Special cases: - Rapana venosa has different colors for inner and outer sides of the shell, by testing the signed area of projected quadrilateral patch - Oliva mustelina has alternating shear patterns vertically on the shell that produce "parallelograms"
64
65
[middle] Neptunea cumingii (香螺, fragrant snail)
66
107
[top left] Babylonia areolata (花螺, flower/patterned snail)
108
145
[bottom left] Melo melo (吊螺, hanging snail? I found little relevant results by searching this name, some internet sources call it 椰子螺, coconut snail)
146
183
[bottom right] Rapana venosa (骨螺, bone snail, murex)
184
223
[top right] Oliva mustelina (榧螺, torreya snail?)
224
262
263
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