DESCRIPTION OF CORALS. 159 
irregular, short, curved, outwardly inclined plates, largely foraminated or 
connected by transverse processes, and of filaments varying in thickness, the 
whole being unequally traversed by the laminz parallel to the surface. The 
traces of stellular cavities were few and indistinct and of limited range, con- 
sisting principally of plates with hispid sides. No clear proofs were obtained 
of stars intersected by studded lamine, or of the latter penetrating within the 
terminal cup, though they sometimes coated the margin. 
The ramose or lobated processes (fig. 7) were occasionally dislocated, but 
they were frequently in connexion with the tabular masses, swelling out in 
some cases near the lines of junction; and their structural agreement proved 
that the whole had resulted from one polypiferous body. So far as could be 
ascertained, the branches projected nearly at right angles to the surface which 
gave them off, and in two or three instances to the extent of 6 or 8 lines ; but 
they often inosculated or diverged in various directions. If the specimen were 
so placed that the tabular portion would represent an upper expanded surface, 
then the lobes would bear somewhat the character of stems or supports ; but 
the diverging mode of growth, already mentioned in noticing the side section, 
led to the inference that the processes were truly lateral shoots. The surfaces 
were occupied to a much greater extent than in the tabular planes by 
interstitial structure, and frequently to the total exclusion of stellular cups, as 
if the lobe had been developed by animal matter in which no polype-mouths or 
digestive cavities had been produced. One branch exhibited numerous stars, 
which agreed perfectly with those on the expanded surfaces. Internally the 
lobes were composed of reticulated irregular plates similar to those already 
noticed in the side section ; but no studded laminz or filaments were observed. 
Respecting the origin of additional stars in the general surface, small circular 
areas were detected, fringed by projecting points or traversed by irregular 
lamellz, and they bore the aspect of having been developed in the intermediate 
animal substance, and in no respect of having sprung from the adjacent mature 
stars. 
Crass BRYOZOA, Ehvrb. 
Family AsTERoDISCINA. 
Lunulites urceolata ?, Lamx. (Tab. I. fig. 8.) 
Obtusely conical; cells in parallel rows easily separated ; form irregularly 
hexagonal or imperfectly oval; surface open; margin sharp; interior rounded, 
y2 
