Heptapteridae

Imparfinis pristos Mees & Cala, 1989: 391, fig. 3. Holotype (Fig. 58): ICN-MHN 1401 (31.3 mm SL), Colombia, Vichada, second tributary of right margin, upriver from mouth of Tomo River, tributary of Orinoco River; P. Cala, 22 Feb 1972. Paratypes: ICN-MHN 1402 (4, 24.2–29.9 mm SL), collected with the holotype .

Imparfinis pseudonemacheir Mees & Cala, 1989: 387, fig. 2. Paratypes (Fig. 59) ICN-MHN 1403, (4, 25.73– 31.35 mm SL). Colombia, Meta, Puerto López, River Metica drainage, Guayuriba River, Meta River system; P. Cala, 20 Feb 1972 .

Medemichthys guayaberensis Dahl, 1961: 491, unnumbered figure. Paratypes (Fig. 60): ICN-MHN 442 (8, 22.8– 38.1 mm SL), Colombia, Meta, creek at Campo Thompson, Guayabero River; G. Dahl, Feb 1959.

Remarks: All 18 paratypes were loaned to John G. Lundberg in March 1988 and were found in ANSP (Mariangeles Arce H., pers. comm.). In 2016, eight specimens were returned to ICN-MHN. A label accompanying the specimens from Flávio A. Bockmann indicates 16 specimens, from which 2 were cleared and stained (C&S). Bockmann & Ferraris (2005) stated that some paratypes were donated by the first author to ANSP (2 specimens, ANSP 180338) and to LIRP (3 specimens, LIRP 5180). Currently treated as a junior synonym of Nemuroglanis mariai (Schultz, 1944) (Bockmann & Ferraris, 2005).

Pimelodella figueroai Dahl, 1961: 498, unnumbered figure. Paratypes (Fig. 61): ICN-MHN 2900 (12, 44.9–106.4 mm SL), Colombia, Meta, Serranía de la Macarena, Caño Losada, Guayabero River; G. Dahl, 9–16 Mar 1959.

Pimelodella floridablancaensis Ardila-Rodríguez, 2017: 3, fig. 1. Paratype (Fig. 62): ICN-MHN 13739 (ex CAR02) (1, 98.60 mm SL), Colombia, Santander, Floridablanca, quebrada Aranzoque, en la parte baja del puente del Limoncito parte alta del río Lebrija, Magdalena river Basin 7°04’11”N, 73°05’52”W, 925 m asl.; C. Ardila- Rodríguez, 27 Mar 1988 .

Rhamdia lehmanni Dahl, 1961: 487, unnumbered figure. Paratypes (Fig. 66): ICN-MHN 358 (2, 82.0– 95.5 mm SL), Colombia, Meta, Caño Losada, Guayabero River, ca. 1500 m from Campo Thomson No. 1.; G. Dahl, Feb 1959.

Remarks: currently treated as junior synonym of Rhamdia quelen (Quoy & Gaimard, 1824) (Silfvergrip, 1996) .