Corydoras schwartzi

Super Group: 
Opisthokonta
Phylum: 
Chordata
Sub-Phylum: 
Vertebrata
Class: 
Actinopteri
Order: 
Siluriformes
Family: 
Callichthyidae
Sub-Family: 
Corydoradinae
Genus: 
Corydoras
Species: 
schwartzi
Authority: 
Rössel 1963
Synonym(s): 
Corydoras schwartzi surinamensis

Diagnosis

Diagnosis_genus: Corydoras 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: presence of two or three longitudinal black stripes on flanks [...] absence of an oblique or vertical black blotch across the eye [...] ventral surface of trunk naked or covered by sparse platelets.
Body_male_length: 5.0 cm
Body_female_length: 6.0 cm

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 for Mr. Schwartz.

Type species

The type species of the genus Corydoras is Corydoras geoffroy (Lacépède, 1803).

Type illustration / Type locality / Type specimen

Holotype, SMF 6425, sl 34.5 mm, Brazil-Amazonas, mouth of Rio Purus, coll. W. Schwartz, 1962; — 11 paratypes, SMF 6426/6436, sl 22.6-32.2 mm, same data as the holotype.
Type locality: Mouth of Rio Purus, Amazonas, Brazil.

Ecology

Habitat: river
Habitat: South America, Purus River basin in Brazil.
Temperature: 22-26 °C
pH: 6.0-7.0
Sociability_adults: gregarious
Substrate: water
Salinity: freshwater
Depth: epipelagic
Migratory: no

Life cycle

Longevity: more than 3 years (15-25 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.Breeding is similar to other Corys, the female carries a few of the eggs between her pelvic fins while the male fertilizes them. She then finds a safe spot, usually heavy with vegetation, and hides them. They will continue this process until around 100 eggs have been laid. The Schwartz Cory is not often bred in captivity.
Sexual_dimorphism: female Schwartz's Cory are bigger and heavier than males and has rounder bellies which make their faces sit up off of the subtrate when resting. Males have thicker pectoral fin rays.

Feeding behaviour

Omnivorous

Mode of locomotion

Motility: motile_swimming

Reference(s)

Observation site(s)

SYMBIONTS

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