As the name suggests (pecten novaexelandiae), this species is endemic to New Zealand. It can be found around the North Island, South Island, Stewart Island and the Chatham Islands. It prefers sandy and muddy seabeds, and like many other scallop species, it is hermaphroditic, meaning it has the ability to self-reproduce.

It can reach a maximum length of 12 cm and features two asymmetrical valves that differ in shape: the upper valve is convex, while the lower valve is flat. Both valves have lateral extensions known as auricles, and display radial ribs radiating from the hinge. Growth lines are also clearly visible on the surface.

As with other species, the shell color can vary, but it often shows white, grey, red, or yellow tones. It is common to find shells with a blend of multiple hues, giving them a distinctive and colorful appearance.