Parietes and basis sometimes permeated by pores, sometimes not: radii

Chapter

ABSTRACT

Parietes and base porose: shell white, or faintly tinged with purple. Scutum with the basal margin protuberant in the middle. Tergum with the longitudinal furrow closed in the upper part: spur not closely adjoining the basi-scutal angle.

Parietes and basis sometimes permeated by pores, sometimes not: radii not permeated by pores: shell elongated in its rostro–carinal axis: basis boat-shaped: attached to Gorgoniae and Milleporae

ABSTRACT