Citations:lirulae


 * 1918, University of California Publications in Zoology, page 313:
 * Surface either with (1st) a few (2-4) strong lirae above, their interspaces smooth, the base with about 8 concentric lirulae, or (2nd) more numerous narrow irregular lirulae above, those of the base still smaller, or (3rd) the spiral sculpture ...
 * 1958, Katherine Van Winkle Palmer, Type Specimens of Marine Mollusca Described by P.P. Carpenter from the West Coast (San Diego to British Columbia), Geological Society of America (ISBN 9780813710761), page 138:
 * Species most ornate, with delicate sculpture. Umbilicus with 3 internal spiral lines, crossed by lirulae: operculum sculptured.
 * 1985, Piet Kaas, Richard A Van Belle, Monograph of Living Chitons: (Mollusca: Polyplacophora), BRILL (ISBN 9789004074149), page 142:
 * The position of the mucro, and the number of granulose lirulae on the ante-mucronal area, however, are exactly in accordance with those of columnarius. The dorsal elevation of the intermediate valves varies from 0.54 - 0.86