Pseudorca crassidens check for this species in other resources - stranding - Pseudaliidae check for this species in other resources - Stenurus globicephalae check for this species in other resources - taxonomy - Uruguay"/>
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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 2, 2002, pp. 221-225
Bioline Code: oc02042
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 2, 2002, pp. 221-225

 en Stenurus globicephalae check for this species in other resources Baylis et Daubney, 1925 (Nematoda: Pseudaliidae) from a False Killer Whale, Pseudorca crassidens check for this species in other resources (Cetacea: Delphinidae), Stranded on the Coast of Uruguay
María Inés Zylber; Gabriela Failla & Alfredo Le Bas

Abstract

Stenurus globicephalae check for this species in other resources Baylis et Daubney, 1925 (Nematoda: Pseudaliidae) was found in the cranial air sinuses of a false killer whale, Pseudorca crassidens check for this species in other resources (Owen), stranded on the coast of Uruguay in 1999. Although this species has been reported once in P. crassidens from the North Atlantic, this is the first record for South America. A total of 920 specimens were obtained, of which 663 were females (body length: 4.34 ° 0.45 cm) and 257 were males (2.99 ° 0.18 cm). Morphometric details are presented for S. globicephalae check for this species in other resources in this host, which do not show significant differences from those parasitizing Globicephala melas check for this species in other resources (Traill), but are distinct from those parasitizing Peponocephala electra check for this species in other resources (Gray). The host's skull revealed loss of osseous mass with the disappearance of the left zygomatic arch, and the left jaw had three osseous fenestrations in the region related to the organ of acoustic reception. These lesions support the hypothesis that this infection, known as stenurosis, was related to the stranding.

Keywords
Pseudorca crassidens check for this species in other resources - stranding - Pseudaliidae check for this species in other resources - Stenurus globicephalae check for this species in other resources - taxonomy - Uruguay

 
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