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FIGURES 50–52 in New water mites species (Acariformes: Hydrachnidia) from the Far East of Russia

FIGURES 50–52. Mixobates amurensis sp. n., female: 50, idiosoma, ventral view (part); 51, genital field; 52, pedipalp, medial view. Scale bars =100 μm for Fig. 50; 50 μm for Figs. 51–52.

FIGURES 53–54 in New water mites species (Acariformes: Hydrachnidia) from the Far East of Russia

FIGURES 53–54. Feltria orientalis sp. n., female: 53, idiosoma, dorsal view; 54, idiosoma, ventral view. Scale bar =100 µm.

FIGURES 44–49 in New water mites species (Acariformes: Hydrachnidia) from the Far East of Russia

FIGURES 44–49. Mixobates amurensis sp. n., male: 44, genital plate; 45, chelicera; 46, pedipalp, medial view; 47, pedipalpal tarsus; 48, tibia and tarsus of leg I; 49, claw. Scale bars = 50 μm for Figs. 44–46, 48; 25 μm for Figs. 47, 49.

FIGURE 1. A in Orientocreadium elegans n. sp. and Orientocreadium pseudobagri Ya m a g u t i (Digenea: Orientocreadiidae), from freshwater fish of the Primorsky region (southern far east, Russia) with a description of their life cycles

FIGURE 1. A. Orientocreadium pseudobagri from Perccottus glehni, adult, ventral view. B. Orientocreadium pseudobagri from Pelteobagrus fulvidraco, adult, ventral view. C. Orientocreadium elegans n. sp., holotype. D. Orientocreadium elegans n. sp., paratype. E. Cirrus sac of Orientocreadium pseudobagri.

FIGURE 2. A in Orientocreadium elegans n. sp. and Orientocreadium pseudobagri Ya m a g u t i (Digenea: Orientocreadiidae), from freshwater fish of the Primorsky region (southern far east, Russia) with a description of their life cycles

FIGURE 2. A. Cercaria of Orientocreadium pseudobagri from Lymnaea coreana, ventral view. B. Cercaria of Orientocreadium elegans n. sp. from Lymnaea coreana, ventral view. C. Metaercaria of Orientocreadium elegans n. sp. from Phoxinus lagowskii, ventral view. D. Metacercaria of Orientocreadium elegans n. sp. from Pseudorasbora parva, ventral view.

FIGURE 4 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 4. Leptodora richardi sp. nov., adult male, Lake Bolon'. A, antennule. B, clasping organ of tl I.

FIGURE 6 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 6. Length of abdomen and body length relationships in Leptodora richardi sp. nov. and L. kindtii (indications of localities are the same).

FIGURE 5 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 5. Head length and body length relationships in Leptodora richardi sp. nov. from different water bodies of the Lower Amur River basin (1) and L. kindtii from Lake Khanka (2), Gulf of Finland (3), and the Volga Delta (4).

FIGURE 2 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 2. Leptodora richardi sp. nov., adult female, Lake Bolon' (see also the "Abbreviations" after the Introduction). A–B, shell, dorsal view. C, mouth parts. D, labrum, ventral view. E, lateral lobe of lower lip. F, tl I. G, setae on basal segment of tl I. H, inner apical seta of basal segment of tl I. I, outer apical spine-like seta of basal segment of tl I. J, apical end of posterior distal seta (pd(s)) of third segment of tl I. K, apical end of anterior distal seta (ad(s)) of second segment of tl I. L, apical end of posterior distal seta (pd(s)) of second segment of tl I. M, processus maxillaris.

FIGURE 3 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 3. Leptodora richardi sp. nov., adult female, Lake Bolon'. A, tl II (median setae are indicated by arrows). B–C, distal median setae of second and third segments of tl II. D, tl III (median setae are indicated by arrows). E, outer apical spine-like seta of basal segment of tl III. F, tl IV (median setae are indicated by arrows). G, tl V (median setae are indicated by arrows). H, scheme of setae disposition of tl V. I, tl VI, lateral view. J, tl VI, frontal view.

FIGURE 1 in The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia)

FIGURE 1. Leptodora richardi sp. nov., adult female, Lake Bolon'. A, general lateral view. B, antennule. C, upper antennal branch (exopodite). D, lower antennal branch (endopodite) (proximal rudimentary segment is indicated by arrow). E, apical end of antennal basipodite. F, denticle on dorsal side of apical end of antennal basipodite near the base of upper branch. G, apical end of second segment of upper antennal branch. H, apical end of upper antennal branch. I, apical end of lower antennal branch. J, distal part of mandible. K, postabdominal claw. L, denticles of postabdominal claw. M, seta natatoria.

FIGURE 7 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 7. Pseudosida szalayi, females, Lower Amur River basin (SEM micrographs): branch of Sinda channel. A, end of basal part of antennule. B, distal part of proximal segment of upper branch of swimming antennae. C, end of lower antennal branch. D, hooked end of distal setae of second segment of lower antennal branch. E, posterior valve margin, inner side. F, the same at higher magnification.

FIGURE 6 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 6. Pseudosida szalayi, Lower Amur River basin: branch of Sinda channel, female (A, B), male (C−I). A, end of endopodite of thoracic limb of third pair (tl III), outer view. B, proximal corner of gnatobase of thoracic limb of third pair. C, thoracic limb of first pair, most of filtering setae of endopodite and their setules not shown. D, end of endopodite with clasping hook, outer view. E, the same, inner view. F, antennule. G, middle part of antennule, lateral side. H, armament of distal part of antennule. I, postabdomen, lateral view.

FIGURE 4 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 4. Pseudosida szalayi, females, Lower Amur River basin: branch of Sinda channel (A, B, E−M), pond near village Vinogradovka (N); Indonesia: fish pond (Tengaarong near Samarinda, east of Kalimantan) (C, D). A, setae of anterior valve margin, inner side. B, ventral and ventro-posterior valve margin, inner side. C, setae of ventro-anterior valve margin, outer side, setules not shown; D, the same under different angle. E, postabdomen, lateral, lateral view. F, distal end of postabdomen, dorsal view. G, bases of setae natatoriae. H−N, distal outgrowth of postabdomen, lateral view.

FIGURE 3 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 3. Pseudosida szalayi, females, Lower Amur River basin: pond near village Vinigradovka (A, B), branch of Sinda channel (G, J−M); China: Xiangvan City (Yunnan Province) (C), South Lake (Nanjing City) (E); Indonesia: fish pond (Tengaarong near Samarinda, east of Kalimantan) (D); Bangladesh: Aminbazan (Dhaka) (F); India: Balsagar Tank (Jabalpur) (H, I). A−E, distal end of proximal segment of upper antennal branch. F, distal end of antennal basipodite, outer side. G, basal part of antennal basipodite, dorsal view. H, distal end of lower antennal branch, dorsal view. I, distal end of antennal basipodite and proximal segment of upper branch, dorsal view. J, setae of lower antennal branch. K, armament of two dorsal setae of distal segment of lower antennal branch. L, M, armament of two hooked setae of lower antennal branch.

FIGURE 2 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 2. Pseudosida szalayi, females, Lower Amur River basin: branch of Sinda channel (A, C, D−H, J−L), Bol'shoi Ussuryisky Island (B), pond near village Vinogradovka (I). A, general lateral view. B, head, lateral view. C, antennule. D, E, distal end of antennal basipodite from outer and inner side, respectively. F, G, distal end of proximal segment of upper antennal branch from outer and inner side, respectively. H, I, distal end of distal segment of upper antennal branch. J, distal end of lower antennal branch. K, distal spine of second segment of lower antennal branch. L, maxillulae (mx I) and maxilla (mx II) near base of thoracic limb of first pair (tl I).

FIGURE 5 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 5. Pseudosida szalayi, females, Lower Amur River basin: branch of Sinda channel (A−F, L); China: South Lake, Nanjing City (C), Xiangvan City, Yunnan Province (J); Indonesia: fish pond (Tengaarong near Samarinda, east of Kalimantan) (H); India: Balsagar Tank, Jabalpur (I); Bangladesh: Aminbazan (K); ex—exopodite, gn—gnatobase; I, II, III, IV—segments of endopodite. A, thoracic limb of first pair (tl I), inner view, setules of filtering setae not shown. B, gnatobase of thoracic limb of first pair, inner view, setules of filtering setae not shown. C, thoracic limb of second pair (tl II), inner view, most of filtering setae of endopodite and their setules not shown. D, ends of filtering setae of endopodite of tl II. E, distal part of seta of proximal angle of gnatobase of tl II (J). F, thoracic limb of sixth pair, inner view. G, H, J, distal outgrowth of postabdomen, lateral view. I, deformed proximal spine of postabdominal claw. K, distal end of postabdomen, ventral view. L, proximal corner of gnatobase of thoracic limb of second pair.

FIGURE 1 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 1. Pseudosida szalayi, females, type specimens: B, D, F, G, I—lectotype, A—paralectotype, Ceylon (Sri Lanka), Lake Kalawewa; other material: C, E, H, J−L—Lake Sur (India, Orissa State). A, general lateral view. B, C, distal end of basipodite, outer side. D, E, distal end of proximal segment of upper antennal branch. F, distal end of distal segment of upper antennal branch. G, distal end of lower antennal branch. H, basal part of antennule. I, J, postabdomen, lateral view. K, dorsal outgrowths of postabdomen, lateral view. L, posterior valve margin, inner view.

FIGURE 8 in A taxonomic revision of Pseudosida szalayi Daday, 1898 (Crustacea: Cladocera: Sididae) over its Asian range, with focus on the northernmost populations first recorded from the Amur River basin (Far East of Russia)

FIGURE 8. Pseudosida szalayi, females, Lower Amur River basin (SEM micrographs): branch of Sinda channel. A, distal part of postabdomen, ventro-lateral side. B, armament of middle part of postabdominal claw. C, lateral side of proximal part of postabdomen. D, lateral side of distal part of postabdomen. E, molar part of right mandible. F, molar part of left mandible.

FIGURES 65–77 in A new species of Rhithrogena Eaton, 1881 from the Far East of Russia with notes on this genus in this area (Ephemeroptera: Heptageniidae)

FIGURES 65–77. Rhithrogena sibirica, larva: 65. Head, dorsal. 66. Labrum, dorsal. 67. Teeth of left mandible, dorsal. 68. Comb-shaped setae of the maxilla. 69. Gill I. 70. Gill III. 71. Gill IV. 72. Gill VII. 73. Setae on the dorsal surface of fore femora. 74. Abdominal sternum 9 (female). 75. Tarsal claw of fore leg. 76. Tarsal claw of middle leg. 77. Posterior margin of terga 5. Scale (mm): 65,69=1.0; 66,74=0.2; 67–68,75–76=0.01; 70–72=0.5; 73,77=0.05.