26 Prof. P. M. Duncan on the 
The former specific diagnosis therefore requires to be slightly 
enlarged. 
Podoseris elongata, Dunc., 1869 (amended 1889). 
(Pl. V. tigs. 46152 16) 
Corallum simple, tall, originally and usually permanently 
attached to foreign bodies by a circular base, the width of 
which may be larger or smaller than that of the calice. 
Stem cylindrical and with constrictions and expansions or 
bluntly conical. 
Calice broad or narrow, concave or convex, with a small 
central fossula or a projection. Septa numerous, the fifth 
cycle more or less incomplete; the higher orders either very 
small and rudimentary, or absent here and there ; the rest long, 
broad, arched, close, and uniting more or less, many reaching 
and forming part or the whole of the small columella. Swol- 
len in regular series at the sides, swellings more or less 
oblique, ending in synapticule or arched processes or in 
delicate dissepiments ; sides of septa in ridges and may be 
granular. 
A small columella, formed by the septal ends, but some 
interseptal tissue appears to be present. Costee well marked, 
usually alternately large and small, with bands of synapticule 
in transverse series and with many false synapticule: more or 
less triangular in outline, with or without endotheca, between 
them. Hpitheca in bands. 
Height from 15 to 20 millim., breadth from 9 to 12 millim. 
Red Chalk, Norfolk. 
Podoseris affinis, sp. nov. (Pl. V. figs. 1 and 2.) 
Corallum tall, formerly attached, base small; stem more or 
less cylindrical, unequally swollen and constricted; calice 
narrower than the thickest part, broader than the base. 
Calice convex, with a small central fossula surrounded by the 
inner ends of the longest septa. Septa numerous, long, 
moderately stout, the larger passing far inwards, rather far 
apart, some rudimentary, the fifth cycle very incomplete, 
upper edges convex and with a single row of blunt granules. 
Columella deeply seated at the base of the fossula, mostly 
formed by the ends of septa. Coste close, moderately unequal, 
apparently more uumerous than the septa. Synapticule 
large in the calice and numerous between the cost. Proba- 
bly an epitheca. 
Height 15 millim., breadth 6 or 7 millim. 
