Pollicaria mouhoti mouhoti (Pfeiffer, 1862)

Kongim, Bangon, Sutcharit, Chirasak, Naggs, Fred & Panha, Somsak, 2013, Taxonomic revision of the Elephant Pupinid snail genus Pollicaria Gould, 1856 (Prosobranchia, Pupinidae), ZooKeys 287, pp. 19-40 : 30-31

Pollicaria mouhoti mouhoti (Pfeiffer, 1862) Figs 2B 3A_E 4H, I 6B Tables 1 2

Material examined.

Three syntype shells in H. Cuming collection, the figures and labels with type specimen are designated here as the lectotype of Hybocystis mouhoti Pfeiffer, 1862 NHMUK 20130071/1 (height 34.2 mm, width 18.1 mm; Fig. 4H ) and paralectotype NHMUK 20130071/2-3 (2 shells). Cambodia: ZMA Wright colln. (2 shells), R.v. Lennep colln. (1 shell). Laos Mountain: ZMB Paetel colln. (1 shell). Phu Kradung, Loei: CUMZ 1586. Namnao National Park, Phetchabun: CUMZ 1574, 1538; ZMMSU 0002. Tam Yai Namnao, Phetchabun: CUMZ 1559. Phu Phaman, Khon Kaen: ZMMSU 0012. Phu Kiew Wildlife Sanctuary, Nongbuadang, Chaiyaphum: CUMZ 1528, 1529, 1551, 1571, 1576, 1582, 1585; ZMMSU 0003, 0020-4, 0027, 0029. Phu Phachit, Chaiyaphum: ZMMSU 0013. Tam Tao, Nernmaprang, Phitsanulok: CUMZ 1558. Tam Wungdang, Nernmaprang, Phitsanulok: CUMZ 1533 ( Fig. 4I ), 1537, 1544, 1554, 1575. Wat Pa Mamuang, Nernmaprang, Phitsanulok: CUMZ 1541; ZMMSU 0015. Wat Thepitakpunnaram, Pakchong, Nakhon Ratchasima: CUMZ 1583. Tam Pu Loop, Phuphaman, Khon Kaen: CUMZ 1526. Namprom Dam, Khon Kaen: CUMZ 1584.

Description.

Shell: This nominotypical subspecies is characterized by the large shell size ( Table 2 ). Shell with last whorl and penultimate whorl purple to black; first to third whorls distinct yellow to bright orange. Lip expanded, red to orange.

Radula: Taenioglossate radula, teeth arrangement with central, lateral and marginal teeth shape similar to Pollicaria myersii . Differences include a central tooth with well developed central cusp and lateral cusp on each side; lateral teeth triangular in shape with a pointed tip; inner marginal teeth composed of 3 cusps; central cusp flanked with small inner and outer lateral cusps.

Distribution.

This subspecies occupies the southern limit of the species’ range in Cambodia and several localities in Loei, Phitsanulok, Chaiyaphum, Khon Kaen, Phetchabun Nakhon Ratchasima and Saraburi Provinces in Thailand.

Remarks.

The characters distinguishing this nominotypical subspecies from Pollicaria myersii are the smaller shell size and mainly purple coloured shell with whorls 2-3 pale to bright orange and bright orange to red lip ( Tables 1 , 2 ), and a distinct karyotype pattern ( Kongim et al. 2009, 2010).

Figures

Figure 2. Living snails. A Pollicaria myersii from Pahom, Vang Vieng, Laos (CUMZ 1572; shell height about 40 mm) B Pollicaria mouhoti mouhoti from Tam Wungdang, Phitsanulok (CUMZ 1533; shell height about 35 mm) C Pollicaria mouhoti monochroma ssp. n. from the type locality (paratype CUMZ 1548; shell height about 30 mm) D Pollicaria elephas from Ipoh, Perak, Malaysia (CUMZ 1536; shell height about 45 mm).

Figure 3. General anatomy, genitalia and spermatophore of Pollicaria mouhoti mouhoti. A Right side of snail showing male genital organ B Left side of snail showing pallial cavity and circulatory system C Male genital organ D Female genital organ E Spermatophore from uterus.

Figure 4. Shell morphology of Pollicaria spp. A-E Pollicaria gravida A lectotype UMZC I. 102935. A B paralectotype UMZC I. 102935. B-E C syntype of Otopoma blennus Benson, 1856 UMZC I. 102930. A and D, E specimens from Farm Caves, Moulmein, Burma (NHMUK 88.124.863.4 - 5; specimen with ' x' was figured in Gude (1921), fig. 29) F, G Pollicaria myersii F form Siam (NHMUK 20090242; specimen figured in Pfeiffer, 1856 a, pl. 19, figs 1, 2), and G specimen from Pahom, Vang Vieng, Laos (CUMZ 1572) H, I Pollicaria mouhoti mouhoti H lectotype (NHMUK 20130071 / 1), and I specimen from Tam Wungdang, Phitsanulok (CUMZ 1533) J, K Pollicaria mouhoti monochroma ssp. n. from the type locality, J holotype CUMZ 1577, and K paratype CUMZ 1548.

Figure 6. Radular morphology of Pollicaria spp. A Pollicaria myersii from Pahom, Vang Vieng, Laos (CUMZ 1572) B Pollicaria mouhoti mouhoti from Tam Wungdang, Phitsanulok (CUMZ 1533) C Pollicaria mouhoti monochroma ssp. n. from the type locality (paratype CUMZ 1548) D Pollicaria elephas from Gunung Kenting, Ipoh, Perak, Malaysia (CUMZ 1536) E Pollicaria rochebruni from Phuong Nga National Park, Vietnam (CUMZ 1568) F Pollicaria crossei from Cuc Phuong National Park, Ninh Binh Province, Vietnam (CUMZ 1588). Numbers indicated order of lateral and marginal teeth. Central tooth indicated by ' C '.