Vitrina ultima Mousson, 1873

Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 67

Vitrina ultima Mousson, 1873

Pl. 7, fig. G

Mousson, 1873. Journal de Conchyliologie, 21: 110, pl. 7, fig. 1.

Type material: Syntypes, ZMZ 500890 (8), ZMZ 500934 (2) (dry shell material).

Label details: ‘Helic. ultimus Mss. 34, Sunday I. (Graeffe 71)’, ‘Helic. ultimus Mss. 34, Sunday I. (Graeffe 72)’, in Mousson’s handwriting.

Type locality: ‘Sunday Island’ ( Mousson 1873: 110).

Previous illustrations of type material: Mousson (1873: pl. 7, fig. 1); Tryon (1885 [from Mousson 1873]: pl. 35, figs. 9, 10).

Remarks: The type material was sent to the Museum Godeffroy in Hamburg by the naturalist Dr. Edouard Graeffe, but when it was collected, and by whom, was not stated ( Mousson 1873: 110). Vitrina kermadeensis Smith, 1873 and Vitrina ultima Mousson, 1873 are conspecific, according to Iredale (1913). Smith’s description was published on 1 April 1873 (see Evenhuis 2003: 26), and Mousson’s on 18 April 1873 ( Fischer-Piette 1937: 90), so Smith’s name has priority, as noted by Iredale (1913: 364).

Current Taxonomy: Treated as a subjective junior synonym of Vitrina kermadecensis E. A. Smith, 1873 by Iredale (1913: 364).