Species Structure of the Gobiid Fish Gillichthys mirabilis from Coastal Sloughs of the Eastern Pacific

Abstract

A recent issue of Systematic Zoology (1960, vol. 9, nos. 3, 4 ) was ' devoted entirely to a symposium entitled "The Biogeography of Baja California and Adjacent Seas." One recurring theme was the affinity between forms occurring on the Pacific Coast in the Californian province (Hubbs, 1960: 134), and those in the northern part of the Gulf of California. Between these areas, in the main part of the Gulf, the fauna was said to differ, being primarily Panamic in origin (Garth, 1960; Hubbs, 1960; Walker, 1960) .