Pygopristis denticulata, also known as the lobetoothed piranha, is a species of piranha.[1] It is a rare South Americancharaciform fish found in the Orinoco River basin, rivers of the northern and eastern Guiana Shield, and tributaries of the lower Amazon River.[2] Like other piranhas, it is found in freshwater,[1] with specimens of this species typically found in acidic clearwater or blackwater environments. Despite their ferocious reputation, many piranhas have broader diets;[1] this species usually feeds on aquatic insects, small fish, and fruits.[3]
Pygopristis fumarius J. P. Müller & Troschel, 1845
P. denticulata has pentacuspid teeth and a middle cusp that is usually only slightly larger than the other cusps. This is unlike other piranhas, which have tricuspid teeth with a larger middle cusp, making the teeth appear triangular.[4] Within the family Serrasalmidae, P. denticulata is more closely related to Catoprion than it is to the majority of species traditionally considered true piranhas.[4]
P. denticulata grows to about 20.0 cm (7.9 in) in total length.[2] It has 62 chromosomes.[4]
Referencesedit
^ abcFink, William L. (1989-01-01). "Ontogeny and phylogeny of shape and diet in the South American fishes called piranhas". Geobios. Ontogenèse Et Évolution. 22: 167–172. doi:10.1016/S0016-6995(89)80017-8. ISSN 0016-6995.
^ abFroese, Rainer; Pauly, Daniel (eds.) (2007). "Pygopristis denticulata" in FishBase. July 2007 version.
^Machado-Allison, A. and W. Fink (1996). Los Peces Caribes de Venezuela. Diagnosis, claves, aspectos ecológicos y evolutivos. Universidad Central de Venezuela, CDCV. (Colección Monografías), Caracas, ISBN980-00-0967-1, 149p.
^ abcFreeman, Barbie; Nico, Leo G.; Osentoski, Matthew; Jelks, Howard L.; Collins, Timothy M. (2007). "Molecular systematics of Serrasalmidae: Deciphering the identities of piranha species and unraveling their evolutionary histories" (PDF). Zootaxa. 1484: 1–38. doi:10.1046/j.1439-0469.2000.384132.x.
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pygopristis, denticulata, also, known, lobetoothed, piranha, species, piranha, rare, south, american, characiform, fish, found, orinoco, river, basin, rivers, northern, eastern, guiana, shield, tributaries, lower, amazon, river, like, other, piranhas, found, f. Pygopristis denticulata also known as the lobetoothed piranha is a species of piranha 1 It is a rare South American characiform fish found in the Orinoco River basin rivers of the northern and eastern Guiana Shield and tributaries of the lower Amazon River 2 Like other piranhas it is found in freshwater 1 with specimens of this species typically found in acidic clearwater or blackwater environments Despite their ferocious reputation many piranhas have broader diets 1 this species usually feeds on aquatic insects small fish and fruits 3 Pygopristis Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Characiformes Family Serrasalmidae Genus PygopristisJ P Muller amp Troschel 1844 Species P denticulata Binomial name Pygopristis denticulata G Cuvier 1819 Synonyms Serrasalmus denticulatusG Cuvier 1819 Serrasalmus punctatusJardine 1841 Pygopristis fumariusJ P Muller amp Troschel 1845 P denticulata has pentacuspid teeth and a middle cusp that is usually only slightly larger than the other cusps This is unlike other piranhas which have tricuspid teeth with a larger middle cusp making the teeth appear triangular 4 Within the family Serrasalmidae P denticulata is more closely related to Catoprion than it is to the majority of species traditionally considered true piranhas 4 P denticulata grows to about 20 0 cm 7 9 in in total length 2 It has 62 chromosomes 4 References edit a b c Fink William L 1989 01 01 Ontogeny and phylogeny of shape and diet in the South American fishes called piranhas Geobios Ontogenese Et Evolution 22 167 172 doi 10 1016 S0016 6995 89 80017 8 ISSN 0016 6995 a b Froese Rainer Pauly Daniel eds 2007 Pygopristis denticulata in FishBase July 2007 version Machado Allison A and W Fink 1996 Los Peces Caribes de Venezuela Diagnosis claves aspectos ecologicos y evolutivos Universidad Central de Venezuela CDCV Coleccion Monografias Caracas ISBN 980 00 0967 1 149p a b c Freeman Barbie Nico Leo G Osentoski Matthew Jelks Howard L Collins Timothy M 2007 Molecular systematics of Serrasalmidae Deciphering the identities of piranha species and unraveling their evolutionary histories PDF Zootaxa 1484 1 38 doi 10 1046 j 1439 0469 2000 384132 x nbsp This Characiformes related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Pygopristis amp oldid 1219137562, wikipedia, wiki, book, books, library,
