Phlebotomus de El Salvador (Diptera, Psychodidae)

by Rosabal, R., Trejos, A.
Published 1964

Über die Spontaninfektion mit Encephalitozoon cuniculi bei weissen Maeusen

by Ruiz, Armando
Published 1964

Prefacio: Ecosistemas Acuáticos de Costa Rica III

by Vargas Zamora, José A.
Published 2004

Reimarochloa (Gramineae: Panicoideae) en América Central: notas fitogeográficas y citológicas

by Pohl, Richard W., Heer, Hollys E.
Published 1974

Tejido vascular secundario en yemas de Blechnum vivipaum (Pteridophyta)

by Montiel, Mayra B., Guevara B., Eric
Published 1979

Fecundidad de Cichlasoma dovii (Pisces: Cichlidae) en el embalse Arenal, Guanacaste, Costa Rica

by Cabrera Peña, Jorge, Mora Jamett, Margarita
Published 1992

Bionomics of black flies (Diptera: Simuliidae ) in Costa Rica. VIII. Observations on the natural infection of black fly larvae by Neomesomermis travisi (Nematoda: Mermithidae)

by Fallas, Francisco, Vargas V., Mario
Published 1981

Caracoles terrestres (Mollusca: Gastropoda) de Iturbide, Nuevo León, México

by Correa Sandoval, Alfonso
Published 1996

Key to the genus Megachile, Chalicodoma group (Hymenoptera: Megachilidae) in Cuba

by Genaro, Julio A
Published 1996

Isópodos (Crustacea: Peracarida) de un arrecife del Caribe de Costa Rica

by Breedy, Odalisca, Murillo, Manuel
Published 1995

Desarrollo gametofítico de Metaxya rostrata (Filicales: Metaxyaceae)

by Pérez- García, Blanca, Mendoza, Aniceto, Riba, Ramón
Published 1994

The use of synthetic and natural androgens for the production of monosex male Oreochromis niloticus (Pisces)

by Ladu, Lady B.M.B, Madara, A A
Published 1994

Vocalizaciones del ñandú común Rhea americana (Aves: Rheidae) en Argentina

by Mercolli, Claudia, Yanosky, A Alberto
Published 1994

Epifauna del ostión espinoso Spondylus princeps unicolor (Mollusca: Bivalvia), de Puerto Escondido, Golfo de California, México

by de León González, Jesús Angel, Leija Tristán, Antonio, Salazar-Vallejo, Sergio I
Published 1993

Claves ilustradas para las familias y los géneros de Terebrantia (Insecta: Thysanoptera) de Costa Rica y Panamá

by Mound, Laurence, Retana, Axel P, du Heaume, Grahan
Published 1993

Mamíferos do nordeste do Pará, Brasil

by Carvalho, Cory T. de, Toccheton, Armando J.
Published 1967

The Land Crabs of Costa Rica

by Bright, Donald B.
Published 1966

Notas sobre carófitos de Costa Rica. II

by Gómez P., Luis Diego
Published 1971

Palmacites berryanum, a new palm fossil from the Costa Rican Tertiary

by Gómez P., Luis Diego
Published 1971

Investigación de hemoglobinas anormales en población de raza negra costarricense

by Sáenz, German F., Arroyo, German, Jiménez, Javier, Gutiérrez, Alvaro, Barrenechea, Mario, Brilla, Eduardo, Valenciano, Eliécer
Published 1971