Study of the distribution of the genus Callinectes

The Mexican Republic is located between the geographical coordinates: 14° 32'' 27 South 32° 43'' 06 North 86° 42'' 36 Southeast and 118° 27'' 24 West. There are 17 coastal states: Baja California Baja California Sur Sonora Sinaloa Nayarit Jalisco Colima Michoacán Guerrero Oaxaca Chiapas Tamaulipas Veracruz Tabasco Campeche Yucatán and Quintana Roo; in such a way that the Mexican coast occupies an approximate surface of 1020965 km2 covering about 57.2% of the total surface of the territory. Climatic variability involves tropical to subtropical conditions; arid and semi-arid climates predominate in the north and humid and sub-humid climates in the south. Approximately 37% of the territory corresponds to the sub-humid climate which is present in the coastal plains of the Pacific Gulf of Mexico and northeast of the Yucatan Peninsula. Genus Callinectes: Decapoda: Brachyura: Portunidae. Swimming crabs wide distribution in the Atlantic and Pacific Ocean life cycle with planktonic and benthic stages ecological and economic importance. Pacific Ocean: C. arcuatus C. bellicosus C. toxotes; Gulf of Mexico: C. sapidus and C. rathbunae.