Bosminopsis deitersi Richard, 1895

Pascual, Jhaydee Ann F., Rizo, Eric Zeus C., Han, Boping, Dumont, Henri J. & Papa, Rey Donne S., 2014, Taxonomy and distribution of four Cladoceran families (Branchiopoda: Cladocera: Moinidae, Bosminidae, Chydoridae and Sididae) in Philippine inland waters, Raffles Bulletin of Zoology 62, pp. 771-794 : 774

Bosminopsis deitersi Richard, 1895

Specimen examined. Three samples from Lake Bangalau in Cagayan and Lake Naujan, Mindoro were stored in UST- ZRC with reference numbers 0090–0092.

Description. Body length ranges in 0.1–0.4mm. Distributed through the tropics and some localities in the temperate, this species are characterised by relatively small with a supraocular depressions or slight keels ( Fig. 5A ). The antennule and the rostrum are merged ( Fig. 5B ). The distal part of the antennules are diverging which makes Bosminopsis deitersi unique from other species under Bosminidae ( Fig. 5B ). A cone-like postabdomen contains a rounded tip ( Fig. 5C ) that is mostly seen protruded outside of the carapace. A short sharp postabdominal claw is not similar to most Bosmina . It contains small teeth with small spines continuing dorsally.

Distribution. Cagayan: Lake Bangalau; Camarines Sur: Lake Bato, Lake Baao; Oriental Mindoro: Lake Naujan ( Fig. 2 )

Remarks. The species is reported in both tropics and subtropics in the world with several localities in the north temperate zone. Bosminopsis deitersi collected in the Philippines was compared with the species in Taihu Lake, China and revealed the same morphological characters in exception of the setae at the tip of the antennule which are not present in the samples coming from the Philippines ( Fernando, 2002).

Figures

Fig. 5. Bosminopsis deitersi. A, habitus; B, antennule; C, postabdominal claw showing the post-anal extension; D, antennae.

Fig.2. Distribution of family Bosminidae based on recently collected samples (2013) and stored samples in the UST ZRC.