Ostariophysi

River Chub (Hybopsis kentuckiensis).

laboratory colony, Vanderbilt University, Nashville, Davidson County, Tennessee, US

Figure 2.a Telestes dabar, male paratype, live specimen, ZISP 54995, 58.9 mm SL, Bosnia & Herzegovina: Opačica River, Dabarsko Polje b Telestes metohiensis, live specimen, male, 86.2 mm SL, PZC 567, Bosnia & Herzegovina: spring Ljeskovik in Zalomka River, Nevesinjsko Polje c Telestes metohiensis, live specimen, male, 84.5 mm SL, PZC 566, Bosnia & Herzegovina: Zovidolka River (Zalomka River system), Nevesinjsko Polje.

Figure 3.Alburnoides manyasensis; Turkey: Balıkesir Province: Koca Stream, Lake Manyas drainage, holotype, FFR 01069, female, 82 mm SL.

Figure 2.a Pareiorhina hyptiorhachis, sp. n.,paratype, LBP 12248, 29.2 mm SL, showing the conspicuous postdorsal ridge b Pareiorhina carrancas, LBP 8380, 38.2 mm SL, showing the poorly-developed postdorsal ridge c Pareiorhina rudolphi, LBP 8044, 40.5 mm SL, showing the absence of a postdorsal ridge.

Figure 27.Carasobarbus sublimus, live specimen from Rūdkhāneh-ye Fahlīān.

Figure 2.Variation in hypertrophied series of anterolateral (A, C, E) and anterodorsal (B, D, F) odontodes across three species. A Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes B Hisonotus oliveirai, paratype, NUP 9839, female, 25.8 mm SL, small odontodes C Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes D Hisonotus paresi, paratype, NUP 10928, male, 24.2 mm SL, small odontodes E Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes F Hisonotus insperatus, LBP 1316, 24.7 mm SL, large and conspicuous odontodes.

Figure 3.Pseudancistrus zawadzkii, live specimen, LBP 15045, paratype, female, 128.7 mm SL, Tapajós river, Pará State, Brazil.

Figure 2.a Neoplecostomus doceensis, MZUSP 115486, 101.1 mm SL, male, holotype, arrow showing the developed papillae between dentaries b Neoplecostomus botucatu, MZUSP 110364, 98.6 mm SL, male, paratype, lacking the papillae between dentaries c Neoplecostomus doceensis, MZUSP 115486, 101.1 mm SL (male), holotype, arrow showing the developed papillae series anterior to premaxillary teeth d Neoplecostomus selenae, MZUSP 51889, 101.7 mm SL, male, paratype, lacking the papillae series anterior to premaxillary teeth.

Australian freshwater, Duration 9 seconds

Indo-Pacific, Schooling, Duration 27 seconds

Aqua Silkeborg

Aqua, Silkeborg

Aqua Silkeborg

Aqua Silkeborg

Aqua Silkeborg

Kattegatcentret Grenå

Aqua Silkeborg

Aqua Silkeborg

Kattegatcentret Grenå

Aqua Silkeborg

Aqua Silkeborg