Pterophyllum#P. leopoldi

Leopold scalar ( Pterophyllum leopoldi )

Leopold scalar, Pterophyllum leopoldi ( Gosse, 1963), and Leopold's Angelfish or pointed head Segelflosser called, is a cichlid from tropical South America, and the smallest of the currently recognized three Segelflosserarten.

System

The Belgian zoologist Gosse described this cichlasominen cichlid leopoldi as Plataxoides. He was the mistaken view that the genus name Pterophyllum had been awarded for 1825 Kirby at a Geradflüglergattung. The American ichthyologist Leonard P. Schultz told Gosse's opinion and pulled the cichlid genus Pterophyllum a part of a revision in favor of Plataxoides Castelnau 1855. In fact, the katydids genus in question is, however, written Pterophylla so that Pterophyllum Heckel 1840, the remains valid after the priority principle genus name. The site of the holotype is in the mouth of the Rio Solimões, about 90 kilometers above Manacapuru.

The genus name is a combination of pteron = fin, wing, sail and phyllum = leaf. The species name is a dedication in honor of the Belgian King Leopold III. , Who collected the type specimen.

Fins formula: Dorsal XI-XIII/18-24, Anal VI/19-28.

There are no synonym descriptions to Leopold's Angelfish. In the Pterophyllum dumerilli variously given as a synonym ( Castelnau, 1855) is clearly a Pterophyllum scalare from Para ( Belem ).

The habitats of the High Segelflossers ( Pterophyllum altum ) and the Segelflossers ( Pterophyllum scalare ) are geographically separated. A sympatric occurrence is excluded. Nevertheless exist between two species many transitional forms and morphological similarities to document such a close relationship that it is easy to combine both as subspecies of a single species. With Leopold Segelflosser situation is exactly reversed. The distribution is mainly in the scalare Pterophyllum of, but both types can be used alone separate with conservative taxonomic methods very well. Paepke refers in this context to the very inconstant conditions in which by floods and lows constantly changing habitat Amazonia, thereby habitats displaced and scattered populations and mixed.

Features

About the height reached in nature are not always sure of. However, the species remains significantly smaller than Pterophyllum scalare and also differs from this species and of Pterophyllum altum by the not so high in relation to the body length disc, the pointed head ending without saddle-shaped notch and the resulting straight to rounded front profile. Specifically, a under the approach of the soft dorsal fin rays lying in the fourth vertical strap dark brown to black spot. Leopold's Angelfish also has the largest flank scales (26 to 30) and compared to the two other species of the lowest Flossenzählwerte.

Ecology

Leopold's Angelfish is distributed by the Rio Solimões in the Amazon basin to the Atlantic coast. Other deposits exist in the catchment of the Essequibo (Guyana ). Exact details of the conditions in the previous localities are not available. Even Leopold's Angelfish lives from which dissolve during the breeding season pairs in small social groups. It is a spawning substrate in a vertical open breeder who takes care of his offspring as parents family

Relevance to humans

Leopold's Angelfish is a sought-after specialists in aquarium fish, which is seldom regularly acted as a tomboy and bred by a few enthusiasts. In contrast to Pterophyllum scalare (sensu lato ), there are no breeding forms.

Swell

• Gosse, J.-P. (1963 ): Description de deux cichlides nouveaux de la region amazonienne. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique v. 39 (no. 35): 1-7, Pl 1
• Keith, P., P.-Y. Le Bail and P. Planquette (2000): Atlas of poissons d' eau douce de Guyane. Tome 2 - fascule I. Batrachoidiformes, Mugiliformes, Beloniformes, Cyprinodontiformes, Synbranchiformes, Perciformes, Pleuronectiformes, Tetraodontiformes. 1-286.
• Paepke, H.-J. (2003): Angelfish ( 2 Auflg. ). Westarp Science Publishing Society, Hohenwarsleben, ISBN 3-89432-845-2.
• Reis, RE, SO Kullander & CJ Ferraris, Jr. ( 2003): Check list of the freshwater fishes of South and Central America. CLOFFSCA. 2003: i -xi 1-729.
• Schindler, I. ( 2003): Variation of height of Pterophyllum scalare ( Schultze in Lichtenstein, 1823) ( Telesotei: Labroidei: Cichlidae ). Journal of Ichthyology v. 6 (no. 1-2): 73-85.
• Stawikowski, R. & U. Werner (1998 ): The cichlids of America, Vol 1 Eugen Ulmer Verlag, Stuttgart, ISBN 3-8001-7270-4.
• Walschaerts, L. (1987 ): Catalogue of the types de poissons recents de l'Institut Royal des Sciences naturelles de Belgique. Documents Travail No. 40: 1-67.