Corydoras punctatus

Super Group: 
Opisthokonta
Phylum: 
Chordata
Sub-Phylum: 
Vertebrata
Class: 
Actinopteri
Order: 
Siluriformes
Family: 
Callichthyidae
Sub-Family: 
Corydoradinae
Genus: 
Corydoras
Species: 
punctatus
Authority: 
Bloch 1794
Synonym(s): 
Cataphractus punctatus (Bloch, 1794)
Corydoras geoffroy (Lacepede, 1803)

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: Cataphractus punctatus Bloch. A species resembling C. elegans and C. trilineatus in form and in coloration, the dorsal fin blackish superiorly and some spots along the middle of the side; caudal barred. Surinam.

Body_male_length: 6.0 cm
Body_female_length: 6.0 cm
Sequence rag1: AY423858 (Sullivan et al. 2006)

Etymology

Corydoras: Greek, kory = helmet + greek, doras = skin

Type species

The type species of the genus Corydoras is Corydoras geoffroyi Lacépède, 1803 (= Cataphractus punctatus Bloch, 1794), by monotypy.

Type illustration / Type locality / Type specimen

Type illustration: Naturgeschichte der ausldndischen Fische. Titlekupfer zu Dr Bloch_s fischwerck. Pl. 377 (fig. 2).
Type locality: Suriname [species occurs in Brokopondo, Suriname River system, Compagnie Creek].
Lectotype (designated by Nijssen & Isbrücker, 1975: 63), ZMB 3149, si 41.8 mm, Surinam, coll. M. E. Bloch; — 1 paralectotype, ZMB 22228, si 33.9 mm, same data as lectotype.

Ecology

Habitat: river
Habitat: South America, Suriname River basin in Suriname and Iracoubo River basin in French Guiana.
Temperature: 22-26 °C
pH: 6.0-8.0
Sociability_adults: gregarious
Substrate: water
Substrate: sand
Salinity: freshwater
Depth: epipelagic
Oxygen_level: oxic
Migratory: no

Life cycle

Longevity: more than 3 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 around 5mm larger than males, wider.

Feeding behaviour

Omnivorous

Mode of locomotion

Motility: motile_swimming

Reference(s)

Observation site(s)

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