No visible legs, probably attempts fast movement akin to the Sidewinder of Africa. Puckered mouth = hidden fang-type weaponry, possible glue lasso of Velvet Worm I mentioned earlier today. Pointy tapered tail = potential stinger, a possibility due to upheld tail end signifying some significance. Potential for flesh corrosive saliva as digestion aid/self defense. Possible venom of some kind in the stinger, if has such. Lines around 'neck' section of worm possibly lack significance, but also may signify pores of some kind. May leak self-defense fluids/poisons of one kind or another in manner like that of American toads (examples of such beings include cane toads and their infamous hallucinogenic properties).
Best plan of attack, if we attack, is to burrow underneath and attack a middle section of the critter as it attempts to feed on one of the other portions of meat. Deal serious damage quickly, then drag into burrow midsection first so it is unable to retaliate without dealing more damage to self.