Opisthoporus birostris (L. Pfeiffer, 1854)

Marzuki, Mohammad Effendi bin, Liew, Thor-Seng & Mohd-Azlan, Jayasilan, 2021, Land snails and slugs of Bau limestone hills, Sarawak (Malaysia, Borneo), with the descriptions of 13 new species, ZooKeys 1035, pp. 1-113 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.1035.60843
publication LSID	lsid:zoobank.org:pub:ED19022E-A170-4DB7-9587-FEFE15D07854
persistent identifier	https://treatment.plazi.org/id/B4A99D04-E014-51DF-9A9F-1764CE95B72B
treatment provided by	ZooKeys by Pensoft (2021-04-28 13:39:49, last updated 2024-11-26 10:12:19)
scientific name	Opisthoporus birostris (L. Pfeiffer, 1854)
status

Treatment

Opisthoporus birostris (L. Pfeiffer, 1854) View in CoL Figures 7B View Figure 7 , 46D View Figure 46

Cyclostoma birostre Pfeiffer, 1854b: 300.

Type locality.

"Sarawak, Borneo".

Material examined.

Bukit Sekunyit: ME 4735. Gunung Doya: ME 1312. Gunung Kapor: ME 4731, ME 4736, ME 4737, ME 8072, ME 8495, ME 8755, ME 8758, ME 9605. Lobang Angin: ME 4738. Gunung Batu: ME 4732, ME 4734, ME 4739, ME 8830.

Distribution in Borneo.

Sarawak: Kuching Division. Endemic to Borneo.

Remarks.

Living snails were observed foraging among leaf litter and plant debris near the cliff in lowland limestone forest. It differs from other Bornean Opisthoporus species by having a large shell, short sutural tube projecting downwards, and a thick brown periostracum can be seen on fresh shells.

Figures

Figure 7. A Opisthophorus biciliatus (Mousson, 1849) ME 8754 Gunung Kapor B Opisthophorus birostris (L. Pfeiffer, 1854) ME 8758 Gunung Kapor C Opisthophorus cavernae (Godwin-Austen, 1889) ME 8904 Gunung Doya D Opisthophorus euryomphalus (L. Pfeiffer, 1856) ME 8779 Gunung Kapor E Platyrhaphe linita (Godwin-Austen, 1889) ME 0881 Gunung Batu F Pterocyclos tenuilabiatus (Metcalfe, 1851) ME 5910 Gunung Batu.

Figure 46. Living snails from Bau A Japonia barbata (L. Pfeiffer, 1855) ME 8768 Gunung Kapor B Opisthophorus euryomphalus (L. Pfeiffer, 1856) ME 8779 Gunung Kapor C Opisthophorus biciliatus Mousson, 1849 ME 8754 Gunung Kapor D Opisthophorus birostris (L. Pfeiffer, 1854) ME 8755 Gunung Kapor. All not to scale.