Cyclostoma ( Cyclophorus ?) lignarium Pfeiffer, 1857

Pl. 1, fig. B

Pfeiffer, 1857. Proceedings of the Zoological Society of London, 25 (1857): 112.

Type material: Lectotype NHMUK 1968851 /1 and paralectotypes (2), NHMUK 198851 /2–3 (dry shell material); ex. Museum Cuming (Acc. no. 1829) . Lectotype designated by Marshall & Barker (2007: 84).

Label details: ‘ Cyclophorus ? lignarius Pfr New Zealand’—in Pfeiffer’s handwriting.

Type locality: ‘New Zealand’ (Pfeiffer, 1857b: 112).

Previous illustrations of type material: Reeve (1861: pl. 19, fig. 94).

Remarks: Historically there was confusion over the identity of Cyclostoma lignarium, as shown in the synonymy of Marshall & Barker (2007: 84). Earlier workers had mis-applied Pfeiffer’s name to a species from the southern North and northern South Islands that Marshall & Barker (2007) subsequently named Cytora kamura . The latter authors noted that Murdochia ampla Powell, 1941 is a junior subjective synonym of Cyclostoma lignarium Pfeiffer, 1857 .

Current Taxonomy: Listed as Cytora lignaria (Pfeiffer, 1857) by Marshall & Barker (2007: 84) and Spencer et al. (2009: 203).

Distribution: New Zealand; northernmost North Island (Marshall & Barker 2007).