Pupinella mansuyi (Dautzenberg & Fischer, 1908)

Jirapatrasilp, Parin, Sutcharit, Chirasak & Panha, Somsak, 2022, Annotated checklist of the operculated land snails from Thailand (Mollusca, Gastropoda, Caenogastropoda): the family Pupinidae, with descriptions of several new species and subspecies, and notes on classification of Pupina Vignard, 1829 and Pupinella Gray, 1850 from mainland Southeast Asia, ZooKeys 1119, pp. 1-115 : 1

Pupinella mansuyi (Dautzenberg & Fischer, 1908)

Figs 10A , 11A-G , 12A-C

Eupupina mansuyi Dautzenberg & Fischer, 1908: 207, 208, pl. 6, figs 12-15. Type locality: Deux-Ponts [in northeastern Vietnam]; Quang-Huyen [Quang Uyen, Cao Bang Province, Vietnam].

Pupina mansuyi - Saurin 1953: 113, environs du village méo de Pah Hia, à 100 kilomètres au Sud de Xieng-Khouang, chef-lieu de la province du Tran Ninh, Laos [probably refers to Ban Namthong, Longchaeng District, Xaisomboun Province, Laos]. Fischer 1963: 33.

Pupinella mansuyi - Do et al. 2015: 128, fig. 7c, Son La Province, Vietnam. Inkhavilay et al. 2019: 46, 47, fig. 16d.

Pupinella frednaggsi Thach & Huber in Thach, 2017: 19, 20, figs 124-130. Type locality: suburb of Luang Phrabang, Laos. Inkhavilay et al. 2019: 46, figs 16b, c, 18h, Tam Phatok Cave, Ngoy District, Luang Phrabang Province. Páll-Gergely et al. 2020: 41, Nam Wu, Ban Pak Ou, Luang Phrabang Province. Syn. nov.

Pupinella franzhuberi Thach, 2020: 21, figs 161-165. Type locality: Luang Prabang, Laos. Syn. nov.

Type material examined.

Syntype of Eupupina mansuyi MNHN-IM-2000-30756 from Deux-Ponts (1 shell; Fig. 11A , Inkhavilay et al. 2019: fig. 16d). Syntypes of Eupupina mansuyi MNHN-IM-2000-36067 (10 shells; Fig. 11B ) from Deux-Ponts. Syntypes of Eupupina mansuyi MNHN-IM-2000-36068 (5 shells; Fig. 11C ) from Quang-Huyen. Syntypes of Eupupina mansuyi RBINS MT970/1 (5 shells; Figs 11D , 12A ) from Quang-Huyen. Holotype of Pupinella frednaggsi NHMUK 20170285 (Fig. 11E , Inkhavilay et al. 2019: fig. 16b). Holotype of Pupinella franzhuberi MNHN-IM-2000-35510 figured in Thach (2020: figs 161-165).

Other material examined.

CUMZ 12148 (38 shells; Figs 10A , 11F , 12B ) from Pha Chu , Na Noi District, Nan Province, 12 Jan. 2008 . CUMZ 12149 (3 specimens in ethanol; Figs 11G , 12C ) from Pha Tub Cave , Mueang Nan District, Nan Province, 11 Oct. 2009 . CUMZ 12150 (15 specimens in ethanol) from Pha Tub Cave , Mueang Nan District, Nan Province, 24 Aug. 2014 . CUMZ 12151 (1 shell) from Pha Tub Cave , Mueang Nan District, Nan Province, 22 Feb. 2019 . CUMZ 12152 (2 shells) from Tham Phajarui Temple, Pa Daet District , Chiang Rai Province, 25 Oct. 2008 . CUMZ 12153 (66 shells) from Tham Phra Bamphen Bun Temple, Phan District , Chiang Rai Province, 29 Nov. 2009 .

Diagnosis.

Shell fusiform; last whorl ca. 60% of shell height. Apertural lip highly expanded and reflected; inner peristome thickened and cord-like; apertural lip when observed from lateral view almost straight. Parietal callus thickened and cord-like. Parietal tooth fin-shaped, highly thickened, covering posterior canal. Anterior canal funnel-like. Umbilicus closed.

Differential diagnosis.

Pupinella mansuyi can be distinguished from all other species in mainland Southeast Asia by a highly expanded and reflected apertural lip with a thickened, cord-like inner peristome. Comparing to P. sonlaensis and P. thaitranbaii , this species has a thicker and more cord-like parietal callus as well as a thicker fin-shaped parietal tooth.

Distribution.

Northern Vietnam ( Do et al. 2015), Luang Phrabang Province, Laos ( Inkhavilay et al. 2019; Páll-Gergely et al. 2020), Nan and Chiang Rai provinces, northern Thailand.

Remarks.

Upon examining the type specimens of P. mansuyi , P. frednaggsi , and P. franzhuberi , the holotypes of P. frednaggsi and P. franzhuberi agree well with all the type specimens of P. mansuyi in having a fusiform shell shape, a highly expanded and reflected apertural lip with a thickened cord-like peristome, parietal callus, and a highly thickened, fin-shaped, parietal tooth covering the posterior canal. Moreover, the distinctions of P. frednaggsi and P. franzhuberi from P. mansuyi as indicated in the original descriptions should be treated as infraspecific variation. Thus, P. frednaggsi and P. franzhuberi are regarded herein as junior subjective synonyms of P. mansuyi . The absence of a columellar tooth in the syntype of Eupupina mansuyi from Deux-Ponts (Fig. 11A ) is likely due to teratological conditions. This species has a wide distribution range from northern Vietnam to northern Thailand. The distribution of this species in Thailand is provided in Fig. 7 .

Figures

Figure 7. Map of northern Thailand showing the distribution of Pollicaria mouhoti mouhoti (filled circle), Pollicaria mouhoti monochroma (open circle), Pseudopomatias caligosus (square), Pseudopomatias doiangkhangensis sp. nov. (hexagon), Pseudopomatias pallgergelyi sp. nov. (triangle), Pupinella mansuyi (cross), and Rhaphaulus tonkinensis (star). Each red symbol indicates the type locality of its respective taxon. The red filled circle denotes the type locality of Pollicaria nicoarlingi.

Figure 10. Umbilical, columellar and parietal views of A Pupinella mansuyi, specimen CUMZ 12148 from Pha Chu, Nan B Pupina artata from the Pupina artata species group, specimen CUMZ 12003 from Ban Ping Khong, Chiang Mai C Pupina godwinausteni sp. nov. from the Pupina arula species group, holotype CUMZ 12090 / 1 D Pupina aureola from the Pupina aureola species group, specimen CUMZ 12130 from Sra Morakot, Krabi.

Figure 11. Shells of Pupinella species from mainland Southeast Asia. A-G Pupinella mansuyi: A syntype of Eupupina mansuyi MNHN-IM- 2000 - 30756 from Deux-Ponts B syntype of Eupupina mansuyi MNHN-IM- 2000 - 36067 from Deux-Ponts C syntype of Eupupina mansuyi MNHN-IM- 2000 - 36068 from Quang-Huyen D syntype of Eupupina mansuyi RBINS MT 970 / 1 from Quang-Huyen E holotype of Pupinella frednaggsi NHMUK 20170285 F specimen CUMZ 12148 from Pha Chu Mount, Nan, and G specimen CUMZ 12149 from Pha Tub Cave, Nan H Pupinella sonlaensis, paratype ZRC. MOL. 9377 I-L Pupinella illustris I, J syntypes of Pupina illustris MNHN-IM- 2000 - 35842 from Tonkin K lectotype of Pupina tonkiniana MNHN-IM- 2000 - 35838 from Lang-Son et That-Khe, and L paralectotype of Pupina tonkiniana SMF 109932 / 10 from Tonkin: That-khe. Photo: A. Lardeur, P. Maestrati, MNHN (A-C, I-K), F. Trus, RBINS (D), S. K. Tan, ZRC (H).

Figure 12. A-C Pupinella mansuyi: A syntype of Eupupina mansuyi RBINS MT 970 / 1 from Quang-Huyen B specimen CUMZ 12148 from Pha Chu Mount, Nan, and C specimen CUMZ 12149 from Pha Tub Cave, Nan. D, E Pupinella illustris D syntype of Pupina illustris MNHN-IM- 2000 - 35842 from Tonkin and E paralectotype of Pupina tonkiniana SMF 109932 / 10 from Tonkin: That-khe F Pupinella sonlaensis, paratype ZRC. MOL. 9377. Photo: F. Trus, RBINS (A), P. Maestrati, MNHN (D), S. K. Tan, ZRC (F).