Halacaridae (Acari) from Pujada Bay (the Philippines): description and biogeography of three new and two known species
Chatterjee, T.; De Troch, M. (2003). Halacaridae (Acari) from Pujada Bay (the Philippines): description and biogeography of three new and two known species. Hydrobiologia 499(1-3): 95-111. dx.doi.org/10.1023/a:1026351819968
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer
Three new and two known Halacaridae species belonging to the genus Copidognathus collected among seagrass plants in Pujada Bay (Mindanao, the Philippines) are described. Copidognathus ivanomorsellii sp.n. belongs to the `Copidognathus gibbus' group and shows the main characteristics of the group but differs from known species as the two triangular porose areolae on AD are joined together, the typical shape of the lateral line of the costae of PD, the distance between the anterior gland pore on PD and the lateral margin of PD, tarsi III and IV with 4:4 dorsal setae, ventral seta on trochanter III almost as long as ventral seta of basifemur III, anterior end of AD with rosette pores, AE and GA only laterally fused but separated in the middle portion and elongated frontal spine (projection) on AD, lateral claws with very fine pecten ventrally. A zoogeographical distribution of the `C. gibbus' group is reported. Copidognathus pujadus sp.n. belongs to the `Copidognathus bairdi' group and is loosely related to C. sideus Bartsch, 1982, C. sidellus Bartsch, 1985 and C. euryalus Bartsch, 1997b. Differences were observed and are discussed. Copidognathus philippinensis sp.n. belongs to the `Copidognathus curassaviensis' group but differs from the four known species within the group by the elevated ridge below the middle two areolae on AD area which connects the two areolae. In addition, two known species i.e. Copidognathus uniscutatus Bartsch, 1984, C. faubeli Bartsch, 1986 were collected. The Halacaridae fauna recorded so far from the Philippines is summarised and discussed.
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