VAN AS, J.G. & BASSON, L. (1996)
An endosymbiotic trichodinid, Trichodina rhinobatae sp n (Ciliophora: Peritrichia) found in the lesser guitarfish, Rhinobatos annulatus Smith, 1841 (Rajiformes: Rhinobatidae) from the South African coast. Acta Protozoologica, 35 (1): 61–67