The collection of Marine Annelida made during the stay of the English Transit of Venus Expedition comprises seven species, representing five families, one of which, however, is Nemertean. Six appear to he new. Like the Polyzoa and Cœlenterata they were procured by a grapple in the Laminarian region, from depths of 10 fathoms and under. The Rev. A. E. Eaton states that the shore where he was stationed was somewhat unfavourable for collecting between tide-marks, as it consisted for the most part of ledges of rock without loose boulders, or of a coarse and barren shingle. The mean temperature of the water between tide-marks was 36° F. Mr. Eaton found the same paucity of Annelida in the littoral region at Spitzbergen. The American Transit of Venus Expedition obtained 4 species. The tubicolar forms and Polynoidae occurred on the roots of Macrocystis , and some of the young Nereids in the usual silken tubes on the fronds of Delesseria . None of the Annelids were found under stones, excepting the Earthworm described by Professor Lankester.