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1 July 2003 Neotropical Monogenoidea. 42. Pavanelliella scaphiocotylus sp. nov. (Dactylogyridae) from the Nasal Cavity of the Guatemalan Chulin, Rhamdia guatemalensis (Siluriformes: Heptapteridae), from a Cenote on the Yucatán Peninsula, Mexico
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Abstract

The generic diagnosis of Pavanelliella (Monogenoidea: Dactylogyridae) is emended to include species with rounded, cephalic margins and well-developed haptors set off from the trunk by a peduncle. Pavanelliella scaphiocotylus sp. nov. is described from the nasal cavity of the Guatemalan chulin, Rhamdia guatemalensis (Heptapteridae), from Ixin-há Cenote, Yucatán, Mexico. The new species differs from its congener, Pavanelliella pavanellii, in possessing a well-developed haptor and peduncle, a coiled male copulatory organ comprising 5–6 counterclockwise rings, and a vaginal canal with 4–5 loops.

Delane C. Kritsky and Edgar Mendoza-Franco "Neotropical Monogenoidea. 42. Pavanelliella scaphiocotylus sp. nov. (Dactylogyridae) from the Nasal Cavity of the Guatemalan Chulin, Rhamdia guatemalensis (Siluriformes: Heptapteridae), from a Cenote on the Yucatán Peninsula, Mexico," Comparative Parasitology 70(2), 136-139, (1 July 2003). https://doi.org/10.1654/1525-2647(2003)070[0136:NMPSSN]2.0.CO;2
Published: 1 July 2003
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