MARINE HETEROTROPHIC AMEBAS, FLAGELLATES AND HELIOZOA FROM BELIZE (CENTRAL-AMERICA) AND TENERIFE (CANARY-ISLANDS), WITH DESCRIPTIONS OF NEWSPECIES, LUFFISPHAERA-BULBOCHAETE N-SP, L-LONGIHASTIS N-SP, L-TURRIFORMIS N-SP AND PAULINELLA-INTERMEDIA N-SP

Thirty four taxa of heterotrophic protists (amoebae, flagellates and h eliozoa) were encountered in cultures established from marine samples from Belize (Central America) and Tenerife (Canary Islands). Most spec ies are flagellates drawn from the choanoflagellates, the cryptophycea ns, the euglenids, the kinetoplastids, the bicosoecids, the chromulini ds, the pedinellids and a variety of taxa of uncertain affinities (Pro tista incertae sedis). The identity of the thecate choanoflagellates S alpingoeca ringens Kent, 1880, and S. tuba Kent, 1880, is discussed, a nd four new species of heterotrophic protists are described: one new s pecies of the amoeba genus Paulinella (Paulinella intermedia n. sp.) a nd three new species of the incertae sedis genus Luffisphaera Belcher & Swale, 1975 (Luffisphaera bulbochaete n. sp.; L. longihastis n. sp.; L. turriformis n. sp.).