Monatractides oxystomus (K. Viets, 1935)

Pešić, Vladimir, Chatterjee, Tapas, Das, Mrinal Kumar & Bordoloi, Sabitry, 2013, A new species of water mite (Acari, Hydrachnidia) from Assam, India, found in the gut contents of the fish Botia dario (Botiidae), Zootaxa 3746 (3), pp. 454-462 : 459-460

Monatractides oxystomus (K. Viets, 1935)

Remarks. One male and one female specimens from the gut content of Botia dario agrees well with the original description of Monatractides oxystomus (K. Viets, 1935) , a species widespread in streams of SE Asia. Monatractides oza (Cook, 1967) , a species known from India (Maharashtra; Cook 1967, Pešić and Ranga Reddy 2009) differs in having slightly shorter and wider frontal platelets, but this character is known to be variable in this species (Lundblad 1969). A further difference (see Cook 1967: Fig. 244) is found in the absence of denticles at the distal margins of P-2 and P-3 (present in M. oxystomus , and in our specimens from Assam), but as stated by Pešić and Smit (2009b) the variability needs to be examined more to clarify the taxonomy. New for India.

Family Hygrobatidae

Hygrobates cf. sinensis Uchida & Imamura, 1951 ( Fig. 4A–B )

Remarks. Hygrobates dadayi Cook, 1967 ( India: Maharashtra, Tamil Nadu, Karnataka, Andhra Pradesh; Cook 1967, Pešić and Ranga Reddy 2009), similar in the relatively small acetabular plate in the female ( Fig. 4A ), was separated from H. sinensis (known from Japan and China) due to a shorter distoventral projection of P-2, and a different shape of males genital field. Only a single female was taken from the gut contents of the loach, so our record should be considered tentative until males are examined. New for India.

Figures

FIGURE 4 A – C. A – B Hygrobates cf. sinensis Uchida & Imamura, 1951, female: A = genital field; B = palp. C Torrenticola haliki Pešić & Smit, 2010, male: palp, medial view. Scale bars = 100 Μm.