Endopachys Lonsdale, 1845

Diagnosis.

Corallum solitary and free, resulting from transverse division or budding from corallum margin. Corallum straight. Shape of corallum variable, including cuneiform, compressed-cylindrical, and flabellate. Some species with six or twelve robust ridges or flanges aligned to C1 and C2. Epitheca absent. Base of corallum covered with spines. Towards calices, spines usually aligned into narrow costae. Pourtalès plan present. ≤ five cycles of septa. P3 or P4 usually present. Columella elongate, discrete, and spongy.

Type species.

Endopachys alatum Lonsdale, 1845, by subsequent designation (Wells 1975).