(Belmont-Jégu, Elizabeth, Domingues, Marcus Vinicius & Martins, Mauricio Laterça 2004)
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Ordo: Characiformes
Familia: Characidae
Genus: Notozothecium
Name
Notozothecium janauachensis Belmont-Jégu, Elizabeth, 2004 – Wikispecies link – Pensoft Profile
- Notozothecium janauachensis Belmont-Jégu, Elizabeth, 2004, Zootaxa 736: 3-5.
Description
Synonym: Notozothecium sp. (of BelmontJégu, 1996). Typehost: Colossoma macropomum (Cuvier, 1818), Characidae, Serrasalminae.
Site: Gills.
Typelocality: Lago Janauacá — Rio Solimões, Amazonas, Brazil, 3 ° 25 'S, 60 ° 17 'W, 1994–1995.
Other records: Centro de Aqüicultura, Universidade Estadual Paulista, Jaboticabal, State of São Paulo, Brazil, 21 ° 16 'S, 48 ° 19 'W (1992).
Specimens deposited: Holotype, INPA208; 5paratypes, INPA209 a–e; 4 vouchers MZUSP5934 a–d; 6 vouchers INPA447 a–f; 7 vouchers CHIOC36393 a–g.
Etymology
Etymology: The specific name is derived from the type locality, Lago Janauacá. Comparative measurements: Table 1.
Description
from C. macropomum from natural habitats (Amazon basin) and experimental ponds. Natural habitats N Experimental ponds N Body Length Width Haptor330 (241–443) 111 (99–142)25 18 185 (150–235) 73 (55–100)17 17Length Width Pharynx60 (52–68) 92 (72–104)11 10 46 (43–59) 71 (62–85)16 16Diameter Copulatory organ26 (22–31)20 16 (12–18)17Length Ring diameter Accessory piece74 (62–84) 18 (16–22)32 9_ 20 (15–23)_ 17Length Dorsal anchor22–23 9_ _Length Base width Ventral anchor25 (24–28) 11 (10–13)18 12 28 (24–31) 8 (7–10)10 5Length Base width Bar length54 (50–58) 19 (16–22)21 26 68 (63–74) 20 (18–21)16 18Ventral Dorsal Hook lengths54 (48–64) 34 (30–38)24 15 64 (55–73) 35 (27–39)18 10Pairs 1, 2 Pairs 3, 4 Pair 5 Pair 6 Pair 7 17 (16–20) 22 (21–24) 20 (18–20) 21 (20–23) 26 (22–28)24 23 19 12 20 17 (16–18) 21(20–23) 20(18–21) 22(21–25) 27 (25–32)22 12 7 11 4 Description: (based on 6 adult specimens). Body fusiform, greatest width near midlength. Tegument with annulations throughout trunk and peduncle. Cephalic lobes moderately developed. Posterior eyes larger than anterior eyes, slightly farther apart than anterior pair; eyes granules elongate; accessory granules absent or few in cephalic and anterior trunk regions. Pharynx spherical to subovate. Peduncle broad. Haptor subhexagonal. Ventral anchor larger than dorsal anchor, robust, roots well developed, heavily truncate superficial root, elongate and evenly curved shaft, short point. Dorsal anchor with elongated superficial root, slightly depressed deep root, slender shaft, short point. Ventral bar robust, with short digitiform anteromedial process, enlarged terminations. Dorsal bar delicate, broadly Ushaped, with enlarged terminations. Hook with truncate erect thumb, delicate point, expanded shank; proximal subunit of shank variable in length; FH loop extending to union of shank subunits Copulatory organ comprising a coil of about one ring; base coneshaped with sclerotized margin; distal extremity with a long lateral extension pointed, feathershaped. Articulation process of accessory piece short, wide, uniting with proximal end of distal rod; distal rod slightly sigmoid; broadly hookshaped subterminal flap, serving as guide for male copulatory organ. Testis subovate; seminal vesicle sigmoid; prostatic reservoirs large, pyriform. Germarium subovate; vagina lightly sclerotized, a delicate tube opening on the dextrodorsal surface of the trunk; seminal receptacle pyriform; vitellaria limited to trunk, absent in regions of reproductive organs. Oviduct, ootype and uterus not observed.
Taxon Treatment
- Belmont-Jégu, Elizabeth; Domingues, Marcus Vinicius; Martins, Mauricio Laterça; 2004: Notozothecium janauachensis n. sp. (Monogenoidea: Dactylogyridae) from wild and cultured tambaqui, Colossoma macropomum (Teleostei: Characidae: Serrasalminae) in Brazil, Zootaxa 736: 3-5. doi
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