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 (2025-03-16 17:36:46, last updated 2025-03-18 16:18:37)
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.

References

Sinev, A. Y. & Korovchinsky, N. M. (2013) Cladocera (Crustacea: Branchiopoda) of Cat Tien National Park, South Vietnam. Journal of Limnology, 70 (S 2), 125-141. https://doi.org/10.4081/jlimnol.2013.s2.e8

Sinev, A. Y. & Semenyuk I. I. (2023) South-East Asian populations of Karualona cf. karua (King. 1853) (Crustacea: Cladocera: Chydoridae) belong to a separate species. Zootaxa, 5325 (2), 223-238. https://doi.org/10.11646/zootaxa.5325.2.4

Figures

FIGURE 2. Streblocerus spinulatus Smirnov, 1992 from Chini Lake, Pahang, Malaysia, parthenogenetic female. A, lateral view. B, dorsal view. C, ventral view. D, head in ventral view. E, antennule. F, postabdomen.

FIGURE 4. Bosmina (Sinobosmina) fatalis Burckhardt, 1924 from Putrajaya Wetland, Putrajaya, Malaysia, parthenogenetic female. A, lateral view. B, bases of antennule in frontal view, frontal head pore indicated by arrow. Bosmina (Liederobosmina) meridionalis Sars, 1904 from Bukit Merah reservoir, Perak, Malaysia, C, lateral view. D–E, head in lateral view, lateral head pores indicated by arrows. F, bases of antennule in frontal view, frontal head pore indicated by arrow.

FIGURE 5. Acroperus africanus Neretina & Kotov, 2015 from Chini Lake, Pahang, Malaysia.A–D, parthenogenetic female.A, lateral view. B, posteroventral angle of valves. C, postabdomen. D, antenna. E–J, adult male. E, lateral view. F, postabdomen. G, antenna. H, antennule. I, ODL, copulatory hook and IDL of thoracic limb I. J, frontal side and endite 3 of thoracic limb I.

FIGURE 6. Anthalona spinifera Tiang-nga, Sinev & Sanoamuang, 2016, from Chini Lake, Pahang, Malaysia, parthenogenetic female. A, lateral view. B, posteroventral angle of valves. C, labrum. D, postabdomen. E, IDL and ODL of thoracic limb I. Anthalona vandammei Sinev, Tiang-nga, & Sanoamuang, 2023, from Bera Lake, Pahang, Malaysia, parthenogenetic female. F, lateral view (eyes not shown). G, ventral margin of valves. H, head pores. I, labrum. J, postabdomen.

FIGURE 7. Coronatella (Coronatella) acuticostata (Sars, 1903) from roadside pond, Pahang, Malaysia. A. juvenile female of instar II. B, adult parthenogenetic female, lateral view. C, ventral margin of valves. D, postero-ventral angle of valves. E, head shield. F, head pores. G–I, labrum. J–K, postabdomen. L, postabdominal claw. M, antennule. N, antenna.

FIGURE 8. Coronatella (Coronatella) acuticostata (Sars, 1903) from roadside pond, Pahang, Malaysia, parthenogenetic female. A–C, lateral view, D–E, dorsal view. F, ventral view. G, postero-ventral portion of valves. H–I, postro-ventral angle of valves.

FIGURE 10. Coronatella (Coronatella) acuticostata (Sars, 1903) from a roadside pond, Pahang, Malaysia, thoracic limbs of parthenogenetic female. A, limb I. B–C, IDL and ODL of limb I. D–E, inner and outer parts of limb II. F, exopodite of limb III. G, exopodite of limb IV. H, limb V (inner setae not shown). Karualona serrulata Van Damme, Maiphae & Sa-adrit, 2013 from from a lake at Paya Indah Wetland, Selangor, parthenogenetic female. I, lateral view. J, posteroventral angle of valves, K, labrum. L, postabdomen.

FIGURE 11. Chydorus obscurirostris tasekberae Frey, 1987 from Chini Lake, Pahang, Malaysia. A juvenile female. B–J, adult parthenogenetic female. B, lateral view. C, lateral outline. D, posterior setae of the valve from inner side, setulae are shown on four setae only. E, rostrum. F, labrum. G, postabdomen. H, antennule. I, antenna. J, distal segments of antenna exopodite from inner side.