Tintinnids are a large group of planktonic ciliates with diverse morphologies. The range of variability in lorica shapes and sizes can be very high even within a single species depending on life stages and environmental conditions, which makes the delimitation

For the first time a taxonomic and ecological study of species belonging to Helicostomella was performed over a mesoscale spatial distribution by examining ca. 3000 loricae collected in argentine shelf waters during the austral autumn. Microscopic and

Tintinnids play an important role in the microbial food web and consist of neritic and oceanic ones biogeographically. Neritic tintinnid species are mainly present in continental shelf areas. Knowing their community structure is thus critical to better

The hyaline tintinnid Helicostomella subulata (Ehre.) Jorgensen, a dominant member of the summer-fall microzooplankton community in Bedford Basin, Nova Scotia, was cultured in the laboratory over 10 months, on a diet of microflagellates. The cultures