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FIGURE 1 in Redescription of Parotocinclus haroldoi Garavello, 1988 (Siluriformes: Loricariidae), Northeastern Brazil

FIGURE 1. Lateral, dorsal, and ventral views of Parotocinclus haroldoi, holotype, MNRJ 10531, 35.8 mm SL, female, Brazil, córrego do Otaviano, Riacho Sanharó, Piauí, Brazil (Foto: Sergio Santos).

FIGURE 21 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 21. Euthyonidiella trita (Sluiter, 1910), UFPB.ECH-2124. A, external view of animal; B, calcareous ring; C–D, tables from body wall; E, plates from tube feet; F, endplate.

FIGURE 16 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 16. Pseudothyone belli (Ludwig, 1887), UFPB.ECH-2097. A, external view of animal; B, calcareous ring; C, rosette from tentacles; D–E, elongated to rounded tables from introvert; F, rosettes from introvert; G–H, knobbed buttons from body wall; I, large knobbed plate from body wall; J, supporting table from tube feet; K, supporting plate from tube feet; L, external view of a young specimen.

FIGURE 15 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 15. Lissothuria braziliensis (Théel, 1886), UFPB.ECH-1292. A, external view of the animal; B, scale-like plates from body wall; C, anal teeth; D, tentacles; E, plates from ventral body wall l; F, hourglass-shaped table; G, small table from body wall; H, supporting rod from tube feet; I, smooth button from tube feet.

FIGURE 12. Thyone pseudofusus Deichmann, 1930 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 12. Thyone pseudofusus Deichmann, 1930, UFPB.ECH-2114. A, external view of the animal; B, calcareous ring; C–D, tables from introvert; E, rod from tentacles; F, rosette from tentacles; G, rod and rosettes from tentacles; H, tables from body wall; I–J, supporting tables from tube feet; K, table from body wall.

FIGURE 11. Thyone pawsoni Tommasi, 1972 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 11. Thyone pawsoni Tommasi, 1972, UFPB.ECH-1992. A, external view; B, calcareous ring; C, table from introvert; D, tables from body wall; E, young specimen (UFPB.ECH-2119).

FIGURE 9 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 9. Thyone crassidisca Pawson & Miller, 1981, UFPB.ECH-2113. A, external view; B, calcareous ring; C, tables from tentacles; D, tables from introvert; E, perforated rods from tentacles; F, rosette from tentacles; G, base of table from body wall; H, supporting tables from tube feet; I, supporting plate from tube feet.

FIGURE 10 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 10. Thyone crassidisca Pawson & Miller, 1981, UFPB.ECH-2113. A–B, supporting tables from tube feet; C, endplate; D–E, tables from body wall.

FIGURE 7. Pentamera pulcherrima Ayres, 1852 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 7. Pentamera pulcherrima Ayres, 1852, UFPB.ECH-2147. A, external view; B, calcareous ring; C, rosettes from introvert; D–E, tables from body wall; F, supporting tables from tube feet.

FIGURE 8 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 8. Stolus cognatus (Lampert, 1885), UFPB.ECH-1946. A, external view of the animal; B, calcareous ring; C, rosettes from tentacles; D, small rods from tentacles; E, large rod from tentacles; F, fragment of large plate from introvert; G, rosettes from introvert; H–I, plates from body wall; J, supporting rod from tube feet; K, supporting plates from tube feet; L, endplate.

FIGURE 4 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 4. Parathyone braziliensis (Verrill, 1868), UFPB.ECH-1063. A, external view of the animal; B, animal in natural environment; C, dorsal view of the calcareous ring, detail of radial plate; D, dorsal view of the calcareous ring, detail of interradial plate; E, ventral view of the calcareous ring, detail of radial plate; F, ventral view of the calcareous ring, detail of interradial plate. Where, IRd = dorsal interradial plate; Rd = dorsal radial plate; IRv = ventral interradial plate; Rv = ventral radial plate; PA = point of attachment of the retractor muscles and notch for the passage of radial nerves. (Figure B by Alvaro Borba).

FIGURE 2 in Dendrochirotida (Echinodermata: Holothuroidea) from the northeastern coast of Brazil

FIGURE 2. Parathyone suspecta (Ludwig, 1875), UFPB.ECH-1061. A, external view of the animal; B, tentacles; C, dorsal view of the calcareous ring, detail of radial plate; D, dorsal view of the calcareous ring, detail of interradial plate; E, ventral view of the calcareous ring, detail of radial plate; F, ventral view of the calcareous ring, detail of interradial plate. Where, IRd = dorsal interradial plate; Rd = dorsal radial plate; IRv = ventral interradial plate; Rv = ventral radial plate; PA = point of attachment of the retractor muscles and notch for the passage of radial nerves.

FIGURE 3. A–F in A new species of Biffarius Manning & Felder, 1991 (Decapoda: Axiidea Callianassidae) from the intertidal coast of northeastern Brazil

FIGURE 3. A–F, Biffarius botterae sp. nov., A, B, D, F, holotype, male, cl 4.6 mm, tl 20.3 mm, MZUSP 39002; C, E, paratype, female, cl 4.1 mm, tl 19.3 mm, MZUSP 40375. A, abdominal somite 6, uropods, and telson, dorsal view; B, C, male and female pleopods 1, respectively, external surface; D, E, male and female pleopods 2, respectively, external surface; F, pleopods 3 to 5, external surface. Scale bars: A, F = 1 mm; B–E = 0.5 mm.

FIGURE 2. A–H in A new species of Biffarius Manning & Felder, 1991 (Decapoda: Axiidea Callianassidae) from the intertidal coast of northeastern Brazil

FIGURE 2. A–H, Biffarius botterae sp. nov., A, B, E–H, holotype, male, cl 4.6 mm, tl 20.3 mm, MZUSP 39002; C, D, paratype, female, cl 4.1 mm, tl 19.3 mm, MZUSP 40375. A, B, major and minor chelipeds, respectively, lateral view; C, D, major and minor chelipeds, respectively, lateral view; E–H, pereopods 2 to 5, respectively, lateral view. Scale bars: A, B = 2 mm; C–H = 1 mm.

FIGURE 1. A–H in A new species of Biffarius Manning & Felder, 1991 (Decapoda: Axiidea Callianassidae) from the intertidal coast of northeastern Brazil

FIGURE 1. A–H, Biffarius botterae sp. nov., A, B, holotype, male, cl 4.6 mm, tl 20.3 mm, MZUSP 39002; C–H, paratype, male, cl 5.6 mm, tl 23.1 mm, MZUSP 40376. A, body, pereopods not represented, lateral view; B, carapace front, eyestalks, and antennular and antennal peduncles, dorsal view; C, left mandible, external surface; D, left maxillulla, external surface; E, left maxilla, external surface; F, left maxilliped 1, external surface; G, left maxilliped 2, external surface; H, left maxilliped 3, external surface. Scale bars: A, B = 2 mm; C, D = 0.5 mm; E–H = 1 mm.

FIGURE 6 in Description of Pseudosteineria longisetis sp. n. from northeastern Brazil with a review of the genus Pseudosteineria Wieser, 1956 (Nematoda: Xyalidae)

FIGURE 6. Pictorial key to valid species of the genus Pseudosteineria Wieser, 1956. Authors' original drawings were used to make the key, except for Pseudosteineria anticipans which is represented by the drawings of Wieser, 1959. Amphids anterior to or at the level of the group of subcephalic setae: A: P. longisetis sp. n.; B: P. ventropapillata Tchesunov, 2010; C: P. anteferens Wieser, 1956; D: P. anticipans Wieser, 1956; E: P. zhangi Huang & Li, 2010; F: P. sagittispiculata Fadeeva, 1986; G: P. pavo (Gerlach, 1957) Fadeeva, 1986; H: P. anteramphida Sun, Huang, Tang, Zang, Xiao & Tang, 2019; Amphids posterior to the group of subcephalic setae or not visible: I: P. paramirabilis (Gerlach, 1955) Tchesunov, 1990; J: P. sinica Huang & Li, 2010; K: P. coronata (Gerlach, 1955) Wieser, 1959; L: P. inaequispiculata (Platonova, 1971) Gerlach & Riemann, 1973; M: P. scopae (Gerlach, 1956) Wieser, 1959; N: P. pulchra (Mawson, 1957) Fadeeva, 1986; O: P. horrida (Steiner, 1916) Wieser, 1956.

FIGURE 4 in Description of Pseudosteineria longisetis sp. n. from northeastern Brazil with a review of the genus Pseudosteineria Wieser, 1956 (Nematoda: Xyalidae)

FIGURE 4. Pseudosteineria longisetis sp. n., paratype female (MNRJ-NEMA386). A: overview; B: lateral view of anterior end, showing lips, anterior sensilla, amphideal fovea, and two groups of subcephalic setae; C: lateral view of posterior end, showing anus, three caudal glands, and tail with two terminal setae.

FIGURE 5 in Description of Pseudosteineria longisetis sp. n. from northeastern Brazil with a review of the genus Pseudosteineria Wieser, 1956 (Nematoda: Xyalidae)

FIGURE 5. Pseudosteineria longisetis sp. n., paratype female (MNRJ-NEMA386). A: overview; B: lateral view of anterior end; C: lateral view of anterior end, showing amphideal fovea (1), subdorsal group of subcephalic setae (2), sublateral group of subcephalic setae (3), and subventral group of subcephalic setae (4); D: lateral view of reproductive system, showing reproductive cells (1), an egg (2), and vulva (3); E: lateral view of reproductive system, showing an egg (1) and vulva (2); F: lateral view of posterior end, showing tail with two terminal setae.

FIGURE 3 in Description of Pseudosteineria longisetis sp. n. from northeastern Brazil with a review of the genus Pseudosteineria Wieser, 1956 (Nematoda: Xyalidae)

FIGURE 3. Pseudosteineria longisetis sp. n., holotype male (MNRJ-NEMA385). A: overview; B: lateral view of anterior end, showing long somatic setae; C: lateral view of anterior end, showing amphideal fovea (1) and subcephalic setae (2); D: lateral view of posterior end, showing precloacal supplement (1), spicules (2), and gubernaculum with dorso-caudal apophysis (3); E: lateral view of posterior end, showing four terminal setae of tail.

FIGURE 2 in Description of Pseudosteineria longisetis sp. n. from northeastern Brazil with a review of the genus Pseudosteineria Wieser, 1956 (Nematoda: Xyalidae)

FIGURE 2. Pseudosteineria longisetis sp. n., holotype male (MNRJ-NEMA385). A: overview; B: lateral view of anterior end, showing lips, anterior sensilla, amphideal fovea, and two groups of subcephalic setae; C: lateral view of posterior end, showing striation of cuticle, precloacal supplement, spicule, gubernaculum, and tail with four terminal setae; D: spicule and gubernaculum with dorso-caudal apophysis.