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Chironomidae of symbiotic habits have been recorded in different parts of the world, among commensals and parasites. There are different genera reported at the moment, however questions such as the origin of commensal or parasitic life, which occurred first or what are their benefits remain debatable. In order to contribute with information to eluc...
The marine microturbellarian diversity is scarcely known from the Pacific coastline of South America. The coastal margin of Peru is highly influenced by cold-water currents (Humboldt Current System). These cold-water currents play important roles in shaping the marine species diversity in this area. However, there are no previous records of marine...
Andesiops peruvianus (Ulmer, 1920) is a small minnow mayfly with a distribution throughout the Andes Mountains, mainly in lotic environments. In recent years, the taxonomic status of the species has been shifting, even finding out molecular and morphological evidence to consider it as a cryptic species. In this work, we collected seven specimens of...
Male imago of Baetodes traverae is described and its nymph is redescribed. The male imago is distinguished from the other known species of the genus by (1) abdominal tubercles absent, (2) turbinate eyes moderately large and not contiguous apically, (3) segment II of forceps without constriction, (4) coxal gills absent, and (5) abdominal tubercles a...
Los Turbelarios, Platyhelminthes de vida libre (generalmente), pertenecen a dos grupos Catenulida y Rhabditophora. Los Turbelarios presentan variedad de configuraciones y tamaños corporales: cuerpo ciliado y aplanado (vermiformes), y son hermafroditas simultáneos con fertilización cruzada. Estos animales viven en ambientes marinos, salobres, dulcea...
Polyclads are marine free-living Platyhelminthes, generally disregarded in marine environmental assessments. Here, Phrikoceros inca (Cotylea, Pseudocerotidae), identified on the basis of external features such as its ear-like, held-erected pseudotentacles, number and position of pseudotentacular eyes, circular-like cerebral eyespot, ruffled-shaped...
Los turbelarios son los organismos bilaterales más sencillos que se conocen, difieren principalmente de grupos parásitos de platelmintos ya que mantienen una epidermis ciliada durante todo su ciclo de vida. A la fecha existen 6500 especies de turbelarios en el mundo; sin embargo, en Perú, catalogado como un país megadiverso, los estudios sobre la f...
El Perú posee uno de los mares con mayor diversidad del mundo; no obstante, el estudio de los invertebrados basales no se ha tomado en cuenta. Los turbelarios, organismos bilaterales basales, se pueden agrupar, según la longitud de sus cuerpos, como macroturbelarios (>1 cm) y microturbelarios (<~3 mm). Estos últimos son desconocidos en Perú. En est...
