Aspidoras kiriri, Oliveira, Zanata, Tencatt & Britto, 2017

Vita, George, Ferreira, Marco Tulio Oliveira, Tavechio, Washington & Guidelli, Gislaine, 2020, Fishes from the rio da Dona, a threatened environment in the Recôncavo Sul basin, Bahia, Brazil, Papéis Avulsos de Zoologia 60, pp. 1-10 : 10

APPENDIX 2. IDENTIFICATION KEY FOR FISH SPECIES OF THE RIO DA DONA BASIN

1. Body covered by skin or bony plates,scales absent ................................................................................................................................................................... 2

1’. Body covered by scales..............................................................................................................................................................................................................6

2. Body partially or completely covered by bony plates................................................................................................................................................................. 3

2’. Body without bony plates .........................................................................................................................................................................................................5

3. Two longitudinal series of bony plates on the lateral of body;mouth subterminal............................................................................................... Aspidoras kiriri

3’. Three or more longitudinal series of bony plates on the lateral of body;mouth ventral and sucker-like ................................................................................... 4

4. Absence of tuft of denticles on the occiput; scapular bridge non-exposed and weakly covered by dispersed small plates; ventral surface weakly covered by small plates; body and fins with large dark rounded spots bigger than those on the head........................................................................... Hypostomus unae

4’. Tuft of denticles present; scapular bridge exposed and entirely covered by odontodes; ventral surface covered by large lateral plates and numerous small plates grouped medially; presence of a light brown strip from snout tip to caudal fin,with four dark vertical bars on the trunk and fin rays with small dark spots...................................................................................................................................................................................................... Parotocinclus cristatus

5. Presence of odontodes on the opercle;absence of pungent spine on the fins;adipose fin absent......................................................... Trichomycterus bahianus

5’. Opercle without odontodes;presence of pungent spine on pectoral fins;adipose fin present............................................................................ Rhamdia quelen

6. Anteriormost elements of the dorsal and anal fins as spines.....................................................................................................................................................7

6’. Dorsal and anal fins without spines......................................................................................................................................................................................... 10

7. Upper branch of the first gill arch with lobe........................................................................................................................................ Geophagus gr. brasiliensis

7’. Upper branch of the first gill arch without lobe......................................................................................................................................................................... 8

8. Four spines on the anal fin; oval dark blotch in the middle body................................................................................................... Cichlasoma sanctifranciscense

8’. Three spines on the anal fin;dark blotch absent ....................................................................................................................................................................... 9

9. Spines of the dorsal fin separated from the soft-branched rays by a notch;presence of an ocellus-shaped caudal blotch....................................... Cichla pinima

9’. Dorsal fin without a notch;caudal blotch absent ............................................................................................................................................. Coptodon rendalli

10. Lateral line absent;protractible premaxilla;adipose fin absent ..............................................................................................................................................11

10’. Lateral line partially or completely present;non-protractible premaxilla;adipose fin usually present....................................................................................12

11. Males and females with a single dark blotch on the lateral of the body,anteriorly to dorsal fin;males with same color pattern as females...... Poecilia vivipara

11’. Females without a dark blotch on the lateral of the body;males with different color pattern than females (green,blue and/or red blotches in live specimens), and may present more than one dark blotch on the lateral of the body........................................................................................................ Poecilia reticulata

12. Only conical and canine teeth present;adipose fin absent;rounded caudal fin............................................................................................ Hoplias malabaricus

12’. Conical,incisive,truncated and/or multicuspid teeth;adipose fin present;caudal fin bifurcated or emarginated...................................................................13

13. Cranium without frontal fontanelle; tiny subterminal mouth;“3”-shaped bar on caudal fin present............................................... Characidium aff. timbuiense

13’. Frontal fontanelle present;mouth large;“3”-shaped bar on caudal fin absent .......................................................................................................................14

14. Incisive teeth;three or four teeth on each side of the premaxilla and the dentary;gill membranes attached to the isthmus ....................... Leporinus bahiensis

14’. Conical and/or multicuspid teeth;more than four teeth on the premaxilla and dentary......................................................................................................... 15

15. Premaxilla with a single tooth series;sharp tricuspid teeth on both premaxilla and dentary;abdomen compressed with a keel of spines preceding pelvic fins ................................................................................................................................................................................................................. Serrasalmus brandtii

15’. Premaxilla with two tooth series;teeth variably shaped;abdomen non-compressed and without keel of spines .................................................................. 16

16. Lateral line incomplete ........................................................................................................................................................................................................... 17

16’. Lateral line complete ..............................................................................................................................................................................................................18

17. Pseudotympanum present;humeral blotch absent;dark conspicuous caudal-peduncle blotch usually present................................. Hyphessobrycon parvellus

17’. Pseudotympanum absent;faint vertically elongate humeral blotch present;caudal-peduncle blotch absent.............................. Hyphessobrycon itaparicenscis

18. Well-defined and horizontally elongated humeral blotch;maxillary teeth absent........................................................................................... Astyanax lacustris

18’. One or two vertically elongated humeral blotches; at least one maxilla tooth present ...........................................................................................................19

19. One humeral blotch with straight edges;one tooth on the maxilla;24-28 branched rays on the anal fin................................................. Astyanax aff. fasciatus

19’. Two humeral blotches, being the anteriormost comma-shaped,wider dorsally;up to two maxillary teeth;18-20branched rays on the anal fin...................... .................................................................................................................................................................................................................... Astyanax burgerai