Papawera zelandiae ( Gray 1843 )

Oskars, Trond R. & Malaquias, Manuel António E., 2020, The temperate Australasian genus Papawera Oskars and Malaquias, 2019 (Gastropoda: Cephalaspidea: Haminoeidae), with a redescription of P. zelandiae and P. maugeansis, Journal of Natural History 54 (21 - 22), pp. 1343-1362 : 1348-1352

Papawera zelandiae ( Gray 1843)

Figures 2 (a), 3 (a–c), 4, 5

Bulla zelandiae Gray, 1843, p. 243 . Haminea zelandiae – E. A. Smith 1873, p. 5. Kobelt 1896, p. 118. Suter 1913, p. 538.

Haminea zelandica (misspelled) – Pilsbry 1895, p. 373 (as synonym of Haminea pemphix ). Haminea pemphix (misspelled) – Pilsbry 1895, p. 373.

Haminoea zelandiae – Rudman 1971a, p. 545 –559., 1971b, p. 647–675. Hayward 1979, p. 175. Powell 1979, p. 275. Willan 1979, p. 269. Rudman 1999. Furneaux 2003. Rudman 2003. Morley and Hayward 2015, p. 57.

Haminea obesa Sowerby II in Reeve 1868: no page numbers, pl. 2, fig.13.

Papawera zelandiae – Oskars and Malaquias 2019, p. 6.

Diagnosis

Animal light grey or brown to completely black. Shell rounded, bulbous; smooth with faint growth lines; whitish-translucent in colour; periostracum transparent to yellowish; aperture wide, tapering posteriorly, columella thick, separated from last whorl by short furrow, furrow covered by callus posteriorly. Cephalic shield, broad, shallowly bilobed; large parapodial and pallial lobes covering nearly whole shell; periocular area pigmented or small, unpigmented. Hancock’s organ thick ridge, with prominent dorsal and ventral branches. Radula formula 16–25 x 27–22.1.1.1.22–27; rachidian tricuspid, central cusp triangular, narrow, pointed; lateral cusps, reduced, barely raised form base. Gizzard plates with 8–16 transverse ridges; minute rods present along upper inner part of posterior side of ridges and rachis only; rachis present. Male reproductive system with oblong, tapering, annulated prostate, fundus semi-enclosed with glandular epithelium. Distribution restricted to New Zealand ( Gray 1843; Sowerby 1868; Pilsbry 1895 b; Rudman 1971a; 1971b, 1999, 2003; Rudman 2006; Furneaux 2003).

Type locality

New Zealand ( Gray 1843). Holotype untraceable; iconotype illustrated in Smith (1873, p. 5, Table 1, fig. 10).

Material examined

New Zealand, 1 shell, Haminea obesa Sowerby 1868 , holotype, NHMUK 20170322 ; H = 17 mm . New Zealand, Auckland, Waitemata Harbour , 3 specimens (1 dissected, 3 sequenced), AM 119920 , H = 11 mm . New Zealand, Waitemata Harbour, Herne Bay , AMS c .159944, H = 22 mm. New Zealand, Auckland, Manu Kau Harbour , 7 shells, NHMUK unnumbered, Col . Cornwallis in 1946, Stratton Collection Acc . No . 1894, H = 19 mm. New Zealand, Northland, Hokianga , 3 specimens (2 dissected), AM 79176 , H = 11 – 14 mm . New Zealand, South Island , Awarua, 1 shell, AMS c .457260, H = 27 mm.

Figures

Figure 2. Female reproductive system. (a) Papawera zelandiae, Hokianga, Northland, New Zealand, (AM 79176, H = 11 mm). (b) Papawera maugeansis, Curlewis Reef, Clifton Springs, Victoria, Australia (ZMBN 125459 ex NVM F194630, H = 5.7 mm). Abbreviations: agl, albumen gland. am, ampulla. amg, anterior mucous gland. gd, gameloytic duct. ggl, gametolytic gland. md, medial duct. ot, ovotestis. pmgl1, posterior mucous gland lobe 1, pmgl2, posterior mucous gland lobe 2. rm, retractor muscle. smg, external seminal groove. v, vestibule. Scale bars: a, b = 0.5 mm.