114 
L. NITIDA. Encrusting; cells ovoid, in juxtaposition, 
with transverse calcareous bands reaching to the media 0 
line; apertures oval. P). xxii., fig. 3. 
Berenicea nitida, Fleming’s Brit. An., p. 533. Leprah® 
nitida, Johnston’s Brit. Zooph., p. 277, pi. 34, fig. 7. 
Hab. On stones and shells, not very rare. Polperr 0 ’ 
Goran, Mr. Peach. 
This pretty species rarely exceeds half-an-inch in diameter 
It is encrusting, calcareous, and composed of urceolate cell*’ 
placed in juxtaposition. When living it is either of a yello"'' 
ish flesh colour or intermediate to a silvery white; but wbe 
dead it is dull. The cells though closely approximated 
not always arranged in the same order ; sometimes they I * 8 
in radiating lines in an alternate manner, the centre, or bo 1 ; 
of one cell being opposite to the junction of two in the n®* 
row ; at others in circles round one centre, and sometimes 1 
an irregular alternate manner, or in no order at all. 
surface of the cell is furrowed by from five to nine transvef 8 
calcareous bands ; they are dentiform or conoidal, with th 6 ^ 
bases placed laterally and apices nearly meeting in the cen^ 
or median line; but as they do not actually meet, there 
a longitudinal line of a plain semi-transparent appearau L j 
The apertures are oval, inclining to a triangular form, a ri» ® 
with two long slender divaricated spines on the distal marg' 
These differ from the spinous appearances refered to by "J 
Johnston as being produced by the incipient formation ^ 
the next cells ; they are long slender hair like appendar 
which stand prominently from the cells. They, are howc'^ 
rarely to be seen, but in the younger cells, for they are 
delicate that the agitation of the sea alone is sufficient ^ 
destroy them, and hence they are never found in specif ’ 8 
dredged up, but only in those carefully collected aDd P 
served. ( 
L. INNOMINATA. Encrusting, cells oval, in c ’ ro ° o0 s 
rows ; sides of the cells with short transverse calcare 
bands. PI. xxii., fig. 4. 
Uab. On stones, rare. Goran, Mr. Peach. Polp err 
Mount’s bay. .0 
Calcareous, encrusting in patches of about half-an-i° C j a t 
diameter. The cells are oval, but somewhat contract® g f 
each extremity and inflated about the middle. The side Q{ i 
the cells, from the intercellular spaces, are marked by s J 
conoidal transverse bands ; they are calcareous and eS fi) | 
for about one-fourth of the transverse diameter; the ce ell) i- 
and longitudinal half is therefore plain, and is also s a()( j 
transparent. The apertures are circular, contracte 1 > 
