the Tro7}(1hjrm Fionf. 12J> 



Fa 111. Celleporellidae. 

 = Didznf.rifloes, .]. Jullii'ii ((Jap Ildrn). 



Genus CcLLHi'ORKLLA, J. E. Gray, 1848. 



1848. Celleporella, Gray, List Brit. Anim. Brit. Mus., Radiated Ani- 

 mals p. li'S. 

 1888. Dinzenxia, J. .luUien, Miss. Scien. Cap Horn, Rryozoaires, p. 28. 



]\I. .fill lion, in the synonymy of tlie genus, gives " Celle- 

 jioreJla, Gray (partini) "; but the only species which Gray 

 placed in his genus was C. h/alina, and Jullien's name is an 

 al)Solute synonym of the before-described genus. 



Jullicn has drawn attention to the striking features in this 

 genus, not only as shown in the larval state and early deve- 

 lopment, for the elucidation of which we are indebted to the 

 admirable work of J. Barrois, but also to the fact that the 

 erect ooecia, which are developed in great profusion on the 

 heaped-up central portion of the colony, are not on the 

 summit of j)oly))ide-bearing cells, but of small cells connected 

 with the reproductive function. Jullien's work should be 

 consulted with respect to the genus, as I have only referred 

 to the more remarkable characters. Levinsen, though appa- 

 rently unacquainted with Jullien's work, has more recently 

 added to our knowledge by illustrating the mode of growth 

 of the ooecium-cells (Levinsen, ' Hauchs ' Togter Polyzoa,' 

 1891, p. 28G, pi. iii. figs. 10-15). 



22. Cellpporella hyalina, Linn. 

 Trondhjem, on shell. 



Var. cafeniferay Norman. 



This name may be given to a variety from Floro, 

 Norway. It is very prettily reticulated, the cells 

 being separated from each other by a regular chain- 

 like interstitial development, the openings in which 

 are oval, arranged in single file. It is an inter- 

 mediate form between C. hyalina and C. diacreta 

 (Busk) * ; in the latter the interspaces are wider 

 and tlie openings not arranged in such regular 

 order. 



* .TuUien (Cap Horn Bryoz. p. 3;3) has renamed this Diazeuxia reiicu- 

 lai}!>, quotinp: as a synonym " Lepralia hyalina, var discreta, (j. Busk " ; 

 bat Busk (B. M. Cat. I'olyz., Clieilos. p. 8o) has given no such varietal 

 name ; he described a species, Lepralia dixnrfa, and his specific name 

 must therefore be retained. 



Ami. ct Mar/. N. Hist. Ser. 6. Vol xiii. 9 



