Baits range from scad to dogtooth tuna and narrowbarred mackerel of and more. Calcite often forms the dogtooth spar crystals found in vugs and caves. Hydrolycus armatus is a species of dogtooth characin found in freshwater of tropical South America. Like other dogtooth characins, it has very long pointed canine teeth. The biara ("Rhaphiodon vulpinus") is a South American piscivorous fish in the dogtooth characin family. It is also known as the dogtooth snapper, pargue, or snuggletooth snapper. The genus includes the largest dogtooth characins, reaching up to in length. Those cavities not filled in were coated in dogtooth spar. Dogtooth tuna are now a highly coveted prize by many European and Asian sports anglers. A dogtooth is a small, sharp zig-zag break in the leading edge of a wing. "Dogtooth" is also a woven fabric pattern which resembles a canine tooth. The dogtooth tuna can reach a length of in males. Dogtooth mountains, such as Mount Louis, exhibit sharp, jagged slopes. The wings also received the distinctive "dogtooth" for improved control at high angles of attack. Dogtooth or dog tooth is a relatively long, pointed tooth.