3058. Jania capillacea Harv. On pneumatophores of Avicennia, Waterloo Lake, Nassau 59. Cladophoropsis membranacea on rocks near l.t. m. 60. Rhizoclonium Hooker Kutz. On rocks, high littoral 61. Dictyosiphon pusillus Collin; forming a compact velvety very dark green turf in crannies under shelving rocks, high littoral 62. Sophrosiphonia obscura on rocks, high littoral 63. Sophrosiphonia "obscura" with other algae, forming a turf on littoral rocks 64. Oscillatoria (?) extremely delicate, forming a thin brilliantly bluish-green stratum near l.t. m. in a dish-washing pool 66. Pseudotetraspora Antillensis On M. Arthurs