Biotodoma cupido - Greenstreaked eartheater

Identification Key for Biotodoma cupido:

Biotodoma cupido Heckel, 1840

1 ”- Absence of a dark spot at the posterior end of the operculum ...........3

3 ”- Arrangement of the“ American ”type of lips, that is, the skin of the tooth folds over that of the posterior end of the premaxilla ..................................6

6 ”- More than a series of teeth in the jaws, all mobile teeth (depressible) ............................................................................................................................7

7 ”- First branchial arch with short and less numerous tracks (40 or less tracks) ...............................................................................................................9

9 ”- Scales of the lateral line with a sensory channel .................................11

11 '- Bone and skin expansion of the upper region of the first branchial arch forming a well-developed lobe .....................................................................12

12 '- Oval or rectangular spot on the flanks, displaced dorsally and posteriorly, positioned on (and partially above) the end of the anterior branch of the lateral line ..................................................................Biotodoma cupido

The Biotodoma is characterized by a vertical black band that extends through the branchial cover and crosses the eyes. A large black dot located on the lateral line is also characteristic. The lips are not full and the mouth is very small. They are small fish, up to 10 cm long.

The ideal parameters to maintain the Biotodoma are: pH 5 - 6.5, temperature 28 ° C (82 ° F) and GH below 10. They are fish sensitive to nitrate levels, therefore it is necessary to make weekly changes of the aquarium water.

There are two species described: Biotodoma wavrini and Biotodoma cupido.

In Biotodoma cupido. the body is relatively compact and the spot is located above the upper lateral line, while in Biotodoma wavrini the body is elongated and the spot is above or below the upper lateral line.

Identification Key Biotodoma:
1. Generally high body (almost higher than the length) ……...............6
6. Thin lips ……………………………………………...................................7
7. Presence of a fleshy lobe at the top of the first branchial arch …...8
8. Very high dorsal profile, short snout and small mouth ……………..9
9. The longitudinal series with scales of 27-29; scales on the lateral line 17-19 / 12-15 ……………………………………....……………Biotodoma cupido
9 ". The longitudinal series with scales of 30-32; scales on the lateral line 16-19 / 14-17 ………....................................…………Biotodoma wavrini

Biotodoma cupido Heckel, 1840 

According to FISHBASE:

Kingdom = Animalia ; Phylum = Chordata ; Class = Actinopterygii ; Order = Perciformes ; Family = Perciformes ; Genus =  Biotodoma.

Distribution: South America: Amazon River basin, in Peru, Bolivia and Brazil; Essequibo River in Guyana.

Size - Maximum Length: 11,7 cm.

Synonyms: Biotodoma cupido, Geophagus cupido.

Common name of Biotodoma cupido: Acará-Chibante, Acará-Salema, Juruparipindá, Acará-cupido, Cupid Cichlid, Greenstreaked eartheater (EUA).

Reference: Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.

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