12 H. LACAZE-DUTHIERS. 
» Mr. Ellis’s ‘History of Zoophytes” is given a figure of whatthe 
» author regarded as the Polype of A. spiralis, which he found scat- 
» tered over the stem of that species m the shape of small distant 
» warts. These when soaked in water, he describes as having six 
» tentacula surrounding à small cup. The tentacula, he observes, 
» in a letter to Linnæus, published im the ‘‘Correspondence” 
» Of that naturalist, are shaped like a bulls horns, with wrinkles 
» across, and full of gelatinous matter ; and the cup of a most 
» elegant figure. In the figure this part appears to be concave, 
» with a crenated edge, and placed on an urn-shaped pediele. 
» Should this account of the Polype of Ant. spiralis prove to be 
» correct, it would be necessary to remove that species from 
» neighbourhood of the Gorgoniæ and other barked Corals, 
» from all of which it would differ so remarkably im its cup- 
» shaped appendage, and the want of ciliation of the surface of 
» its tentacula. Mr. Gray added that he had repeatedly examined 
» the stem of the species in question, but had never been able to 
» discover on it anything resembling à Polype. The earlier 
» observations of Rumphius, Marsigli and Pallas, the former on 
» Ant. spiralis, and the two latter on Ant. dichotoma, were of 
» too vague à character to furnish any idea of the Polype (4). » 
M. Dana (2), dans son magnifique ouvrage de l'exploration 
scientifique de l'Amérique, a donné des dessins fort beaux de 
deux espèces, de l’Antipathes arborea et de l'Antipathes anguina. 
Cette dernière espèce doit très-probablement entrer dans le 
genre Cirripathes de Blainv. D'après les formes extérieures, 
l’auteur américain à cru devoir établir un rapprochement entre 
les Zoanthaires et les Antipathaires, comme on peut en Juger par 
le passage suivant : 
«An examination of the animals of two species has led to an 
» arrangement of them among the Actinoïdea, as the tentacles 
(4) Voy. Proceedings of the Committee of Science and Correspondence of the 
zoological Society of London, part. 1, 1832, p. 41. 
(2) Voy. United-States exploring Expedition, Zooravres, 1 volume avec atlas grand 
in-folio, p. 579, 
