Figure 4 in Description and Figures of New Lectotype and Paralectotype Material of Recent Brachiopod Thecidellina maxilla (Hedley, 1899)

Figure 4. Thecidellina maxilla AM C.593655. (A) Ventral valve interior with tubercles on valve floor and long hemispondYlium prongs reaching past the teeth. (B) Dorsal valve interior with partiallY fused spicule canopY. (C) Dorsal valve interior with brachial bridge and calcitic pole broken off showing triangular base. (D) Lateral view of dorsal valve interior with prominent septum blade. (E) Close-up of partiallY infilled spicule canopY. (F) Close-up of broken base of calcitic pole and verY fine median spur on the cardinal process. Abbreviations: cpb, calcitic pole base; ms, median spur.