Rishetia pertenuis pertenuis ( Blanford, 1865 ) Man & Ablett & Lwin & Sutcharit & Panha, 2024

Man, Nem Sian, Ablett, Jonathan D., Lwin, Ngwe, Sutcharit, Chirasak & Panha, Somsak, 2024, Contributions on a small collection of the former Subulinidae Fischer & Crosse, 1877 (Eupulmonata, Achatinoidea) with catalogue of the Glessula and Rishetia species recorded from Myanmar, ZooKeys 1208, pp. 173-239 : 173-239

publication ID

https://doi.org/ 10.3897/zookeys.1208.116083

publication LSID

lsid:zoobank.org:pub:0215503D-E8B4-4179-89F6-FB2CCC59F37E

DOI

https://doi.org/10.5281/zenodo.13138397

persistent identifier

https://treatment.plazi.org/id/FC8C1BBF-5612-5CE2-A97B-F3D1B1A13513

treatment provided by

ZooKeys by Pensoft

scientific name

Rishetia pertenuis pertenuis ( Blanford, 1865 )
status

comb. nov.

35 Rishetia pertenuis pertenuis ( Blanford, 1865) comb. nov.

Fig. 15 A – E View Figure 15

Achatina pertenuis Blanford, 1865: 79. Type locality: Tongoop, Arakan [Taungup Township, Rakhine State, Myanmar]. Pfeiffer 1868: 237. View in CoL

Achatina (Electra) pertenuis View in CoL — Hanley and Theobald 1870: 9, pl. 18, fig. 5.

Stenogyra (Glessula) pertenuis — Nevill 1878: 169.

Stenogyra (Subulina) pertenuis — Pfeiffer and Clessin 1881: 327.

Glessula pertenuis View in CoL — Beddome 1906: 160. Gude 1914: 380. Godwin-Austen 1920: 52–54, pls 164, fig. 11, pl. 159, figs 1, 2. Ramakrishna et al. 2010: 170.

Glessula tenuispira var. pertenuis View in CoL — Pilsbry 1909: 89, 90, pl. 9, fig. 3.

Type specimen.

Possible syntypes NHMUK 1906.2. 2.239 (7 shells; Fig. 15 A, B View Figure 15 ) ex. Blanford collection from Henzada, Pegu and Tongoop , Arakan .

Other material.

NHMUK 1888.12. 4.1229–31 (3 shells; Fig. 15 D, E View Figure 15 ) from Pegu. NHMUK 20230921 (5 shells) from Tongoop, Arakan (Fig. 15 C View Figure 15 ).

Diagnosis.

Shell slender, elongate turreted, and rapidly attenuated near apical whorls; apex rounded; subsequent whorls nearly smooth, fine growth lines, and with equally spaced ridges near suture. Suture impressed and whorls slightly convex. Aperture ovate; columella concave and truncated.

Distribution.

This species was reported from several places in Myanmar: Henzada [Hinthada City, Ayeyarwady Region], Thayet Myo [Thayet City, Thayet District, Magway Region], Pegu [Bago Region], and Tongoop, Arakan [Taungup Township, Thandwe District, Rakhine State] ( Nevill 1878; Gude 1914). It was also reported from Meghalaya State, India ( Ramakrishna et al. 2010).

Remarks.

The original description does not clearly state how many specimens were available to the author, although only one set of measurements was given. The NHMUK collection contains a lot of seven specimens from the Blanford collection with this species name. However, this is a mixed specimen lot of the same species as it consists of two collection localities, ‘ Henzada, Pegu’ and ‘ Tongoop, Arakan’, where only the latter was mentioned in the original description as the type locality. Therefore, this specimen lot NHMUK 1906.2. 2.239 is considered as possible syntypes, from which two specimens are illustrated herein.

NHMUK

Natural History Museum, London

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

SuperOrder

Eupulmonata

Order

Stylommatophora

SuperFamily

Achatinoidea

Family

Subulinidae

Genus

Rishetia

Loc

Rishetia pertenuis pertenuis ( Blanford, 1865 )

Man, Nem Sian, Ablett, Jonathan D., Lwin, Ngwe, Sutcharit, Chirasak & Panha, Somsak 2024
2024
Loc

Glessula pertenuis

Ramakrishna & Mitra SC & Dey A 2010: 170
Godwin-Austen HH 1920: 52 - 54
Gude GK 1914: 380
Beddome CR 1906: 160
1906
Loc

Stenogyra (Subulina) pertenuis

Pfeiffer L & Clessin S 1881: 327
1881
Loc

Stenogyra (Glessula) pertenuis

Nevill G 1878: 169
1878
Loc

Achatina (Electra) pertenuis

Hanley SCT & Theobald W (1870 1870: 9
1870
Loc

Achatina pertenuis Blanford, 1865: 79 . Type locality: Tongoop, Arakan [Taungup Township, Rakhine State, Myanmar ]. Pfeiffer 1868: 237 .

Pfeiffer L 1868: 237
Blanford WT 1865: 79
1865
Loc

Glessula tenuispira var. pertenuis

Glessula tenuispira var. pertenuis — Pilsbry 1909: 89, 90, pl. 9, fig. 3.