A new species of salamander ( genus Bolitoglossa) from Costa Rica /

por Robinson, Douglas C., Robinson, Douglas C., Bolaños Vives, Federico 1961-, Wabe, David B.

Discovery of a Blind Olive Ridley Turtle (Lepidochelys olivacea) nesting at Playa Ostional, Costa Rica /

por Mora, Juan Manuel, Mora, Juan Manuel, Robinson, Douglas C.

Predation of sea turtle eggs (Lepidochelys) by the snake Loxocemus bicolor Cope /

por Mora, José Manuel, Mora, José Manuel, Robinson, Douglas C.

Abundance, distribution and movements of Olive Ridley sea turtles in Costa Rica /

por Cornelius, Stephen E., Cornelius, Stephen E., Robinson, Douglas C.
Publicado 1983