194 ESCHARIDA., 
conical, with a large avicularium on the internal face, sometimes a 
conical spine on the opposite side of the mouth. 
Patagonia. 
C. ampliata, Autton, CMM, p. 99. Massive, free; cells 
agglomerated, vertical, smooth, ovate, with a row of large punctures 
round the margin ; mouth ovate or sub-orbicular, thin. 
Lyall Bay. 
C. agglutinans, Hutton, CMM. p. 99. Massive, free, enclos- 
ing serpule, &c.; cells agg glomerated, vertical, finely oranulated, ovate ; 
mouth sub-orbicular, lower lip flattened, sometimes produced into a 
short incurved spout. 
Lyall Bay. South Australia. 
FAMILY—ESCHARID. 
Zoarium erect, rigid, foliaceous and expanded, lobate or reticulated ; 
cells disposed quincuncially in the same plane on one or both sides of 
the zoarium. 
Genus, ESCHARA—Ray. 
Zoarium foliaceous and expanded, or branched and sub-linear ; cells 
on both surfaces back to back, immersed, coalescent, horizontal to the 
plane of the axis. 
(a.) More or less expanded, foliaceous. 
B. unicornis, Hutton, CALM, p. 99. Zoarium expanded ; cells 
short, with a few large pores on the surface; interstices finely granulated; 
mouth sub-orbicula, flattened below, lower lip produced into a rather 
incurved spout ; a single spine on the right or left side of the mouth. 
E. flexuosa, Hutton, C.M.M., ~p. 99. Foliaceous, infundibuliform, 
much waved, springing from a broad base; cells elongated, granular, 
separated by one or two rows of pores; mouth transverse, oval ; a large 
spoon-shaped avicularium in the centre, below the lower lip. 
(b.) Divided into branching lobes. 
EK. platalea, Ausk, Zc, ~. 90. Cells ovate, acute inferiorly, with 
a depressed area below the.mouth in front, at the bottom of which is a 
simple pore ; avicularia irregularly scattered over the polyzoarium, rare, 
with a spoon-shaped mandible. 
Australia. 
E. lichenoides, Milne-Edwards ; Busk, l.c., p. 90. Cells ovate, 
punctured in the centre by three to fone stellate pores, which soon 
coalesce into a single apparent opening; mouth sub-orbicular; a small 
prominent avicularium on each side immediately below the mouth, 
looking outwards. 
Australia. 
