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The geographic distribution of Costa Rican velvet worms (Onychophora: Peripatidae)
(Revista de Biologia Tropical vol.64 no.4 1401-1414 2016, 2016-06-06)
Velvet worms, “peripatus” or onychophorans, are “living fossils” that were geographically widespread in Cambrian seas but now occur exclusively on terrestrial habitats. The only extant species studied in some detail are ...
Evaluación del género Camelobaetidius Demoulin, 1966 [Ephemeroptera: Baetidae como indicador para el monitoreo de quebradas y ríos en Costa Rica
(Universidad Nacional, Costa Rica, 2020)
El estudio de los insectos acuáticos se ha fomentado en los últimos años gracias a su utilidad en la bioindicación de cambios en los ecosistemas lóticos asociados al desarrollo socioeconómico. Sin embargo, existen vacíos ...
Sistemática , evolución y conservación de los onicóforos de la Cordillera Volcánica Central de Costa Rica
(Universidad Nacional (Costa Rica), 2019)
El género Peripatidae posee una limitada diversidad morfológica, la cual ha sido un obstáculo para
establecer una adecuada taxonomía. El uso de análisis de ADN, en lugar de ayudar a resolver este problema, hizo surgir ...
Comprobación taxonómica de la Famila Urotrygonidae en el Pacífico Norte de Costa Rica utilizando herramientas morfológicas y genéticas
(Universidad Nacional (Costa Rica), 2020)
Para establecer medidas de manejo y protección eficaces es primordial identificar de manera correcta las especies. Clasificar erróneamente las especies, podría generar datos incorrectos sobre el estado actual de sus ...
Redescription of four species of Camelobaetidius Demoulin, 1966 (Ephemeroptera: Baetidae) from Central and North America
(Magnolia Press, 2020-03-30)
Four species of Camelobaetidius (C. maidu, C. variabilis, C. kondratieffi, and C. shepardi) are redescribed and diagnosed
based on paratype material and original descriptions. Some omissions and inaccurate information in ...
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae)
(Universidad de Costa Rica, 2010)
Onychophorans, or velvet worms, are poorly known and rare animals. Here we report the discovery of a new species that is also the largest onychophoran found so far, a 22cm long female from the Caribbean coastal forest of ...
A New Hybrid of Serpocaulon (Polypodiaceae) from Costa Rica
(Bio One Research Evolved, 2013)
A new hybrid Serpocaulon 3 sessilipinnum A. Rojas & J.M. Chaves is described. The
new taxon has characters intermediate between S. fraxinifolium (Jacq.) A.R. Sm. and S. ptilorhizon
(Christ) A.R. Sm., which are related ...
A new species of Seticeros from Costa Rica (Coleoptera, Cerambycidae, Prioninae)
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2011)
A new species of Seticeros Perger & Santos-Silva, 2010 (Prioninae: Callipogonini) from San Isidro del General, San José, Costa Rica is described and illustrated. A key to the species of Seticeros is added.
Annotated checklist of marine molluscs collected during the R. V. Victor Hensen Costa Rica Expedition 1993/1994
(Universidad de Costa Rica, 1995)
An annotated checklist of species of marine molluscs from Golfo Dulce, Bahfa Coronado and Golfo de Nicoya. Costa Rica, obtained aI 20-200 m during the Victor Hensen cruise, includes 157 species: 108 Gastropoda and 49 ...
Camelobaetidius guaycara, a new species of Baetidae (Ephemeroptera) from Costa Rica, Central America
(Magnolia Press, 2018-06-14)
The nymphs of a new species of Camelobaetidius (Ephemeroptera: Baetidae) possibly related to the South American species of this genus were found on the Atlantic and Pacific slopes of Costa Rica. Among other characteristics ...