Lista anotada de la ictiofauna de las islas del golfo de California, con comentarios sobre sus afinidades zoogeográficas

An annotated checklist of the fish fauna associated to insular ecosystems in the Gulf of California is presented, which is composed of 615 species included in 3 classes, 37 orders, 121 families, and 338 genera. The list is based on fish collections and a critic analysis of related literature. The number of fish species associated to islands in the Gulf of California represents 67.5% of all species known for the entire Gulf (911 spp.) as well as 22.8% of the fish fauna from Mexico (2 692 spp.) and 50.3% for the Tropical Eastern Pacific (1 222 spp.). Zoogeographically, the fish species showed a higher affinity to the Sinuscalifornian (Cortez) province (71.2%), followed by the Mexican (60%), Panamic (54.8%) and Sandiegan (43.3%) provinces. Based on their distributional patterns, 10.2% of the species are endemic to the Gulf of California, 10.1% are circuntropical, 7.0% amphipacific, and 1.6% amphiamerican. Because of its great fish diversity, the insular area in the Gulf of California represents the richest insular complex in the Eastern Pacific.