The noun A. TESTUDINEUS has 1 sense: 1. a small perch of India whose gills are modified to allow it to breathe air; has spiny pectoral fins that enable it to travel on land. Familiarity information: A. TESTUDINEUS used as a noun is very rare. Dictionary entry details.
If the urine appears thick or has granules in it I'd suspect bladder stones/crystals or infection. The bright yellow color can sometimes indicate a liver or gallbladder problem.
Foamy urine refers to a thick head of tiny air bubbles on the surface of urine. It is also referred to as frothy urine. While a slight foam can occur every now and then, persistently foamy urine especially where there is a thick layer of surface foam needs to be investigated for possible medical causes to this excessive bubbling.