22 Nucella lapillus. Shell height 32.5mm. Mouth of Mersey Estuary, England. July 2014.

22 Nucella lapillus. Shell height 32.5mm. Mouth of Mersey Estuary, England. July 2014.

Translucent upper body showing 13: buccal mass: pink as rich in myoglobin; contains odontophore and anterior of radula used in rasping prey, 14: opaque white acinous salivary gland; secretes enzymes for external digestion/ liquefaction of prey and 15: yellow-brown gland of Leiblein; secretes enzymes for internal digestion.
(Numbers correlate with key to anatomy below images Nl 35-38.)
Tentacles contracted.