Actinozoa— Corals. go 
li * st ™«ture a minute Sea 
calcareous skeleton or axis secreted 'by 'tl lnfcerrial h ° rn / or 
“tr *“» > 
“ d Ji » «©SiSfC&jSS?* *• **> 
-a », »d 1 rs.3 > £ r a°' **— »«•■ 0 . 6 , 8 . 
Gallery, 
No. 10. 
Corals. 
Table-cases. 
Nos. 1, 5, 6, 
8 & 9, and 
Wall-cases, 
Nos. 1 to 6. 
Division B.— Zoanthaeia-sclerodeemata * 
but^nttead a o e f C re 1S SCt' T? bIeS a Sea Anemone, 
tissues, a deposit of solid calcareous "mi ® 0 “P ose d of soft Wall-cases, 
secretion of Carbonate nf r i ™ atter 1S formed by the Nos. l to 5. 
*«« r .i .6. lx? ores* 
z„';: r ,z gap*#*,**** &sr* 
correspond hth the messes ’ «“* 
aUd * eUtaCleS in01 ' eases "4“hnrly wTth* the n lg° e f 
In addition to the theca and the mnta a column m-». 1 
mass sometimes arises in the axis of ,1.’,. , ■? aloareous 
the columella, and near “t a circle nf CI ’P. and is known as 
^^fcHsssnSSSrs 
them, are as a rule horizontal • they oft Pn + ’ ’ ll]ve 
right across the visceral chamber. The epitheca i*™ Yd! 
$zzz veat r?’ strei ; gtheni ^ Zu d oX:i 
or tne polype. Costa or ribs may also nroieef + , , 
wa 1 th e cup. Within the calice or cup 
stomach and soft parts of the nolyne and tin, S* ‘ ce< , t le 
below this the ealice is sub-divided by the septa into '< la "' b . e1 ' ’ 
of vertical compartments called “ the intercepted loculi.’’™^ 
Ihe septa aie not all of equal length : some called 
septa, are wider than others, and may extend far’enonuh to rneef 
in the centre of the visceral chamber; others are less produced 
the1r a ; e idS° Wn “ SeCOndary and te, ’ tiar y “P*. neebdingt 
skefeto™" C ° raIS ’” tha( “ * ^ -Crete a calcareous 
