31. Teleosts are economically important in different ways.32. Deep sea benthopelagic teleosts all have swimbladders. 33. It belongs to the subfamily Osteoglossinae, or arowanas, a primitive group of teleosts . 34. The brains of sharks only consume a third as much ATP as those of teleosts . 35. Piscine ( bony fish ) Type I IFN has been cloned in several teleost species. 36. Homologs of interferon-gamma are found in birds, frogs, and teleost fish. 37. As in many other teleosts , the autopterotic and dermopterotic bones are not fused together. 38. Freshwater teleost fishes also require dietary vitamin C in their diet or they will get scurvy. 39. Teleosts possess highly developed sensory organs.40. The fish is obligately ureotelic ( urea excreting ), unlike most teleosts which produce ammonia.