Narrative of the Voyage of H.M.S. Rattlesnake, Commanded By the Late Captain Owen Stanley, R.N., F.R.S. Etc. During the Years 1846-1850. — Volume 1 / Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, Etc. to Which Is Added the Account of Mr. E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist to the Expedition.

by John MacGillivray

Cells in pairs; three spines on the outer edge, the central usually the longest and strongest.

Habitat: Bass Strait, 45 fathoms.

Parasitic upon Polyzoa, etc. circinate branched--branches irregular divaricate. The opening of the cell triangular, very obliquely placed.

2. Emma tricellata, n. sp.

Cells in triplets; three or four long spines on the upper and outer part; a small spine on the inner and lower part of the edge of the opening.

Habitat: Bass Strait.

Parasitic upon Catenicella, etc. Habit long straggling, very like the preceding species. The cells are more infundibuliform, and the avicularium, which, as in E. crystallina is not always present, is larger, but occupies the same position on the cell.

2. Polyzoary continuous throughout.

Fam. 3. BICELLARIADAE. Frond wholly divided into narrow ligulate, dichotomous, bi or multiserial branches; no vibracula. Avicularia when present pedunculate.

14. BICELLARIA, Blainville.