Pacific Strombus Latissimus Conch Shell, or Frog Conch and Eastern Pacific Giant Conch Shells for Sale Wholesale or buy individual ones in sizes from 6 to 8 inches in length.  These shells were imported from Mexico and India.  Titanostrombus galeatus, or strombus galeatus, commonly known as the Eastern Pacific giant conch,  is a species of large sea snail in the family Strombidae, the true conchs and their allies.  It is an eastern Pacific species that can be found from the Gulf of California to Peru.  These shells were used as wind instruments by the ChavAn, an ancient civilization from the northern Andean highlands of Peru.  Strombus latissimus (currently accepted as Latissistrombus latissimus or Sinustrombus latissimus) is a large species of marine gastropod mollusk belonging to the true conch family, Strombidae. Common Names: Widest Pacific conch, wide-mouthed conch, or heavy frog conch.