In Johnston’s ‘History of British Zoophytes,’ six genera of Vesiculariadan Polyzoa are described, but of which one, Beania, is more properly referrible to the cheilostomatous sub-order. To these have subsequently been added two or three others ; as Avenella, by Sir J. Dalzell, Mimosella by the Rev. T. Hincks, and, more recently, a form described under the name Nolella, by Mr. Gosse. To this number we have now to add another generic form, new to the British Fauna, and a new species belonging apparently to the established genus Farrella, although the characters of that genus, as assigned to it by Van Beneden, will require some modification for its admission.
Order. POLYZOA INFUNDIBULATA.
Sub-order III. CTENOSTOMATA (VESICULARINA).
Fam. 1. VESICULABIADÆ.
§ 2. Polypides without a gizzard.
Gen. 1. Farrella, Ehrenberg.
Laguncula, Van Beneden.
Char. Cells oblong or tubulous, scattered, arising from a creeping sto- toniferous...