Some helminth parasites of Nevada bullfrogs, Rana catesbiana Shaw

by Babero, Bert B., Golling, Katharina
Published 1973

Lycoperdaceae of Costa Rica. I. The genus Morganella

by Morales, María Isabel, Nassar, Maryssia, Saénz, J. A.
Published 1973

Biochemical and cytogenetic studies of Poecilia from eastern México. I. Comparative microelectrophoresis of plasma proteins of seven species

by Balsano, J. S., Rasch, Ellen M.
Published 1973

Los cíclidos (Pisces: Pereiformes) de la Laguna de Términos y sus afluentes

by Toral Almazán, Silvia, Reséndez Medina, Andrés
Published 1973

Food habits of some Costa Rican bats

by Howell, D. J., Burch, Derek
Published 1973

The venomous coral snakes (genus Micrurus) of Costa Rica

by Savage, Jay M., Vial, James L.
Published 1973

Biochemical and cytogenetic studies of Poecilia from eastem Mexico. II. Frequency, perpetuation, and probable origin of triploid genomes in females associated with Poecilia formosa

by Rasch, Ellen M., Balsano, J. S.
Published 1973

Geographical distribution of Viperidae, Elapidae and Hydrophidae in Costa Rica

by Taylor, Richard T., Flores, Alvaro, Flores, Guillermo, Bolaños, Róger
Published 1973

Aspects of social behavior in Poecilia latipinna (Lesueur)

by Baird, Ronald C.
Published 1973

Hemoglobinas anormales en una población estudiantil universitaria

by Sáenz, German F., Arroyo, Guido, Alvarado, Ma. de los Ángeles, Montero, Gerardo, Jiménez, Javier, Valenciano, Eliécer
Published 1973

Clave para Falales (Phallales) de Costa Rica

by Sáenz, J. A., Nassar, Maryssia, Morales, María Isabel
Published 1973

Ecología de la ictiofauna del Golfo de Nicoya, Costa Rica, un estuario tropical

by León, Pedro E.
Published 1973

Dos helechos pascuenses

by Gómez P., Luis D.
Published 1973

Monogenea (van Beneden, 1858) Carus, 1863 de peces marinos del litoral mexicano del Golfo de México y del Mar Caribe. VI

by Caballero C., Eduardo, Bravo-Hollis, Margarita
Published 1973

Coleoptera: Scarabaeidae Observations on the behavior of a tropical rain forest dung beetle, Megathoposoma candezei (Harold)

by Wille, Alvaro
Published 1973

Producción y descomposición del mantillo en un bosque secundario húmedo de premontano

by Fournier, Luis A., Camacho de Castro, Lucía
Published 1973

Daño ocasionado al banano por el murciélago Glossophaga soricina en el Valle de La Estrella, Limón, Costa Rica

by Jiménez Jiménez, Jorge
Published 1973

Eastem Pacific tropical and subtropical decapods (Macrura: Natantia). II. Redescription of the caridean shrimp Pasiphaea emarginata (Rathbun, 1902) with a key to the southern Calif...

by Murillo, Manuel M.
Published 1973

Contribuciones a la pteridología costarricense. IV. Los géneros Cheiloplecton, Schaffneria y Paltonium en Costa Rica

by Gómez P., Luis D.
Published 1973

Hymenophyllopsis hymenophylloides L. D. Gómez, nov. sp., de la Guayana venezolana

by Gómez P., Luis D.
Published 1973