These photos of an Asian delicacy were taken in Bangkok’s Chinatown. They are definitely a Chinese dish and I have no idea what these would be called in Thai. And just like many other Chinese specialties, they are relatively expensive. Ugly looking things, I’m not sure what kind of taste I would expect out of them. Probably just sea watery or something. You can read more about them at wikipedia.
Bangkok’s Chinatown is also filled with many other interesting foods, ranging from fish stomach, shark fin, expensive ginseng, dried scallops and abalone, and plenty of other things.