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FIGURE 7 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 7 | Localities where 'Chasmocranus' brachynema has been collected. A. Type-locality in the rio Mogi-Guaçu at Cachoeira de Emas. In the dry season, the water level lowers considerably, exposing the rocky bottoms. B. In the puddles thus formed, occasional fish specimens get trapped, such as this putative 'C.' brachynema (the identification is tentative since the specimen was not preserved). Photographs by Wellington A. M. Peres. C. Córrego Piava. Photograph by Weferson J. Graça.

FIGURE 9 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 9 | Heptapterus sp. 1. A. DZSJRP 7973, 45.4 mm SL. B. DZSJRP 7973, 108.4 mm SL. C. DZSJRP 20527, 109.2 mm SL. D. LBP 6414, 133.1 mm SL (photograph by Gabriel Silva). E. DZSJRP 20532, 152.6 mm SL. Notice the allometry in body depth, adipose-fin length, and caudal-fin length – smaller specimens present higher body depth and shorter adipose- and caudal-fin length. A and B were identified as 'Chasmocranus' brachynema by Thereza, Langeani (2019); C and E were identified as 'I.' borodini by Thereza, Langeani (2019); and D was identified as 'C.' brachynema by Pereira et al. (2013).

FIGURE 8 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 8 | Scatter plot charts of several morphometric characters as percentages of the standard length in 'Chasmocranus' brachynema (pink), Heptapterus longicauda (yellow), and Heptapterus sp. 1 (green). Depth at adipose-fin origin, cleithral width, lateral head length to opercle, adipose-fin base length, and pre-adipose length proportions are useful to distinguish between the three species, and dorsal caudal-fin lobe length to distinguish 'C.' brachynema and Heptapterus sp. 1 from H. longicauda. Data from the holotype of H. longicauda taken from Borodin (1927).

FIGURE 6 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 6 | Partial map of South America, showing the distribution of 'Chasmocranus' brachynema in the upper rio Paraná basin. Star, typelocality; losangle, NUP 22699; circle, MZUSP 22511 (rocky river channel submerged in 1974).

FIGURE 2 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 2 | 'Chasmocranus' brachynema, NUP 22699, 93.0 mm SL, 23°40'42"S 53°15'47"W, córrego Piava, tributary to the rio das Antas, tributary to the rio Ivaí, upper rio Paraná basin at the municipality of Umuarama, State of Paraná, Brazil.

FIGURE 5 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 5 | Cephalic laterosensory pores in 'Chasmocranus' brachynema, NUP 22699, 93.0 mm SL. Welldeveloped pores are outlined in black, except when hidden by other structures (in which case they are outlined in red). Poorly developed pores are outlined in grey. Abbreviations: i1–6, infraorbital sensory pores 1 to 6; ll1–2, lateral-line sensory pores 1 and 2; pm1–11, preoperculomandibular sensory pores 1 to 11; po1–3, postotic sensory pores 1–3; s1–8, supra-orbital sensory pores 1–8.

FIGURE 4 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 4 | Shape of the premaxillary tooth plates. A. 'Chasmocranus' brachynema, NUP 22699, 93.0 mm SL. B. Heptapterus longicauda, NUP 18882, 85.9 mm SL.

FIGURE 1 in Redescription of 'Chasmocranus' brachynema (Heptapteridae: Heptapterini)

FIGURE 1 | 'Chasmocranus' brachynema, EEBP 617, holotype, 128.3 mm SL, rio Mogi-Guaçu at Cachoeira de Emas, upper rio Paraná basin at Pirassununga, State of São Paulo. A. Recent photograph showing the current state of preservation of the specimen. B. Drawings from the original description, evidencing the original coloration of the specimen and the shape of the premaxillary (top) and dentary tooth plates.

Fig. 4 in Redescription of Aspidogaster limacoides Diesing, 1834 (Aspidogastrea: Aspidogastridae) from freshwater fishes of northern Germany

Fig. 4 Cross-section of Aspidogaster limacoides, histology, from the level of the anterior edge of the ventral disc: A and D arrows (black and blue) showing marginal organs on ventral disc; B, E and F diagram of marginal organ (black and red arrows); C dorsoventral and longitudinal muscles (green arrows). Note: A–C H&E staining and D–F Alcian blue staining

Fig. 3 in Redescription of Aspidogaster limacoides Diesing, 1834 (Aspidogastrea: Aspidogastridae) from freshwater fishes of northern Germany

Fig. 3 Aspidogaster limcoides, SEM: A marginal organ with terminal duct (scale bar = 2 µm); B and B 2: Arrow showing pits inside the mouth (scale bar = 20 µm); C Ventral disc showing pits on alveoli and septa (scale bar = 10 µm); D dorsal view, posterior body with pits (scale bar = 2 µm); E excretory pore (scale bar = 20 µm)

Fig. 5 in Redescription of Aspidogaster limacoides Diesing, 1834 (Aspidogastrea: Aspidogastridae) from freshwater fishes of northern Germany

Fig. 5 Phylogenetic tree based on analyses of ITS1-5.8S-ITS2 sequences of species belonging to the genus Aspidogaster using the maximum likelihood method of phylogenetic reconstruction with TIM2 + I model according to jModelTest software v 2.1.10. Nodal numbers give bootstrap statistical support for the analyses. AN, Amur River, Nikolaevsk-na-Amure; AK, Amur River, Khabarovsk; Kh, Khanka Lake; Chi, China; ER, European part of Russia; Ger, Germany; JPN, Japan. *Misidentified A. chongqingensis

Fig. 2 in Redescription of Aspidogaster limacoides Diesing, 1834 (Aspidogastrea: Aspidogastridae) from freshwater fishes of northern Germany

Fig. 2 Aspidogaster limcoides, SEM: A dorsal view (scale bar = 100 µm); B ventral view with ventral disc (scale bar = 100 µm); C neck region, arrow showing depression of neck (scale bar = 20 µm), square D showing papillae-like structures posterior lateral to mouth; D posterior lateral papillae (arrow) (scale bar = 2 µm); E ventral disc, arrow showing marginal organ (scale bar = 20 µm); F ventral rim with marginal organ with terminal duct (arrow) (scale bar = 10 µm)

Fig. 1 Aspidogaster limacoides line drawings from Rutilus rutilus from North Germany. A in Redescription of Aspidogaster limacoides Diesing, 1834 (Aspidogastrea: Aspidogastridae) from freshwater fishes of northern Germany

Fig. 1 Aspidogaster limacoides line drawings from Rutilus rutilus from North Germany. A Dorsal view (scale bar = 500 µm); B ventral view (scale bar = 500 µm); C eggs (scale bar = 50 µm); D cirrus sac (scale bar = 200 µm)

Fig. 6 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 6. Amblyseiulus messor (Wainstein, 1960) ♀ (1–7), Ơ (8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicera with spermatodactyl.

Fig. 4 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 4. Amblyseiulus jugortus (Athias-Henriot, 1966) (fig. 4) ♀ (1–7), Ơ (8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicera with spermatodactyl.

Fig. 9 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 9. Amblyseiulus sororculus (Wainstein, I960) ♀ (1–7), Ơ (8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicera with spermatodactyl.

Fig. 3 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 3. Amblyseiulus bregetovae (Abbasova, 1970) ♀ (1–7): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV.

Fig. 2. Chelaseius valliculosus Kolodochka, 1987 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 2. Chelaseius valliculosus Kolodochka, 1987 ♀ (1–7), Ơ (8, 9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV; 8 — ventrianal shield; 9 — chelicera with spermatodactyl; 10 — distitarsus of leg I.

Fig. 1 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 1. Amblyseiella antonii Kolodochka & Omeri, 2010 ♀ (1–9): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — genu; 8 — tibia; 9 — tarsus (fragment).

Fig. 5 in Predatory Mites (Phytoseiidae, Parasitiformes) Of The Fauna Of Ukraine: Redescriptions Of The Species Of Amblyseiella And Chelaseius, With Resurrection Of The Genus Status For Amblyseiulus

Fig. 5. Amblyseiulus mauiensis (Prasad, 1968) ♀ (1–7): 1 — dorsal shield; 2 — ventral body surface; 3 — metapodal plates; 4 — posterior part of peritremal schield; 5 — chelicera; 6 — spermatheca; 7 — fragment of leg IV.