Southwest Florida Shells with Emphasis on Sanibel & Captiva
José H. Leal
Shell size to 7 mm; shell small, narrow, triangular. Sculpture of 12-15 ribs squarish in cross-section. Interspaces much narrower. Umbo not central, displaced to the side. Color whitish or pinkish with brown chevron-like markings. Interior of valves mostly brown.