Exotheca
Exotheca , noun
[Nl., from Greek 'e`xw outside + {not transcribed} a case, box.]
(Zoology) The tissue which fills the interspaces between the costa of many madreporarian corals, usually consisting of small transverse or oblique septa.
Exotheca , noun
[Nl., from Greek 'e`xw outside + {not transcribed} a case, box.]