promana

Nine species of sea anemones are documented from the west coast of the Peninsula of Baja California. Short descriptions of Anthopleura artemisia (Pickering in Dana, 1846), A elegantissima (Brandt, 1835), A. sola Pearse & Francis, 2000 and Epiactis prolifera Verrill, 1869 are provided, including images of the external and internal anatomy, as well as cnidae.

Temporal and spatial distribution of organochlorine pesticides (OCPs) and the organophosphate pesticide chlorpyrifos, one of the main insecticides used in Argentina, was evaluated in two populations of the sea anemone Bunodosoma zamponii living under different anthropological stressors: Las Delicias (LD) adjacent to a wastewater plant, and Punta Cantera (PC) a reference site. Pesticides were analyzed

This present study describes for the first time the annual seasonality of a peculiar association between two different groups of cnidarians in temperate waters of the Southwestern Atlantic Ocean: the parasitic larval phase of the sea anemone Peachia sp. (Anthozoa) with the hydromedusa Liriope tetraphylla and Eucheilota ventricularis (Hydrozoa) from Mar del Plata, Argentina. As

Polychlorinated biphenyls (PCBs) are persistent and bioaccumulable organic compounds. The occurrence of PCBs was assessed in two populations of the intertidal sea anemone Bunodosoma zamponii living under different anthropogenic strains. One location was in vicinity to a wastewater plant (Las Delicias, LD), and the other was a preserved location chosen as a reference site (Punta

The diversity of Ceriantharia is known from studies formally describing species from the late 18th Century onwards. However, no nomenclators including a list and discussion of all valid species have been produced since a list discussed by Carlgren in 1912. The present nomenclator presents a complete list of adult species of Ceriantharia of the World, including a discussion on each

 In the systematics of cnidarians, the different types of cnidocysts are considered an important taxonomic character.In Hydra, the four types of cnidocysts found in the ectoderm, concentrated in tentacles and their measurements, together withother morphological and reproductive characteristics, are very important for the taxonomy of the species. In this study, weexplore in detail the biometric