On the Venezuelan coast, the genus Clibanarius is represented by four species, of which there is an almost absolute ignorance about the ecology of C. antillensis. For this reason it was proposed to carry out this research whose main objective was to study its population dynamics in the town of Puerto Abajo. Fortnightly samples were sampled during the March-September 2014 period. The sample consisted of 1098 specimens: 556 (50,64%) females (♀), of which 335 were ovigerous and 542 (49,36%) males (♂) The sexual ratio was 1♀: 1♂. The lowest number of organisms was collected in the month of March and the largest in May and August. The t-student of the wet weight (t = 1,66; p> 0,05) shows that there are no affected differences between females and males, while the wet weight relationship with the shield length shows a negative allometric growth. The population parameters for ♂ and ...