35 Ocenebra erinaceus COMPARE Nucella lapillus

35 Ocenebra erinaceus COMPARE Nucella lapillus

Some Nucella lapillus have distinct spiral ridges; about 2 on the spire whorls and about 10 on the body-whorl.
Height 25 mm, breadth 17.4 mm. Exposed coast, Orkney, July 1973.
: flic.kr/p/2op3qCC
Sets of OTHER SPECIES:
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