Engina armillata ( Reeve, 1846:111 )

Lam, Katherine, Morton, Brian & Leung, K. F., 2008, Shell-bearing Mollusca (Bivalvia and Gastropoda) from submarine caves in Hong Kong, Journal of Natural History 42 (9 - 12), pp. 927-952 : 943

Engina armillata ( Reeve, 1846:111)

( Figure 4I, J )

Description

Shell biconical, thick with axial ribs crossed by spiral grooves creating rows of granules. White with spiral, thin dark bands. Aperture white with denticles on the outer lip.

Type locality

‘‘Indo O, Pacifique’’, Indian Ocean, Pacific.

Distribution

Indo-Pacific, South China Sea. Occurs under stable boulders and feeds on serpulid polychaetes ( Tan and Morton 1998).

Bivalve endobenthos of the cave floor sediments

Figures

Figure 4. A and B, Diodora quadriradiata, height×length565.5×14.22 mm; C and D, Cypraea arabica arabica juvenile, height×width510.32×4.88 mm; E and F, Ergalatax contracta, height×width514.58×6.7 mm; G and H, Thais luteostoma, height×width5 24.83×16.22 mm; I and J, Engina armillata height×width58.35×4.67 mm.