REPORT ON THE POLYZOA. 
stem opposite branches arise, consisting either of a single triplet, or of a succession of 
geminate zooecia. Zooecia connate, urceolate, contracted towards the orifice, which is 
suborbicular, with a minute articular notch on each side below. 
In Dr. Solander’s posthumous work, a species of Cellaria is described under the name 
of Cellaria tulipifera?- and also a species of Sertularia (quadridentata) , 2 and excellent 
figures of both are given. 
Lamouroux, fancying some resemblance between the figures of these two species, con- 
joined them into a distinct genus, Pasythea, which was included by him in his Order 
Sertulariese. 
He notices, however, the probability of their belonging to different genera. 
About the same time Lamarck, perceiving, as Dr. Solander had done, the true affinities 
of the two forms, bestowed upon Cellaria tulipifera the name of Liriozoa, relegating the 
second species to its proper place among the Sertularians. 
In 1834 Blainville, 3 with much less excuse, fell into the same error as Lamouroux, 
and reunited the two species into a Sertularian genus Tuliparia, in glaring defiance of 
all rules of nomenclature and without any apparent reason. 
The only subsequent notice of Pasythea with which I am acquainted is that recently 
published by Mr. Hincks, who appears to have inadvertently overlooked the previous 
accounts of the species, and bestowed upon it the name of Epicaulidium pulchrum , 4 
which, however, he afterwards corrected . 5 
Under these circumstances it may perhaps admit of cpiestion as to whether priority 
should be given to Lamouroux’ or to Lamarck’s appellation. But as in date it seems 
probable, though by no means certain, that the former was slightly in advance, it seems 
as well to adopt his name. The trifling point is not worth discussion. 
Pasythea tulipifera is a very interesting form, but as it does not occur in the 
Challenger collection I need not notice it more particularly here. Nor in fact is there 
much to add to the excellent and succinct description of Dr. Solander, and that recently 
given by Mr. Hincks. 
Pasythea ehurnea, Smitt (sp.) (PL XXXIV. fig. l). 
Gemellipora ehurnea, Smitt, Florid. Bryoz., pt. 2, p. 35, pi. vii. figs. 152-156, and pi. ix. 
figs. 177a, 178. 
Character. — Zooecium in the erect portion pinnate. Stem at first a double calcareous 
tube, then a succession of geminate zooecia, of which two pairs constitute an internode, 
1 Loc. cit., p. 27, pi. v. figs, a, A. 
2 Ibid., p. 57, pi. v. figs, g, G. 
3 Man. d. ActinoL, p. 485, pi. lxxxiii. fig. 1 
4 Ann. and Mag. Nat. Hist., ser. 5, vol. vii. p. 156, pi. x. fig. 5, 1881. 
5 Ibid., vol. viii. p. 135. 
