Fig. 7

Photographs of the soft parts of adult Chrysomallon squamiferum. a. Dorsal view with shell and part of mantle removed, showing the ctenidium, heart, and associated blood vessels. b. Sagittal section; white arrows indicate sections of the hindgut showing white, chalky material inside. c. Transverse section through the ctenidium showing a pair of blood sinus (white arrows). d. Sagittal section through ventricle showing muscle bundles. e. Transverse section of the visceral mass showing testis, ovary, and nephridium; white arrowhead indicates spermatophores inside the ‘spermatophore producing organ’. f. Packaged spermatophore (white arrow). g. ‘Spermatophore producing organ’. h. Pedal nerve cords, fused neural mass at anterior and numerous lateral offshoots distally into the foot. Abbreviations: a, auricle; ct, ctenidium; ne, nephridium; og, oesophageal gland; ov, ovary; re, rectum; sp, ‘spermatophore producing organ’; te, testis; v, ventricle; ve, blood vessel. Scale bars: a-c, e-f, h = 5 mm, d, g = 2 mm