taxonID	type	description	language	source
C66801D9051F558E83E980004C70A9F9.taxon	description	Figs 15 – 22	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
C66801D9051F558E83E980004C70A9F9.taxon	description	Description (based on 7 type specimens, 1 mounted in Hoyer, 6 stained with Gomori’s trichrome): Body fusiform, total length including haptor 451 (360 – 517; n = 5) long, 110 (92 – 130; n = 5) wide at level of germarium. Tegument smooth (Fig. 15). Cephalic margin broad; cephalic lobes poorly differentiated; 4 bilateral pairs of head organs with rod-shaped secretion; cephalic glands unicellular, posterolateral to pharynx. Eyes, pigment granules (eye-spots), absent. Mouth subterminal; pharynx muscular, spherical, 32 (30 – 35; n = 5) long, 28 (25 – 30; n = 5) wide; esophagus short; two intestinal ceca, confluent posteriorly, lacking diverticula. Haptor globose 90 (75 – 117; n = 5) wide. Anchors similar. Ventral anchor, superficial root narrow subtriangular, well developed; deep root inconspicuous; slightly curved shaft and point, forming angle of approximately 75 °, point extending just past level of tip of superficial root, outer 27 (25 – 29; n = 7) long, inner 30 (25 – 41; n = 7) long, base 19 (17 – 20; n = 7) (Fig. 21). Dorsal anchor, superficial root subtriangular; deep root inconspicuous; slightly curved shaft and point forming angle of approximately 70 °, point extending just past level of tip of superficial root, outer 25 (22 – 29; n = 5) long, inner 30 (29 – 32; n = 5) long, base 19 (17 – 20; n = 5) (Fig. 22). Ventral bar, variable (Figs 18 – 19) 41 (30 – 57; n = 7) long, 6 (4 – 10; n = 7) wide, broadly U-shaped or straight with inflated or rounded ends. Dorsal bar (Fig. 20) 41 (31 – 56; n = 7) long, 5 (4 – 6; n = 7) wide, V-shaped with rounded ends, two submedial projections posteriorly directed. Hooks similar (Fig. 17), 13 (13 – 14; n = 7) long, with upright truncate thumb; slightly curved shaft, short; non-dilated shank; filamentous hook about shank length. Genital pore opening midventral, anterior to copulatory complex; muscular genital atrium. Testis post-germarial (observed on paratypes), dorsal to germarium, ovoid, 56 (51 – 64; n = 3) long, 40 (32 – 47; n = 3) wide. Vas deferens looping left of intestinal cecum; seminal vesicle a dilatation of vas deferens; long prostatic reservoir with medial constriction. Copulatory complex comprising MCO, accessory piece (Fig. 16). MCO with tubular coiled shaft of less than one counterclockwise ring, frequently appearing J shaped, 68 (54 – 76; n = 4) long, with tapered distal region; base sclerotized, bulbous. Accessory piece 23 (18 – 30; n = 5) long, non-articulated with MCO, comprising straight rod, with tapered distal region, distal portion with a small gutter guarding distal portion of shaft of MCO. Germarium 51 (47 – 55; n = 5) long, 42 (35 – 52; n = 5) wide, oval. Uterus delicate, ventral. Eggs, Mehlis’ gland and ootype not observed. Vagina heavily sclerotized, vaginal pore sinistral, marginal or submarginal, vaginal canal slightly sclerotized, proximal region “ S ” - shaped, distal region expanded; seminal receptacle, spherical. Vitelline follicles dense, coextensive with ceca.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
C66801D9051F558E83E980004C70A9F9.taxon	description	Comparative measurements. Table 5.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
C66801D9051F558E83E980004C70A9F9.taxon	etymology	Etymology. The name akuanduba refers to a divinity called “ Akuanduba ” of the Arara native people from the Xingu Basin in Pará. According Arara mythic narratives, Akuanduba played his flute to bring order to the world. One day, because of human disobedience, they were thrown into the water. The few survivors had to learn from scratch how to give continuity to life.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
25671E94C93D59278199B856CB035103.taxon	description	Figs 23 – 29	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
25671E94C93D59278199B856CB035103.taxon	description	Comparative measurements. Table 6.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
0AB3D1BF419B51659E6D711529DC9AE5.taxon	description	Figs 8 – 14	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
0AB3D1BF419B51659E6D711529DC9AE5.taxon	description	Description (based on 10 type specimens, 6 mounted in Hoyer, 4 stained with Gomori’s trichrome): Body robust, fusiform, total length including haptor 712 (575 – 835; n = 8) long, 132 (102 – 157; n = 8) wide, at level of germarium. Tegument smooth (Fig. 8). Cephalic margin broad; cephalic lobes poorly differentiated; 4 or 5 bilateral pairs of head organs with rod-shaped secretion; cephalic glands unicellular, posterolateral to pharynx. Eyes, pigment granules (eye-spots), absent. Mouth subterminal; pharynx muscular, spherical, 39 (33 – 46; n = 7) long, 36 (30 – 42; n = 7) wide; esophagus short; two intestinal ceca, confluent posteriorly, lacking diverticula. Haptor subtriangular 89 (65 – 110; n = 8) wide. Anchors similar, base wide, superficial and deep root poorly developed. Ventral anchor, curved shaft and point, forming angle of approximately 85 °, point extending just past level of tip of superficial root, outer 40 (25 – 45; n = 10) long, inner 45 (28 – 52; n = 10) long, base 26 (16 – 30; n = 10) (Fig. 13). Dorsal anchor, slightly curved shaft and point, forming angle of approximately 110 °, point extending just past level of tip of superficial root, outer 35 (30 – 39; n = 10) long, inner 38 (36 – 42; n = 10) long, base 20 (15 – 23; n = 10) (Fig. 14). Ventral bar (Fig. 11) 44 (32 – 57; n = 9) long, 6 (4 – 9; n = 8) wide, straight with knobbed ends. Dorsal bar (Fig. 12) 49 (35 – 65; n = 10) long, 6 (3 – 8; n = 10) wide, straight with inflated or rounded ends; two submedial projections posteriorly directed. Hooks similar (Fig. 10), 14 (13 – 15; n = 8) long, with upright rounded thumb; slightly curved shaft, short; non-dilated shank; filamentous hooket about ½ shank length. Genital pore opening to left of body midline, anterior to copulatory complex; muscular genital atrium. Testis post-germarial, dorsal to germarium, ovoid, 43 (43 – 44; n = 2) long, 27 (24 – 30; n = 2) wide. Vas deferens looping left of intestinal cecum; seminal vesicle a dilatation of vas deferens; prostatic reservoir with medial constriction. Copulatory complex comprising MCO, accessory piece (Fig. 9). MCO, coiled sclerotized tube, 572 (550 – 637; n = 9) long, with 3 ½ counterclockwise rings, with tapered distal region, base of MCO sclerotized. Accessory piece 121 (110 – 130; n = 5) long, non-articulated with MCO, comprising sigmoid rod, with cup-shaped distal region. Germarium 85 (65 – 106; n = 5) long, 49 (39 – 62; n = 5) wide, pyriform. Eggs, Mehlis’ gland, ootype and uterus not observed. Vagina heavily sclerotized, vaginal pore sinistral, marginal or submarginal, vaginal canal long, convoluted, heavily sclerotized, proximal region looped, distal region sigmoid; seminal receptacle pyriform. Vitelline follicles dense, coextensive with ceca.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
0AB3D1BF419B51659E6D711529DC9AE5.taxon	description	Comparative measurements. Table 4.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
0AB3D1BF419B51659E6D711529DC9AE5.taxon	etymology	Etymology. The specific name is in honor of Dr Leandro Melo de Sousa, Universidade Federal do Pará, Brazil, in recognition of his valuable work on the fish diversity of Xingu River, and also because the specific name of the host species, “ gabiru ”, is the nickname of Dr de Souza (Birindelli et al. 2011). Now, Dr de Sousa has the host and parasite named after him.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
8DA23CEAA1C15FFB8F784ECE0DF01EDC.taxon	description	Figs 1 – 7	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
8DA23CEAA1C15FFB8F784ECE0DF01EDC.taxon	description	Description (based on 10 type specimens, 5 mounted in Hoyer, 5 stained with Gomori’s trichrome): Body fusiform, total length including haptor 356 (250 – 462; n = 10) long, 77 (62 – 95; n = 10) wide at level of germarium. Tegument smooth. (Fig. 1). Cephalic margin rounded, cephalic lobes inconspicuous; 3 or 4 bilateral pairs of head organs with rod-shaped secretion; cephalic glands unicellular, posterolateral to pharynx. Eyes, pigment granules (eye-spots), absent. Mouth subterminal; pharynx muscular, sub-spherical, 28 (24 – 33; n = 9) long, 23 (17 – 25; n = 9) wide; esophagus short, two intestinal ceca, confluent posteriorly; lacking diverticula. Haptor globose 67 (55 – 85; n = 9) wide. Anchors similar. Ventral anchor, superficial root, narrow triangular, well developed; deep root inconspicuous; slightly curved shaft and point, forming angle of approximately 90 °; point extending just past level of tip of superficial root, outer 27 (24 – 31; n = 10) long, inner 28 (25 – 32; n = 10) long, base 18 (11 – 22; n = 10) (Fig. 6). Dorsal anchor, superficial root triangular, large; deep root inconspicuous; slightly curved shaft and point, forming angle of approximately 75 °, point extending just past level of tip of superficial root, outer 28 (21 – 31; n = 8) long, inner 29 (27 – 31; n = 8) long, base 19 (16 – 31; n = 7) (Fig. 7). Ventral bar (Fig. 4) 35 (28 – 45; n = 10) long, 5 (3 – 7; n = 10 wide, broadly U-shaped with inflated ends, slightly curved in posterior direction. Dorsal bar (Fig. 5) 36 (28 – 45; n = 10) long, 4 (3 – 6; n = 10) wide, U-shaped with rounded ends, slightly curved; two submedial projections posteriorly directed. Hooks similar (Fig. 3), 13 (12 – 17; n = 10) long, with upright rounded thumb; slightly curved shaft, short; non-dilated shank; filamentous hooklet loop about shank length. Genital pore opening midventral, anterior to copulatory complex; muscular genital atrium. Testis post-germarial, dorsal to germarium, elongated 47 (31 – 69; n = 6) long, 33 (25 – 39; n = 6) wide. Vas deferens looping left of intestinal cecum; seminal vesicle a dilatation of vas deferens; long prostatic reservoir with medial constriction. Copulatory complex comprising MCO, accessory piece (Fig. 2). MCO, coiled sclerotized tube 236 (201 – 299; n = 7) long, with 2 ½ counterclockwise rings, with tapered distal region, base MCO, wide sclerotized margin. Accessory piece 36 (31 – 50; n = 6) long, non-articulated with MCO, comprising straight rod, distal end with elongate torch-shaped blade, guarding termination of MCO. Germarium 44 (31 – 69; n = 8) long, 23 (17 – 31; n = 8) wide, pyriform. Eggs, Mehlis’ gland, ootype and uterus not observed. Vagina slightly sclerotized, vaginal pore sinistral, marginal or submarginal, vaginal vestibule cup-shaped, long vaginal canal, sigmoid, slightly sclerotized; seminal receptacle oval. Vitelline follicles dense, coextensive with ceca.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
8DA23CEAA1C15FFB8F784ECE0DF01EDC.taxon	description	Comparative measurements. Table 3.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
8DA23CEAA1C15FFB8F784ECE0DF01EDC.taxon	etymology	Etymology. The specific name (a noun) is from Greek (phryctos = burning torch + phallos = penis) and refers to the unique shape of the accessory piece.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
680D181A0CEA506C8B68C762E9FABADF.taxon	description	Figs 30 – 36	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
680D181A0CEA506C8B68C762E9FABADF.taxon	description	Description (based on 10 type specimens, 3 mounted in Hoyer, 7 stained with Gomori’s trichrome): Body fusiform, total length including haptor 315 (215 – 517; n = 9) long, 89 (65 – 122; n = 9) wide, at level of germarium. Tegument smooth (Fig. 30). Cephalic margin rounded, cephalic lobes inconspicuous; 5 or 6 bilateral pairs of head organs with rod-shaped secretion; cephalic glands unicellular, posterolateral to pharynx. Eyes, pigment granules (eye-spots), absent. Mouth subterminal; pharynx muscular, spherical, 33 (25 – 36; n = 8) long, 17 (15 – 20; n = 8) wide; esophagus short; two intestinal ceca, confluent posteriorly, lacking diverticula. Haptor hexagonal 71 (52 – 90; n = 9) wide. Anchors similar. Ventral anchor, divergent roots; superficial root triangular, well developed, with conspicuous fold; deep root developed; slightly curved shaft and point, forming angle of approximately 65 °, point extending just past level of tip of superficial root, outer 24 (21 – 28; n = 6) long, inner 28 (27 – 32; n = 6) long, base 10 (8 – 12; n = 6) (Fig. 35). Dorsal anchor, divergent roots; superficial root subtriangular, with conspicuous fold; deep root developed; slightly curved shaft and point, forming angle of approximately 80 °, point extending just past level of tip of superficial root, outer 24 (18 – 27; n = 4) long, inner 29 (29 – 30; n = 4) long, base 10 (10 – 11; n = 4) (Fig. 36). Ventral bar (Fig. 33) 35 (27 – 45; n = 10) long, 4 (3 – 5; n = 10) wide, broadly U-shaped with inflated ends, posteromedial projection devel oped. Dorsal bar (Fig. 34) 29 (21 – 38; n = 10) long, 3 (2 – 3; n = 10) wide, V-shaped, with slightly inflated ends. Hooks similar (Fig. 32), 21 (20 – 25; n = 10) long, with upright slightly acute thumb; slightly curved shaft, short; dilated shank; filamentous hook about ½ shank length. Genital pore opening midventral, anterior to copulatory complex. Testis post-germarial, dorsal to germarium, ovoid 25 (20 – 30; n = 2) long, 19 (19 – 20; n = 2) wide. Vas deferens looping left of intestinal cecum; seminal vesicle a dilatation of vas deferens; transversally elongated prostatic reservoir. Copulatory complex comprising MCO, accessory piece (Fig. 31). MCO a coiled sclerotized tube, 96 (88 – 106; n = 6) long, with 2 ½ counterclockwise rings, with tapered distal region; base a cap with sclerotized margin. Accessory piece 16 (15 – 18; n = 5) long, elongated, non-articulated with MCO, with tapered proximal region, distal end with small gutter guarding termination of MCO. Germarium 45 (29 – 62; n = 2) long, 18 (16 – 20; n = 2) wide, elongate. Eggs, Mehlis’ gland, ootype and uterus not observed. Vagina slightly sclerotized, ventral, opening sinistrally; vaginal canal slightly sclerotized, distal region with a bulb serving the connection to the seminal receptacle; seminal receptacle, pyriform. Vitelline follicles dense, coextensive with ceca.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
680D181A0CEA506C8B68C762E9FABADF.taxon	description	Comparative measurements. Table 7.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
680D181A0CEA506C8B68C762E9FABADF.taxon	etymology	Etymology. The species is dedicated to Dr. Gregory J. Klassen in recognition for his work on systematics of monogenoids.	en	Soares, Geusivam Barbosa, dos Santos Neto, JoãoJoão Flor, Domingues, Marcus Vinicius (2018): Dactylogyrids (Platyhelminthes: Monogenoidea) from the gills of Hassar gabiru and Hassar orestis (Siluriformes: Doradidae) from the Xingu Basin, Brazil. Zoologia 35: 1-16, DOI: 10.3897/zoologia.35.e23917
