40 



ged ill iiiore or less oblique transverse series each conlaining 1 — 4 zooids. As in 

 most ol' the latter the marginal ridges between the single zooids have vanished as 

 also the apertures of the heterozooeeia it is not easy lo make up the relative num- 

 ber of the two forms of zooids, but the heterozooeeia are at any rate much more 

 numerous than the kenozooecia, and sometimes take up the wliole belt especially 

 when the latter is narrow. The very small aperture is allmost circular — apart 

 from the straigth proximal corner — , and the larger part of it is filled by a con- 

 cave lamina, the proximal part of which is perforated by a semicircular opening. 



Ooecici have not been found. 



The Kenozooecia which have the same form and size as the heterozooeeia are 

 spread among the latter in scarce number and seem as a rule to be placed in the 

 middle of the longitudinal belt. 



The Closure is effected by means of a concave lamina. 



The Regeneration. Hitherto I have only seen a regeneration of new zooecia in 

 old ones. 



The Colonies (Diam. 0,4 — 0,8) are incomposite, and the cylindrical fragments 

 show an arrangement of the zooecia in regular more or less oblique transverse 

 series, each of which contains 6 — 11 zooecia. As a rule the apertures of the outer- 

 most zooecia in each transverse series are distinctly larger than the other. 



Numerous specimens from: Faxoe and Rejstrup (Danian), Denmark. Of the two 

 very distinct species which have been confounded under the name Hornera Steen- 

 strupi the present is found in Faxoe in much larger numbers than the other (M. 

 armata), and, therefore, I think it likely that it should keep the specific name given 

 by Pergens. According to the explanation of the plate this author refers the frag- 

 ment figured to an old colony, no doubt because the marginal ridges between the 

 heterozooeeia and kenozooecia have been indistinct as is the case in most specimens 

 of this species from Faxoe, while he has regarded the specimens of Mel. armata as 

 young colonies of the same species because the corresponding areas are very distinct. 

 Pergens figure 4, however, shows sufficiently distinct the small narrow »dorsal« 

 areas, and the smaller dimensions of the fragment figured is evident from the fact, 

 that the figure, which has the same size as the figure 3 is pictured under a larger 

 magnifying power. — 



Meliceritites sarissata Gregory. 



Reptoniultelea sarissata Gregory, Cretac. liryozoa, p. :iU2, pi. XVI, fig. 7. 

 (PI. II, figs. 1—3.) 



The Zooecia which are divided by very narrow more or less distinct marginal 

 ridges, are generally rhombic, about twice as long as broad, and the convex or 

 saddle-shaped suboi-al area, which is about of the length of the aperture, is strongly, 

 almost vertically ascending towards the latter. No iuteroral tubercles. The aper- 

 ture which together with the strongly developed peristomial thickening takes up the 



