Helogenes marmoratus Gunther, 1863 Identification: The possession of nine principal fin rays in the lower lobe of the caudal fin of Helogenes marmoratus distinguished the species from H. gouldingi and H. castaneus, which have eight principal rays on the lower lobe of that fin. The 39-48 anal-fin
from the Atlantic drainages of Guianas, upper Orinoco and Negro systems and upper Amazon
Christopher Columbus’ accounts of the Caribbean include harrowing descriptions of fierce raiders who abducted women and cannibalized men – stories long dismissed as myths. But a new study suggests Columbus may have been telling the truth. Using the equivalent of facial recognition technology,
Caribs hailed from the Northwest Amazon, and archaeologists long believed they never
from the Florida Museum of Natural History
images of… Read More Life on Earth At 45 feet long, ‘Titanoboa’ snake ruled the Amazon
Cetopsis coecutiens (Lichtenstein, 1819) Identification: Cetopsis coecutiens can be distinguished from all of its congeners by the combination of the presence of an eye, the conical teeth on the vomer and dentary, a body depth greater than 0.22 of SL, the elongated filaments on the distal portion
Range: Cetopsis coecutiens is broadly distributed through the Amazon basin in Bolivia
Cetopsis montana Vari, Ferraris & de Pinna, 2005 Identification: Cetopsis montana can be distinguished from all of its congeners by the combination of the presence of an eye, the conical teeth on the vomer and dentary, the rounded posterior nares which is distinctly separated from the contral
Range: Cetopsis montana occurs in the western portions of the Amazon basin in northeastern
Cetopsis oliveirai (Lundberg & Rapp Py-Daniel, 1994) Identification: Cetopsis oliveirai can be readily distinguished from all other members of the Cetopsinae by its complete absence of eyes (versus the presence of those organs in all other species of the Cetopsinae) and the presence of extrem
Range: Cetopsis oliveirai is known from the middle and upper portions of the Amazon
Cetopsis plumbea Steindachner, 1882 Identification: Cetopsis plumbea can be distinguished from all of its congeners by the combination of the presence of an eye, the conical teeth on the vomer and dentary, the rounded posterior nares which is distinctly separated from the contralateral nares by a
Range: Cetopsis plumbea occurs in the western portions of the Amazon basin in eastern
Over the course of four weeks this summer, a motley crew of biologists, engineers, entrepreneurs and programmers gathered at predetermined sites within Windsor Nature Park, a 185-acre tropical rainforest located in the heart of Singapore. They’d traveled from all over the world to participate in a o
six groups that will compete in the XPRIZE finals competition next year in the Amazon
Gainesville. Rental car smell. Deserted Miami International Airport at midnight. Uncomfortable sleep with an anonymous action film. Lima airport buzzing at dawn. Coffee. Over-air-conditioned plane. Coffee. Under-air-conditioned Iquitos airport. Non-stop cumbia beats on the bus. Non-stop motor drone
The start of another field season in the Peruvian Amazon.
Cetopsis sandrae Vari, Ferraris & de Pinna, 2005 Identification: Cetopsis sandrae can be distinguished from all of its congeners by the combination of the presence of an eye, the conical teeth on the vomer and the dentary, the rounded posterior nares which is distinctly separated from the con
known only from the Rio Arinos in the upper portions of the Rio Tapajs system, Amazon
