Pupatonia gracilispira explained

Pupatonia gracilispira is a species of marine gastropod mollusc in the family Eatoniellidae.^[1] First described by Baden Powell in 1933 as Estea gracilispira, it is endemic to the waters of New Zealand.

Description

Powell described the species as follows:

Pupatonia gracilispira measures 1.1mm, by 0.525mm.^[2] The species is similar in appearance to Pupatonia mimitula, but differs by having a narrower spire, and by having a smooth and polished texture.

Distribution

The species is endemic to New Zealand.^[1] The holotype and four paratypes were collected by either Powell himself or by C. A. Fleming in February 1933, from a depth of 18 metres off Owenga Beach in the Chatham Islands. The species has almost exclusively been identified in the Chatham Islands,^[3] however has also been identified at Waipapa Point in the south of the South Island,^[4] and the Auckland Islands.^[5]

Notes and References

1. Pupatonia gracilispira Powell, 1933 . 2022 . 598472 . Marine Mollusca . 22 November 2022.
2. Web site: Pupatonia gracilispira . New Zealand Mollusca . 22 November 2022.
3. Dell. RK. Biological Results of the Chatham Islands 1954 Expedition Part 4: Marine Mollusca . New Zealand Department of Scientific and Industrial Research Bulletin . 2538-1016 . 139 . 4 . 1960 . 22 November 2022.
4. Web site: Pupatonia gracilispira (Powell, 1933) . . 19 November 2022.
5. Web site: Pupatonia gracilispira (Powell, 1933) . . 19 November 2022.