Farlowella

Ballen, Gustavo A. & Mojica, José Iván, 2014, A new trans-Andean Stick Catfish of the genus Farlowella Eigenmann & Eigenmann, 1889 (Siluriformes: Loricariidae) with the first record of the genus for the río Magdalena Basin in Colombia, Zootaxa 3765 (2), pp. 134-142 : 140-141

Key to the species of Farlowella from Colombia

The following key is partially modified from Retzer & Page (1996), and based on species reported from Colombia in the literature ( Retzer & Page, 1996; Galvis et al., 1997; Maldonado-Ocampo, et al., 2008).

1 Five rows of anterior lateral plates........................................................................ 2

- Four rows of anterior lateral plates........................................................................ 3

2 Anterior plates on median row hexagonal in shape.................................................... F. gracilis

- Anterior plates on median row diamond-shaped...................................................... F. nattereri

3 Two complete rows of plates on abdomen.................................................................. 4

- Three complete rows of plates on abdomen................................................................. 9

4 Anterior plates on median row diamond-shaped.................................................. F. yarigui n. sp.

- Anterior plates on median row hexagonal in shape.......................................................... 5

5 Very dark vermiculations on head and snout........................................................ F. amazona

- No dark vermiculations on head and snout................................................................. 6

6 Head with raised mid-dorsal ridge............................................................ F. colombiensis

- Head nearly flat..................................................................................... 7

7 Eyes raised on head, lateral margins of snout nearly straight...................................... F. platorhynchus

- Eyes set at the level of dorsal surface of head, lateral margins of snout noticeably concave............................ 8

8 Breeding odontodes on preorbital ridge............................................................... F. a c us

- No breeding odontodes on preorbital ridge............................................................ F. vittata

9 Breeding odontodes on sides of head, plates in second lateral row thickened and forming a keel....................... 10

- Breeding odontodes on sides of head absent, plates in second lateral row normal and not forming a keel.............. 11

10 Adult males with body depth less than snout-mouth length............................................ F. taphorni

- Adult males with body depth greater than snout-mouth length........................................ F. curtirostra

11 Wide caudal peduncle plates.................................................................. F. oxyrrhyncha

- Narrow caudal peduncle plates.......................................................................... 12

12 Median row of anterior lateral plates diamond-shaped.............................................. F. mariaelenae

- Median row of anterior lateral plates hexagonal....................................................... F. s m i t h i