Belongs within: Mitridae.
Proximitra is a primarily Australasian group of mitre shells (with Tertiary fossil representatives known elsewhere) with a relatively low, turreted spire and more or less strongly shouldered whorls.
<==Proximitra Finlay 1927P61
|--*P. rutidoloma (Suter 1917) [=Vexillum rutidolomum]B70
|--P. apicalis (Hutton 1873) [=Vexillum apicale]F27a
|--P. banksi Dell 1951P61
|--P. enysi (Hutton 1873) [=Vexillum enysi]F27a
|--P. fracta (Marwick 1926)C75
|--P. mortenseni (Odhner 1924)P61 [=Mitra mortenseniF27a]
|--P. parki (Allan 1926) [=Vexillum parki]F27a
|--P. pica [=Mitra pica]F27a
|--P. plicatellum (M. & M. 1923) [=Vexillum plicatellum]F27a
`--P. suteri (Finlay 1924)F27a [=Vexillum suteriF27a, V. ligatum Suter 1917 (preoc.)F27b]
*Type species of generic name indicated
References
[B70] Beu, A. G. 1970. Bathyal Upper Miocene Mollusca from Wairarapa district, New Zealand. Transactions of the Royal Society of New Zealand, Earth Sciences 7 (12): 209–240.
[C75] Cernohorsky, W. O. 1975. The taxonomy of some Indo-Pacific Mollusca. Part 3. With descriptions of new taxa and remarks on an Ecuadorian fossil species of Turridae. Records of the Auckland Institute and Museum 12: 213–234.
[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.
[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488–533.
[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.