Marshall, 1918. The Tertiary Molluscan Fauna of Pakaurangi Point, Kaipara Harbour. Transactions and Proceedings of the New Zealand Institute, 50. (4.21 MB)
New Species-Group Names:
abruptus Marshall, 1918. p. 270. pl. xx. f. 7. 7a.
convexus Marshall, 1918. p. 270. pl. xx. f. 6. 6a.