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Caiman yacare (DAUDIN, 1801)

IUCN Red List - Caiman yacare - Least Concern, LR
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Higher TaxaAlligatoridae, Crocodylia, crocodiles (alligators)
SubspeciesCaiman yacare medemi DONOSO-BARROS 1974
Caiman yacare yacare (DAUDIN 1802) 
Common NamesE: Yacare caiman
G: Südlicher Brillenkaiman
Portuguese: Jacaré-do-Pantanal, Jacaré-do-Paraguai 
SynonymCrocodilus yacare DAUDIN 1801: 407
Jacaretinga punctulatus SPIX 1825
Alligator punctulatus — DUMÉRIL & BIBRON 1836: 91
Champsa vallifrons NATTERER 1840
Jacare longiscutata GRAY 1862
Jacare ocellata GRAY 1862
Jacare multiscutata GRAY 1867
Alligator punctulatus — GÜNTHER 1885: 21
Caiman sclerops BOULENGER 1889 (partim)
Caiman yacare — SCHMIDT 1928
Jacaretinga crocodilus yacare — WERNER 1933
Caiman crocodilus yacare — MÜLLER & HELLMICH 1936
Caiman crocodilus matogrossoiensis FUCHS 1971 (nomen nudum fide WERMUTH & MERTENS 1977)
Caiman crocodilus paraguayiensis FUCHS 1971 (nomen nudum fide WERMUTH & MERTENS 1977)
Caiman crocodilus matogrossiensis — FUCHS 1974 (fide MEDEM 1983)
Caiman crocodilus paraguaiensis — FUCHS 1974 (fide MEDEM 1983)
Caiman crocodilus matogrossiensis — WERMUTH & MERTENS 1977: 137
Caiman crocodilus yacare — WERMUTH & MERTENS 1977: 138
Caiman yacare — CEI 1993
Caiman yacare — NICKEL & AULIYA 2004
Caiman crocodilus yacare — MARTIN 2008

Caiman yacare medemi DONOSO-BARROS 1974
Caiman yacare medemi — NICKEL & AULIYA 2004 
DistributionN Argentina (Formosa), S Brazil, S Bolivia, Paraguay

medemi: Bolivia, Beni; Type locality: “Laguna Suárez, proximidades de Trinidad, Departamento del Beni, Bolivia”.

Type locality: Paraguay.  
Reproductionoviparous. Temperature‐dependent sex determination (TSD) fide Nemesházi & Bókony 2023. 
TypesHolotype: unlocated (fide King & Burke 1989)
Holotype: MZUC (Museo Zoologico, Instituto Biologia, Universidad de Concepción, Chile) 2597, juvenile; paratype: Museo Argentina Ciencias Naturales, Buenos Aires [medemi] 
Diagnosis 
CommentSubspecies: Considered as subspecies of Caiman crocodilus by older authors.

Synonymy following that of CEI 1993 and KING & BURKE 1989.

Distribution: Fuchs (1971) improperly displaced the type locality of C. yacare to Bolivia in his description of paraguayiensis. 
EtymologyNamed after Guarani yacaré, vernacular name of a crocidile. (DAUDIN 1801, Esteban Lavilla, pers. comm., April 2024) 
References
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  • Brazaitis, Peter; Rebólo, George H.;Yamashita, Carlos 1998. The distribution of Caiman crocodilus crocodilus and Caiman yacare populations in Brazil. Amphibia-Reptilia 19 (2): 193-201 - get paper here
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