Karualona serrulata Van Damme, Maiphae & Sa-adrit, 2013

Sinev, Artem Y., Dadykin, Ivan A., Umi, Wahidah A. D. & Yusoff, Fatimah M., 2025, New data on Cladocera (Crustacea: Branchiopoda) of Peninsular Malaysia, Zootaxa 5604 (3), pp. 255-284 : 270

publication ID	https://doi.org/10.11646/zootaxa.5604.3.3
publication LSID	lsid:zoobank.org:pub:C8E5E697-223C-45A0-A104-134328213586
DOI	https://doi.org/10.5281/zenodo.15046329
persistent identifier	https://treatment.plazi.org/id/03F2AF08-FFB8-FFCF-C7D2-265DFE53F800
treatment provided by	Plazi
scientific name	Karualona serrulata Van Damme, Maiphae & Sa-adrit, 2013
status

Treatment

Fig. 10I–L View FIGURE 10

Sinev & Korovchinsky 2013: Fig. 2 H–K View FIGURE 2 ( Karualona sp. ); Van Damme et al. 2013: 182–186, Fig 4–8 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 ; Sinev 2016: 473, Fig. 11I–K View FIGURE 11 .

Material examined: A single parthenogenetic female from a lake full of lotus, Paya Indah Wetland , Selangor (2.85820° N, 101.63171° E), 03.09.2022 GoogleMaps .

This is the first record for Malaysia. Karualona serrulata is habitually similar to other East Asian species of the genus ( Fig. 10I View FIGURE 10 ), but it can be easily distinguished from them by a peculiar morphology of the posteroventral angle of valves ( Fig. 10J View FIGURE 10 ). It also differs from most common species of the region, K. fatimae Sinev & Semenyuk, 2023 (earlier recorded as K. karua King, 1853 ) in the absence of a spinule on anterior margin of labrum ( Fig 10K View FIGURE 10 ) and in a well-developed basal spine of the postabdominal claw ( Fig. 10L View FIGURE 10 ). For detailed description see Van Damme et al. (2013).

Karualona serrulata is a rare species, an endemic of South-East Asia, so far known from South and North-East Thailand, Vietnam and Laos (Sinev 2016). The species is found in swamps and shallow lakes, littoral species, associated with vegetation.