Javier Couper (Predomalpha), New Zealand
Info
Diloma nigerrimum (Gmelin, 1791)
The solid, black, imperforate shell is roundish and somewhat flattened. The sculpture consists of numerous narrow spiral stripes, which are sometimes almost eroded. These are crossed by oblique growth lines, which are often strongly developed. The color of the shell is bluish-black or black. Specimens washed up on the beach can be reddish or brownish. The shell has no spots.
Diloma nigerrimum is eaten by larger predatory whelks.
Synonymised names:
Diloma nigerrima (Gmelin, 1791)
Monodonta crusoeana Pilsbry, 1889
Monodonta nigerrima (Gmelin, 1791)
Turbo nigerrimus Gmelin, 1791 (original combination)
Zediloma digna Finlay, 1926
Environment
The solid, black, imperforate shell is roundish and somewhat flattened. The sculpture consists of numerous narrow spiral stripes, which are sometimes almost eroded. These are crossed by oblique growth lines, which are often strongly developed. The color of the shell is bluish-black or black. Specimens washed up on the beach can be reddish or brownish. The shell has no spots.
Diloma nigerrimum is eaten by larger predatory whelks.
Synonymised names:
Diloma nigerrima (Gmelin, 1791)
Monodonta crusoeana Pilsbry, 1889
Monodonta nigerrima (Gmelin, 1791)
Turbo nigerrimus Gmelin, 1791 (original combination)
Zediloma digna Finlay, 1926
Environment
