Name: Phellia violacea
Reference: Danielssen D. C., 1890, Plate XIV , fig. 10
View: Column, cross section
Caption: "Fig. 10. Do., transversal section of the medial portion of the body and gullet-tube, magnified. R. Directive septa. a. Longitudinal muscles of same; b. Transversal muscles of same; c. The 4 pairs of principal perfect septa; d. The longitudinal muscles of the same; e. The 6 pairs of secondary perfect septa; f. The longitudinal muscles of the same; g. The 4 pairs of tertiary imperfect septa with their longitudinal and transversal muscles; h. The gullet-groove; i. The 24 longitudinal folds of the inner wall of the gullet-tube."