Calamiconus is a subgenus of sea snails, marine gastropod mollusks in the genus Conus, family Conidae, the cone snails and their allies. In the new classification of the family Conidae by Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015), Calamiconus has become a subgenus of Conus: Conus (Lividiconus) (Tucker & Tenorio, 2009) represented as Conus Thiele, 1929 Distinguishing characteristics The Tucker & Tenorio 2009 taxonomy distinguishes Calamiconus from Conus in the following ways: Genus Conus sensu stricto Linnaeus, 1758 Shell characters (living and fossil species) The basic shell shape is conical to elongated conical, has a deep anal notch on the shoulder, a smooth periostracum and a small operculum. The shoulder of the shell is usually nodulose and the protoconch is usually multispiral. Markings often include the presence of tents except for black or white color variants, with the absence of spiral lines of minute tents and textile bars. Radular tooth (not known for fossil species) The radula has an elongated anterior section with serrations and a large exposed terminating cusp, a non-obvious waist, blade is either small or absent and has a short barb, and lacks a basal spur. Geographical distribution These species are found in the Indo-Pacific region. Feeding habits These species eat other gastropods including cones. Subgenus Calamiconus Tucker & Tenorio, 2009 Shell characters (living and fossil species) The protoconch is multispiral, the shell is conical, the whorl tops have cords, and the shell has a moderate to deep anal notch. The periostracum is smooth, and the operculum is small. Radular tooth (not known for fossil species) The anterior section of the radula is much longer than posterior section, and the waist is indistinct. A basal spur is present, the barb and blade are short. Serrations are completely absent. Geographical distribution These species are found throughout the Indo-Pacific region. Feeding habits These species are vermivorous (meaning that they prey on marine worms). Calamiconus lischkeanus (Weinkauff, 1875) has been found feeding on polychaetes, Amphinomidae, and Terebellidae. Species list This list of species is based on the information in the World Register of Marine Species (WoRMS) list. Species within the genus Calamiconus include: Calamiconus escondidai (Poppe & Tagaro, 2005): synonym of Conus escondidai Poppe & Tagaro, 2005 Calamiconus eximius (Reeve, 1849): synonym of Conus eximius Reeve, 1849 Calamiconus garywilsoni (Lorenz & Morrison, 2004): synonym of Conus garywilsoni Lorenz & Morrison, 2004 Calamiconus jeffreyi Petuch &