Pollicaria rochebruni (Mabille, 1887)
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https://dx.doi.org/10.3897/zookeys.287.4617 |
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https://treatment.plazi.org/id/6B02F6AB-9E68-889B-7073-A28036030068 |
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Pollicaria rochebruni (Mabille, 1887) |
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Pollicaria rochebruni (Mabille, 1887) Figs 5D, E View Figure 5 6E View Figure 6 Tables 1 View Table 1 2 View Table 2
Hybocystis rochebruni Mabille, 1887a: 12. Type locality: Tonkin. Mabille 1887b: 138, 139, pl. 2, figs 12, 13.
Pollicaria rochebruni -Kobelt, 1902: 290.
Material examined.
Four specimens of the syntype deposited in MNHN, the figured specimen in original publication is designated here as the lectotype of Hybocystis rochebruni Mabille, 1887 MNHN 21305 ( Fig. 5D View Figure 5 ) and other specimens as paralecto type MNHN 25855. Bac Ma National Park, Vietnam: CUMZ 1556. Hulien Nature reserve, Vietnam: CUMZ 1594. Khe Sen, Danang, Vietnam: CUMZ 1589. Phuong Nga National Park, Quang Binh, Vietnam: CUMZ 1523, 1539, 1552, 1568 ( Fig. 5E View Figure 5 ). Cuc Phuong National Park, Ninh Binh, Vietnam: CUMZ 1532, 1568, 1573, 1587.
Description.
Shell: Shell medium-sized, pupoid, red-brown. Periostracum thick, corneous; shell surface smooth. Whorls 5-6; sutures moderately impressed; apex obtuse; spire short. Last whorl large about two-thirds of shell height, distorted and flattened in front, ventrally rounded. Aperture rounded, shallow to absent posterior angled groove present. Peristome continuous, with thin parietal declining shoulder internally. Lip thickened, little expanded, margin moderately duplicated with thin growth ridges; umbilicus narrow. Operculum concentric, thick, calcareous, multi-spiral plate.
Radula: Taenioglossate radula, teeth arrangement with marginal teeth shape similar to Pollicaria myersii . Major differences are in the central teeth which have multiple cusps: the central cusp relatively short and small, flanked by 1-3 tapered lateral cusps; and inner marginal teeth with 3 cusps: the central cusp large with a convex tip, flanked by small and pointed inner cusps, the outer lateral cusp very small to nearly wanting.
Distribution.
The previous records of this species were from Tonkin ( Mabille 1887a, b); Babe National Park, Bac Kan, Vietnam ( Yamazaki et al. 2007)
Remarks.
Based on the similarity in shell morphology, Pain (1974) placed Pollicaria rochebruni into the synonymy of Pollicaria gravida . However, examination of the type specimens of Pollicaria rochebruni indicate that it is a distinct species (see also Pollicaria gravida ). Pollicaria rochebruni can be distinguished from the latter species by having a larger red-brown to purple-black shell with flattened whorls and shallow sutures, while Pollicaria gravida usually has smaller pale orange shell with convex whorls and impressed sutures ( Tables 1 View Table 1 , 2 View Table 2 ). Pollicaria rochebruni differs from the sympatric Pollicaria crossei in both shell size and colour ( Tables 1 View Table 1 , 2 View Table 2 , Fig. 5F View Figure 5 ) as well as having a distinct karyotype pattern (see Kongim et al. 2010).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Pollicaria rochebruni (Mabille, 1887)
| Kongim, Bangon, Sutcharit, Chirasak, Naggs, Fred & Panha, Somsak 2013 |
Hybocystis rochebruni
| Mabille 1887 |