taxonID	type	description	language	source
038E87DD8A50FFF56EFCFA079D60AEAD.taxon	description	1834. Bulilnus gracile Hutton, J. Asiat. Soc. Beng., 3: 84: No. 5 Bulinus (mithi) gracilis: 93. 2010. Allopeas gracile: Rowson, Warren, Ngereza, ZooKeys, 70: 1 - 39. Material examined: ZSI / IV / APRC / M- 266 (17 exs). 16. xii. 2019; ZSI / IV / APRC / M- 271 (15 exs), 15. vi. 2020. Distribution: Arunachal Pradesh, Common throughout. Elsewhere: A widely distributed species in the whole of Southeast Asia. Remarks: This species causes considerable damage to various vegetable plants because of its omnivorous feeding habit. The species is invasive as per Invasive Species Compendium (https: // www. cabi. org). However, the species could not be termed a significant pest except under restricted circumstances (Capinera, 2017). This species occurs very close to human habitations, on damp walls on potted plants etc.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A50FFF56D01FE559CC4AC0A.taxon	description	1909. Glessula naja Pilsbery, Man. Conch. (2) 20: 90, pl. 12, fig. 10. 2000. Glessula naja: Dey & Mitra. Rec. zool. Surv. India, 98 (2): 27. Material examined: ZSI / IV / APRC / M- 269 (4 exs), 16. xii. 2019; ZSI / IV / APRC / M- 285 (6 exs), 02. v. 2020. Distribution: India: Arunachal Pradesh, Assam, Meghalaya, and Tripura. Remarks: The species is found along with Rishetia tenuispira inside the campus, however lesser in abundance.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A50FFF56EFCFD59986CAA7F.taxon	description	1822. Achatina fulica Bowdich, Elements of Conchology, Univalves. 79 pp., 19 pl. Paris. 2006. Lissachatina fulica: Gerlach, Justin. Mollusca of the Seychelles islands. Backhuys BV, Leiden, 1 - 141: 36. Material examined: ZSI / IV / APRC / M- 265 (3 exs), 16. xii. 2019; ZSI / IV / APRC / M- 270 (1 ex), 20. vi. 2020. Distribution: Throughout the country. Elsewhere: A widely distributed species. Remarks: The species is native to the east coast of Africa (Rowson et al., 2010) but widely introduced in many parts of the world. The snail is the most frequently occurring invasive snail, commonly known as Giant African land snail. It is a highly invasive species listed in the 100 most invasive species of the world by the Global Invasive species database of IUCN because of its fast-growing voracious polyphagous feeding habit. The species is reported for the first from the state.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A50FFF66D01FA2298E2AC39.taxon	description	1876. Opeas nevilli Godwin-Austen, Journal of the Asiatic Society of Bengal. 45 (2): 311 - 318, plate VIII. 2000. Lamellaxis nevilli: Dey and Mitra, Rec. zool. Surv. India, 98 (2): 28. 2021. Rishetia nevilli: Mollusca Base. https: // molluscabase. org / aphia. php? p = taxdetails & id = 1398689. Material examined: ZSI / IV / APRC / M- 267 (4 exs), 16. vii. 2019; ZSI / IV / APRC / M- 272 (2 exs), 06. vii. 2029; ZSI / IV / APRC / M- 287 (2 exs), 02. v. 2020. Distribution: India: Arunachal Pradesh. Remarks: Closely similar with Allopeas gracile, however, differentiated by the more elongate body. For the first time, the species was described from Dafla hills, Arunachal Pradesh and endemic to the state.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A50FFF56D01FCF29AC8AA89.taxon	description	1836. Achalina tenuispira Benson, J. Asial. Soc. Beng., 5: 353. 1909. Glessula tenuispira: Pilsbry, Mall. Conch., (2) 20: 88, pI. 9, figs. 1, 4. 2014. Rishetia tenuispira: Raheem, Taylor, Ablett, Preece, Aravind, Naggs. Tropical Natural History. Supplement 4: I-XIV, 1 - 244. Material examined: ZSI / IV / APRC / M- 268 (5 exs), 16. xii. 2019; ZSI / IV / APRC / M- 275 (2 exs), 05. vii. 2029; ZSI / IV / APRC / M- 286 (2 exs), 02. v. 2020. Distribution: Arunachal Pradesh, Maharashtra, Meghalaya, Mizoram, Sikkim, West Bengal. Elsewhere: Bangladesh, Myanmar. Remarks: The species is found abundantly inside the campus; though there is no report of its invasive nature, these species were observed under the stone and decaying vegetation.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A53FFF66ED9FC1D98FEAA07.taxon	description	1872. Helicarion (Hoplites) crocea Godwin-Austen, Proc. zool. Soc. Lond., 517, pI. 30, figs. 9,9 a. 2000. Girasia crocea: Dey & Mitra, Rec. zool. Surv. India, 98 (2): 32. Material examined: ZSI / IV / APRC / M- 283 (2 exs), 02. v. 2020; ZSI / IV / APRC / M- 288 (2 exs), 22. vi. 2020; ZSI / IV / APRC / M- 278 (3 exs), 06. vi. 2019. Distribution: India: Arunachal Pradesh, Assam, and Meghalaya. Remarks: The animal is bright saffron-yellow and reported for the first time from the state.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A53FFF66ED9FAA09B89A9AC.taxon	description	1855. Girasia hookeri Gray Cal. Pulm, Brit. Molls. p. 61. 2000. Girasia hookeri: Dey & Mitra, Rec. zool. Surv. India, 98 (2): 32. Material examined: ZSI / IV / APRC / M- 281 (4 exs), 08. viii. 2019; ZSI / IV / APRC / M- 283 (3 exs), 21, vi. 2020. Distribution: Arunachal Pradesh, Manipur, and Nagaland. Remarks: Commonly spotted during rainy season. The species is reported for the first time in the state.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A53FFF66ED9F9629DC2AC90.taxon	description	1875. Helix (Nanina) atricolor Godwin-Austen, J. Asiat. Soc. Beng., 44 (2): 2, pI. 1, fig. 2. 2010. Macrochlamys atricolor: Ramakrishna, Mitra & Dey, Rec. zool. Surv. India, Occ. Paper No., 306: 262. Material examined: ZSI / IV / APRC / M- 276 (5 ex), 8. x. 2019; ZSI / IV / APRC / M- 289 (6 exs), 03. iv. 2020. Distribution: Arunachal Pradesh, Assam, Manipur, Meghalaya, and Nagaland. Elsewhere: Myanmar. Remarks: Shell is smooth and polished and is abundantly occurring species inside the campus.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A53FFF66D1FFC4A9AF7A92E.taxon	description	1883. Macrochlamys indica Godwin-Austen, Land and Freshwater Moll. India, 1: 76, 97, pl. 18, figs. 1 · 8; pI. 21, fig. 7; pI. 25, figs. Y, 16. 2010. Macrochlamys indica: Ramakrishna, Mitraand Dey, Rec. zool. Surv. India, Occ. Paper No., 306: 271. Material examined: ZSI / IV / APRC / M- 263 (15 exs), 16. xii. 2019; ZSI / IV / APRC / M- 290 (12 exs), 26. vi. 2020. Distribution: Arunachal Pradesh, Assam, Mizoram, Sikkim, and West Bengal. Elsewhere: Bangladesh and Sri Lanka. Remarks: The most common species of the genus, widely and abundantly occurring throughout the country, including the Andaman Islands, except the dry northwestern parts of India. It is commonly known as garden snails of India.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A53FFF76D1FF9F298DAAEA0.taxon	description	1836. Helix cestus Benson, J. Asiat. Soc. Beng., 5: 353. 2010. Bradybaena cestus: Ramakrishna, Mitra & Dey. Rec. zool. Surv. India, Occ. Paper No., 306: 336. Material examined: ZSI / IV / APRC / M- 264 (5 exs), 16. xii. 2019; ZSI / IV / APRC / M- 274 (43 exs), 20. iv. 2019; ZSI / IV / APRC / M- 291 (11 exs), o 6.06.2020. Distribution: Arunachal Pradesh, Assam. Elsewhere: Bangladesh and Cambodia. Remarks: It may be called the garden shell of the North Eastern Himalayas. There is a huge population of this species inside the campus.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A52FFF76EFCFE6498C2ABA8.taxon	description	1821. Vaginulus alte Ferussac, Tubl. Syst. Fam. Limaeea, p. 14. 1979. Laevicaulis alte: Subba Rao and Mitra. Rec. zool. Surv. India, 75: 10. 2020. Eleutherocaulis alte: Mollusca Base, World Register of Marine Species. Material examined: ZSI / IV / APRC / M- 276 (1 ex), 08. x. 2019; ZSI / IV / APRC / M- 281 (1 ex), 06. vi. 2019; ZSI / IV / APRC / M- 292 (1 ex), 23. v. 2020. Distribution: India: Arunachal Pradesh, Andhra, Andhra Pradesh, Bihar, Delhi, Gujarat, Maharashtra, Meghalaya, Punjab, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, and West Bengal. Elsewhere: Throughout the tropical parts of the world. Remarks: It is a shell-less terrestrial slug commonly known as leatherleaf. It is the most common slug on Indian plains. The animal voraciously feeds on live and decomposing vegetations. The species is being reported for the first time in the state.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A52FFF76D01FE719C86AC4A.taxon	description	1822. Lymnaea luteola Lamarck, Histoire naturelle des animaux sans vertèbres. Tome sixième, 2 me partie. Paris, 232 pp. 2018. Racesina luteola: Vinarski and Bolotov, Zoosystematica Rossica. 27 (2): 328 – 333. Material examined: ZSI / IV / APRC / M- 280 (12 exs), 06. vi. 2019; ZSI / IV / APRC / M- 294 (11 exs), 05. v. 2020. Distribution: Common throughout India. Remarks: This species usually occurs mainly in permanent stagnant water bodies within abundant vegetations.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
038E87DD8A52FFF76EFCFABB9B71A903.taxon	description	1822. Lymnaea acuminata form typical Lamarck, Hist. nat. Anim. Sans. Vert., 6 (2): 160. 2018. Radix rufescens: Mollusca Base, World Register of Marine Species. Material examined: ZSI / IV / APRC / M- 279 (12 exs), 06. vi. 2019; ZSI / IV / APRC / M- 293 (15 exs), 05. v. 2020. Distribution: Common throughout India.	en	Gurumayum, S. D. (2021): Mollusca fauna of the campus of Arunachal Pradesh Regional Centre, Zoological Survey of India, Itanagar Wildlife Sanctuary, Arunachal Pradesh, along with two new records. Records of the Zoological Survey of India 121 (2): 225-229, DOI: 10.26515/rzsi/v121/i2/2021/155763
