OF MADEIKA AND NEIGHBOURING ISLANDS. 293 



PallaSj Cellularia, for the unwarrantably introduced synonym Cellaria, 

 Laraouroux. Mr. Waters has recently dissented (Voyage ' Belgica,' Bryozoa, 

 1894, p. 34), writing : "As Tubocellaria opuntioides was the first mentioned, 

 this would be the type ; and the only genus to which according to the law 

 of priority the name could be applied is Tubocellaria,^'' but the laws of 

 nomenclature state differently (Rules Zool. Nomenc. Brit. Assoc. 1873, 

 § 3 and 4). No type was intimated by Pallas, and Lamouroux was not 

 compelled to take the first species named by Pallas, and he chose C. salicorn- 

 aria as his first-named species, and which has ever since been regarded as 

 the type, but his whim led him to substitute the spelling Cellaria for 

 Cellularia of Pallas : there was no justification for this^ and the former must 

 lapse in the latter older name. 



Cellularia Johnsoni {Bush). B. 



Dredged occasionally. It never grows in clusters in the way in which its 

 allies C. Jistulosa and C. sinuosa are found. 



Cellularia nodosa, n. sp. (PL 42. figs. 4, 5.) 



The zoarium in this species is contracted at intervals, and the zooecia of the 

 more swollen and of the more contracted parts are quite different. Those of 

 the former are ovate, arranged in quincunx, those in the same row touchino-, 

 or, as shown in figure, nearly touching each other, margins well raised ; 

 lower margin of oral opening very slightly arched, and not much above the 

 centre of the zooecium ; the pore of the ooecium is transversely elongated. 

 In the constrictions of the zoarium the zooecia are longer and narrowed, those 

 in the same line very distantly separated from each other, so that in this part 

 there is a near resemblance to C. Johnsoni. 



Growing on Sertullarellce which were attached to the telegraphic cable 

 when taken up. Many specimens were found, but none larger than that 

 figured {De Noronha). 



MiCROPORA CORIACEA {Esper). W. 



J. Jullien (Miss. Sci. Cap Horn, 1888, p. 78) instituted agennsPeneclaiisa, 

 with this species as the type, forgetful that this same species was the type of 

 MicrojJora, Gray. 



Common in Labra Bay and occasionally elsewhere at Madeira {A. M. N.). 

 Salvages, common on Ostrea cochlear (De Noronha) . 



Onychocella angulosa (Eeuss), B., W. (PI. 37. fig. 1.) 



1848. CeUepora angulosa, Eeuss, Foss. Polyp. Wiener Tertiarbeckens, p. 75, p], 11. 



fig. 10. 

 1868. Membmnipova antiqua, Busk, Quart. Journ. Micr. Sci vol. vi. p. 262, pi. 20, 



figs. 1,2. 



23* 



