Las publicaciones periodicas son uno de los principales organos de la comunicacion cientifica. Para este trabajo se analizaron 306 revistas de ciencia politica editadas en 14 paises de America Latina con el fin de detectar segmentaciones y diferenciaciones vinculadas a sus areas tematicas, su acceso-visibilidad y su entramado politico-institucional. A partir de la utilizacion de herramientas estadisticas identificamos que las revistas se insertan en cuatro circuitos de publicacion que representan diferentes practicas editoriales ancladas en los campos cientificos nacionales. Podemos afirmar que la estructura de la comunicacion cientifica politologica es muy debil. Mas de la mitad de las publicaciones circulan localmente constrenidas a sus instituciones editoras y con graves problemas de distribucion. Solo un pequeno numero de revistas ha logrado acceder a espacios de visibilidad regionales, y pocas a la corriente principal. ABSTRACT Periodicals are one of the main organs of scientific communication. For this paper, we have analysed 306 political science journals published in 14 Latin American countries in order to detect segmentations and differentiations related to their thematic areas, their access-visibility and their political-institutional framework. Using statistical tools, we identify that the journals are inserted in four publication circuits that represent different publishing practices anchored in the national scientific fields. We could affirm that the structure of scientific communication in political science is very weak. More than half of the publications circulate locally constrained to their publishing institutions and with serious problems of distribution. Only a small number of journals have been able to access regional visibility, and even less to mainstream spaces.