Four new species of eastern tropical Pacific jawfishes (Opistognathus: Opistognathidae)
Rev. biol. trop
;
51(2): 529-550, jun. 2003. ilus, tab
Article
Dans Anglais
| 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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Caractères sexuels
/
Poissons
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
Pays comme sujet:
Amérique centrale
/
Costa Rica
langue:
Anglais
Texte intégral:
Rev. biol. trop
Thème du journal:
Biologie
/
Médecine tropicale
Année:
2003
Type:
Article
Pays d'affiliation:
Costa Rica
/
États-Unis d'Amérique
Institution/Pays d'affiliation:
Natural History Museum of Los Angeles County/US
/
Universidad de Costa Rica/CR
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