. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 55, Part 2, 1956. PLATE 31 Nassarius hildegardae sp. nov. Holotype Co. Museum #1110 Nassarius hildegardae sp. nov. Holotype: The holotype No. 1110 in the Los Angeles County Museum collected by the author May 10, 1954 (pi. 31). Type Locality: LACMIP 291. Age and Formation: Upper Pliocene, Pico formation. Diagnosis: Shell smallest in the genus, elongate-conic; whorls seven, flattened-convex, four of them with nigosely cancellated sculpture; ribs
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 55, Part 2, 1956. PLATE 31 Nassarius hildegardae sp. nov. Holotype Co. Museum #1110 Nassarius hildegardae sp. nov. Holotype: The holotype No. 1110 in the Los Angeles County Museum collected by the author May 10, 1954 (pi. 31). Type Locality: LACMIP 291. Age and Formation: Upper Pliocene, Pico formation. Diagnosis: Shell smallest in the genus, elongate-conic; whorls seven, flattened-convex, four of them with nigosely cancellated sculpture; ribs 12 on the fourth whorl, 13 on the fifth, 15 on the sixth and 16 on the body whorl, crossed by overlying thinner, raised uniform spiral ridges; 4 on the fourth whorl, 6 on the fifth whorl, 5 on the sixth, and 8 on the body whorl, forming bead-like effect on the crossing, and rhomboid cavities in the interspaces; spire acuminated at 40 degrees; first three whorls bare, forming a simple, smooth nucleus; sutures deeply incised; aperture narrow- ly-oval, its axis at 25 degrees to the axis of the shell; inner lip thick, reflected, free, with 2 bar-like tubercles at the anterior end, and 3 round tubercles at the posterior end; outer lip thick, with 6 bar- like tubercles evenly spaced throughout its inner length; canal short, broad; siphonal notch profound. The holotype, a large adult, measures: length mm., breadth mm., and length of the aperture (canals included) mm. 113. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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