Testate amoebae (Protozoa: Rhizopoda) of Deepor Beel (a Ramsar site), Assam, northeastern India Author Sharma, B. K. Author Sharma, Sumita text Journal of Threatened Taxa 2011 2011-07-26 3 7 1947 1950 http://threatenedtaxa.org/index.php/JoTT/article/view/1210 journal article 10.11609/JoTT.o2664.1947-50 0974-7907 5032152 4. Centropyxis aculeata (Ehrenberg, 1830) Characters: Test brownish, cap-shaped; encrusted with quartz crystals and sometimes with admixture of diatoms and sand particles. Fundus obtusely rounded and usually with 4-6 divergent spines at the border, arranged in a single and somewhat regular row. Distribution: India - Assam , Arunachal Pradesh , Meghalaya , Mizoram , Manipur , Nagaland , West Bengal , Andhra Pradesh and Himachal Pradesh .