Lacerta is one of the 88 modern constellations defined by the International Astronomical Union. Its name is Latin for lizard. A small, faint constellation, it was defined in 1687 by the astronomer Johannes Hevelius. Its brightest stars form a "W" shape similar to that of Cassiopeia, and it is thus sometimes referred to as 'Little Cassiopeia'. It is located between Cygnus, Cassiopeia and Andromeda on the northern celestial sphere. The northern part lies on the Milky Way.
Lacerta oertzeni, the rock lizard, is a species of lizard in the family Lacertidae. It is found in Greece and Turkey. Its natural habitats are Mediterranean-type shrubby vegetation, rocky areas, rocky shores, pastureland, plantations, and rural gardens. It is also called Anatololacerta oertzeni.
Kronichthys lacerta is a species of armored catfish endemic to Brazil where it occurs in the Baia de Paranaguá and Ribeira de Iguape River basins. This species grows to a length of 7 centimetres (2.8 in) SL.
BL Lacerta is the name of a long-standing music group, the BL Lacerta Improvisation Ensemble. Founded in Texas in 1976, BL Lacerta has performed with musicians and composers such as John Cage (who wrote one of his last compositions for the ensemble and performed with them at the Dallas Museum of Art in 1986), Pauline Oliveros, Stuart Dempster, David Behrman, and a variety of visual artists, actors, and dancers including members of Ensemble Modern, The Erik Hawkins Dance Company, and New Bohemians, to name a few. The group has also created a long series of live scores for classic silent films. The ensemble currently resides and works with student musicians and dancers in the Meadows School of the Arts at Southern Methodist University.