the two species.
FIGURE 6. A in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 6. A neighbor-joining (NJ) tree of species of the Uca vocans complex from the Indo-West Pacific and outgroups, based on 1193 bp of the combined 16S rRNA and COI genes. Probability values at the nodes represent support values for NJ, maximum parsimony (MP) and Bayesian inference (BI). **, *, holotype and paratype of U. jocelynae sp. nov., respectively. For haplotype names, see Table 1.
FIGURE 4 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 4. Uca jocelynae sp. nov. Variation of the live coloration. A–E, adult males; F, adult female; G, H, young males.
FIGURE 2 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 2. Uca jocelynae sp. nov. A-D, holotype (NMNS-6177-001). A, habitus, dorsal view; B, ventral view; C, major chela; D, frontal view; E, F, major chelae with live coloration.
FIGURE 3 in Uca jocelynae sp. nov., a new species of fiddler crab (Crustacea: Brachyura: Ocypodidae) from the Western Pacific
FIGURE 3. Uca jocelynae sp. nov. and U. neocultrimana (Bott, 1973). A, B, D–F, holotype of U. jocelynae (NMNS- 6177-001); C, U. jocelynae (RUMF-ZC-1076); G–I, holotype of U. neocultrimana. A, left third maxilliped; B, abdomen and telson; C, right vulva; D, G, right G1, lateral view; E, H; distal part of right G1, lateral view; F, I; distal part of right G1, mesial view. Scales = 1 mm.
FIGURE 17 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 17. Uca perplexa (H. Milne Edwards, 1852). male (ZMG 99), Indonesia, Moluccas. Tooth plates of the gastric mill: a, median tooth plate, ventral face; b, lateral tooth plate, mesial face.
FIGURES 16 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURES 16. Uca perplexa (H. Milne Edwards, 1852): a, male (UZM), Indonesia, Soelyi; b–f, male (UZM]), Cambodia, Lam Ngob; g, female (SMF 17146) Japan, Ryukyu Islands. a, major chela, outer surface. b, major chela, outer surface; c, major chela, inner surface; d, G1, lateral surface; e, apical part of G1, lateral surface; f, apical part of G1, mesial surface; g, genital opening of female.
FIGURE 14 in Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific
FIGURE 14. Median tooth of the gastric mill, ventral face. a, Uca lactea (De Haan, 1835), male (SMF 17161); b, Uca mjoebergi Rathbun, 1924, male (SMF 17163).
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