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.
Sometimes, very colorful urine indicates dehydration. The more concentrated urine is, the darker or richer the color of it is. If you have no other symptoms, such as pain with urination, abdominal pain, or lower back pain, your bright yellow urine probably doesn't mean anything, in terms of your overall health. If you develop any problems urinating or if the bright color persists, then by all means consult a medical professional.