Phalloceros harpagos Lucinda, 2008

Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, Neotropical Ichthyology 16 (2), pp. 1-111 : 100

Phalloceros harpagos Lucinda, 2008

Fig. 36

Body elongated; greatest depth contained 2.5 to 4.1 and caudal peduncle depth 5.4 to 8.1 times in SL; head length 4.0 to 5.6, predorsal distance 1.6 to 1.8, and gonopodium length 2.6 to 3.1 in SL; snout length 3.2 to 7.6, horizontal orbital diameter 1.9 to 3.0 and least interorbital width 2.3 to 2.4 in HL. Mouth superior, dentary prognathous; premaxilla and dentary with several small teeth. Longitudinal series with 26- 32 scales and transverse series with 7-9 scale rows. Dorsal fin with 7-9, pectoral fin with 11-13, pelvic fin with 5 or 6 and anal fin with 8-10 (males) or 10-12 rays (females) ( Graça, Pavanelli, 2007; Lucinda, 2008). Ground color yellowish brown; dark-brown lateral spot, vertically elongated; scales with dark-brown border, conferring reticulate pattern to body.

Maximum standard length. 45.2 mm.

Distribution. Paraná-Paraguay system and coastal drainages from the rio Itaboapana to the rio Araranguá.

Remarks. Phalloceros harpagos was identified as P. aff. caudimaculatus by Graça, Pavanelli (2007). Lucinda (2008), in a systematic study of Phalloceros , described the new species, P. harpagos , from the Paraná-Paraguay system and coastal drainages of Southern Brazil; and restricted the distribution of P. caudimaculatus to the rio Mampituba, Laguna dos Patos and rio Tramandaí drainages, lower río Uruguay and coastal drainages of Uruguay and Argentina.

Figures

Fig. 36. a. Melanorivulus sp., NUP 17575, córrego Querência, Amambaí, State of Mato Grosso do Sul (top, female, 24.7 mm SL; bottom, male, 28.3 mm SL). b. Pamphorichthys hollandi, NUP 16549, rio Baia, Taquarussu, State of Mato Grosso do Sul, Brazil (top, female, 22.8 mm SL; bottom, male, 17.6 mm SL). c. Phalloceros harpagos (top, female, NUP 9360, 22.7 mm SL, female, córrego de nome desconhecido, Jatei, State of Mato Grosso do Sul; bottom, male, NUP 1938, 18.0 mm SL, riacho Caracu, Porto Rico, State of Paraná). d. Phallotorynus pankalos, NUP 5839, córrego Sossego, tributary of the rio Iguatemi, Paranhos, State of Mato Grosso do Sul (top, female, 28.4 mm SL; bottom, male, 18.6 mm SL). e. Phallotorynus victoriae, NUP 1603, lagoa do Portinho, tributary of the rio Paraná, Três Lagoas, State of Mato Grosso do Sul (top, female, 14.6 mm SL; bottom, male, 18.6 mm SL). f. Poecilia reticulata, fresh specimens, uncat (top, female, 35.2 mm SL; bottom, male, 20.3 mm SL). g. Plagioscion squamosissimus, 330.0 mm SL, fresh specimen, uncat.