Corydoras metae
Diagnosis
Diagnosis_Genus: Corrydoras Lacépède. De grandes lames de chaque côté du corps et de la queue ; la tête couverte de pièces larges et dures ; la bouche à l’extrémité du museau ; point de barbillons ; deux nageoires dorsales ; plus d’un rayon à chaque nageoire du dos.
Diagnosis_species: Corydoras metae Eigenmann. Head 3.25; depth 2.33; D. I, 8; A. I, 6; plates H; interorbital 2+ in the head; eye 4; snout nearly half length of head; suborbital about half length of eye; lower maxillary barbel just reaching gill-opening; dorsal spine equals length of head less opercle, base of dorsal a little greater than its distance from the adipose; pectoral spine very little shorter than head, extending beyond middle of ventrals; humeral shields widely separated below, not encroaching on the breast or belly; a dark band across nape, through eyes to lower edge of head; a black band across end of caudal peduncle continued forward along the middle of back and expanded on the dorsal to cover the entire fin except the distal .4 of the last seven rays. Otherwise without markings.
Body_male_length: 5.0 cm
Body_female_length: 5.0 cm
Sequence NADH: AY307233 (Shimabukuro-Dias et al. 2004)
Sequence 12S: AY307268 (Shimabukuro-Dias et al. 2004)
Sequence 16S: AY307303 (Shimabukuro-Dias et al. 2004)
Etymology
Etymology: Corydoras: Greek, kory = helmet + greek, doras = skin. In this case it was incorrectly used to mean armour (cuirasse) instead of skin in allusion to the dual rows of plates that run along the flanks of this genus. Named after the Rio Meta, from which it was collected.
Type species
The type species of the genus corydoras is Corydoras geoffroy (Lacépède, 1803).
Type illustration / Type locality / Type specimen
Holotype, CAS (ex IU 13451), si 38.0 mm, Colombia-Rio Meta, Barrigón (E. of Bogota), coll. Gonzales.
Type locality: Barrigona [Berrigón], Río Meta, Colombia.
Ecology
Habitat: river
Habitat: South America, Meta River basin in Colombia.
Temperature: 22-26 °C (22°C for sexual reproduction)
pH: 6.0-8.0 (7.4 for sexual reproduction)
Sociability_adults: gregarious
Substrate: water
Substrate: S=sand
Substrate: round gravel
Sociability_adults: gregarious
Salinity: freshwater
Depth: Epipelagic
Migratory: no
Life cycle
Longevity: more than 3 years (5 years)
Reproduction_mode: sexual
Fecundity: The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then the female swims to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached.
Sexual_dimorphism: females have a larger underbelly, when viewed from the top will look a lot wider than a male. Males are smaller in length than females.
Feeding behaviour
Mode of locomotion
Original description
Reference(s)
Attached phylogeny
Observation site(s)
SYMBIONTS
Association with... | Region origin | Name of site | In reference... |
---|---|---|---|
Piscinoodinium pillulare | Université of Stirling | (1998) |