Gomphina maorum
NameGomphina maorum
Scientific NameGomphina maorum
Common NameNew Zealand Sunset Shell
FamilyVeneridae
GenusGomphina
Speciesmaorum
Geographic DistributionEndemic to New Zealand.
Habitatintertidal
Average Size (mm)Ranges from approximately 30 mm to 60 mm in length.
Identifying FeaturesSmooth, glossy shell surface; distinct concentric growth lines; ovate-trigonal shape; characteristic color patterns of radiating or zigzag lines on a pale background. The presence of a drill hole, as seen in the image, is a common sign of predation but not an inherent feature of the species.
Dietfilter-feeder
Raritycommon
Author CitationE.A. Smith, 1885
Description
Gomphina maorum, commonly known as the New Zealand Sunset Shell, is a medium-sized marine bivalve belonging to the Venus clam family. The shell is characterized by its ovate-trigonal shape, smooth and glossy surface, and often vibrant color patterns. This particular specimen displays a pale cream to yellowish base color with subtle, irregular reddish-brown markings, and prominent concentric growth lines. A notable feature on this specific shell is a perfectly circular drill hole, indicative of predation by a carnivorous gastropod.
