Four new species of eastern tropical Pacific jawfishes (Opistognathus: Opistognathidae)
Rev. biol. trop
;
51(2): 529-550, jun. 2003. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-365944
RESUMEN
Three of four new jawfishes described herein have sexually dimorphic jaws and dichromatic maxillary markings O. smithvanizi, with a simple nasal cirrus, buccal pigmentation and other traits similar to members of the O. macrognathus group, is known only from Isla del Caño, a continental shelf island off southern Costa Rica; O. fossoris, with a multifid nasal cirrus, a broad dorsal membranous subopercular flap and a black spot on tips of first dorsal-fin spines lives in the Gulf of California and is a sister-species of O. galapagensis, the maxilla of O. walkeri terminates in a flexible scimitar-shaped lamina in adults of both sexes, but is longer in males, the species lacks nasal cirri and is also restricted to the Gulf of California. Opistognathus brochus is a small species with dark speckling on head and body, and several dark blotches along the dorsal fin and two bars on the tail; it is found in moderately deep water on the Costa Rican coast and Gulf of California. Opistognathus mexicanus is placed in the synonymy of O. punctatus. Opistognathus galapagensis, O. rhomaleus and O. fenmutis are recorded for the first time from Costa Rica and a description of the latter is given and an identification key and summary table are provided for all known eastern Pacific species of Opistognathus.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Caracteres Sexuais
/
Peixes
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
País/Região como assunto:
América Central
/
Costa Rica
Idioma:
Inglês
Revista:
Rev. biol. trop
Assunto da revista:
Biologia
/
Medicina Tropical
Ano de publicação:
2003
Tipo de documento:
Artigo
País de afiliação:
Costa Rica
/
Estados Unidos
Instituição/País de afiliação:
Natural History Museum of Los Angeles County/US
/
Universidad de Costa Rica/CR
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