The present paper deals with our observations on 4 new additions to the Venezuelan marine algal flora. Collections of these species were made from the coastal waters of eastern and western Venezuela. The 4 new additions are Ulva reticulata Forsskal (Ulvaceae) of Chlorophyta, Botryocladia shanksii Dawson (Rhodymeniaceae), Callitbamnion uraguayense Taylor (Ceramiaceae) and Taenioma perpusillum (J. Ag.) J. Ag. (Delesseriaceae) of Rhodophyta. Of these, U. reticula, a constitutes apparently a new addition to the western Atlantic, since all the earlier records are from the Red Sea, Japan and India. Morphological and anatomical aspects of the Venezuelan specimens are describes and illustrated. Aspects relating to their distribution in the Caribbean Sea and adjacent areas as well as affinities with related species are discussed briefly.