The family bithyniidae gray, 1857 (Gastropoda: Truncatelloidea) in peninsular Malaysia and Singapore

Ting Hui Ng and Siong kiat tan (2024) The family bithyniidae gray, 1857 (Gastropoda: Truncatelloidea) in peninsular Malaysia and Singapore. Tropical Natural History, 24. pp. 1-11.

Text FULL TEXT.pdf Restricted to Registered users only Download (1MB) | Request a copy

Abstract

Freshwater snails of the family Bithyniidae on mainland Southeast Asia are important intermediate hosts of zoonotic parasites. However, bithyniids in the southern tip of the mainland, in Peninsular Malaysia and Singapore, have remained largely overlooked. We review records of the bithyniids from this target region based on literature and museum material to verify species identities, statuses and distribution. Species identification was conducted mainly using shell characters and supplemented by analyses of the COI gene. We recorded four species—Digoniostoma siamensis siamensis, Gabbia minuta, Gabbia cf. stenothyroides, Wattebledia baschi. In Malaysia, G. minuta and W. baschi are only known from their type localities. Digoniostoma siamensis siamensis occurs in Peninsular Malaysia and was introduced to Singapore in recent decades. Gabbia cf. stenothyroides has also been introduced to Singapore. Molecular analyses indicated that D. siamensis siamensis shares the same clade with mainland Southeast Asian Bithynia spp., Gabbia cf. stenothyroides is sister to a bithyniid from Sulawesi, while Bithynia and Gabbia were recovered as non-monophyletic groups. Our study clarifies the presence of two introduced bithyniids in Singapore, reveals the lack of knowledge on native (including endemic) Malaysian species, and further emphasises the need for a revision of all bithyniids.

Item Type:	Article
Keyword:	Freshwater snails, Southeast Asia, endemic species, introduced species
Subjects:	Q Science > QL Zoology > QL1-991 Zoology Q Science > QL Zoology > QL1-991 Zoology > QL360-599.82 Invertebrates
Department:	INSTITUTE > Institute for Tropical Biology and Conservation
Depositing User:	ABDULLAH BIN SABUDIN -
Date Deposited:	10 Dec 2024 15:09
Last Modified:	10 Dec 2024 15:09
URI:	https://eprints.ums.edu.my/id/eprint/42215

Actions (login required)

View Item