Those corals where a single corallite makes up the corallum. Shape and size range from an extremely low cone with an apical angle of 120° or more (patellate), through discoid (button-shaped), to horn-shaped and slender with an apical angle of 20° or less (ceratoid). A steep, conical shape with an apical angle of 40° is called ‘trochoid’; a subcircular, parallel-sided corallite ‘cylindrical’; cylindrical corallites that bend crookedly in a worm-like manner are ‘scolecoid’; a corallite shaped like the toe of a slipper is ‘calceolid’. Other shapes are also described.
Discoid
Patellate
- Euler pole
- Euler's constant
- Euler, Ulf Svante von
- Euler’s conjecture
- Euler’s constant
- Euler’s equation
- Euler’s equations(fluid dynamics)
- Euler’s formula
- Euler’s identity
- Euler’s method
- Euler’s phi function
- Euler’s rotation theorem
- Euler’s Theorem
- Euler’s theorem
- eulite
- eulogistic/dyslogistic
- eulysite
- Eumetazoa
- EUMETSAT
- EUMETSAT Advanced Retransmission Service
- Eumycota
- Eunomia family
- eunuch
- Euparkeria
- euphotic zone