INTRODUCTION. [xxvii 
Second 'Tribe—TUBIPORIN S. 
Polypi fasciculate, and provided with independent tubular polypidoms, united at 
various heights by means of horizontal connecting plates, the surface of which produces 
the reproductive buds. 
9. Genus TUBIPORA. 
Lamarck, Hist. des Anim. sans Verteb., vol. ii, p. 207, 1816. 
Typ. sp. Tubtpora musica, Lamarck, loc. cit., p. 209. 
Third 'Tribe—TELESTHIN ©. 
Polypi segregate and multiplying by lateral gemmation, so as to form arborescent 
tufts. 
10. Genus TaiustHo. 
Lamouroux, Polypiers Flexibles, p. 232. 
Polypidom composed of ramified tubes of a subcalcareous structure. 
Typ. sp., Telestho aurantiaca, Lamouroux, loc. cit., tab. vii, fig. 6. 
Fourth Tribe—ALCYONIN Ai. 
Polypi aggregate and multiplying by lateral gemmation, so as to constitute a ramified, 
lobate or simple mass. 
11. Genus ALCYONIUM. 
Pallas, Elenchus Zooph., p. 342, 1766; Lobularia, Savigny, ap. Lamarck, Hist. des Anim. sans Verteb. 
vol. ui, p. 412, 1816. 
Polypi retractile, and united by a thick tough common tissue, so as to form gibbose 
or subramified masses. 
Typ. sp., Aleyonium digitatum, Lin. Solander and Ellis, op. cit., p. 175. 
