RAJYALAKSHMI, I. and VIJAYALAKSHMI, C. 1995. PORROCAECUM DASYATUM N. SP. (NEMATODA : HETEROCHEILIDAE) FROM THE STOMACH OF RAY FISH, DASYATIS UARNAK (FORSKAL) FROM VISAKHAPATNAM. UTTAR PRADESH JOURNAL OF ZOOLOGY. 15, 1 (Jan. 1995), 23–26.