The Cuban night lizard (Cricosaura typica) is a night lizard

Night lizard

Night lizards are a group of very small, viviparous lizards, averaging from less than 4 cm to over 12 cm long. The family has only three genera, with approximately 23 living species...

 that lives exclusively in the west corner of the southern-most coast of Cuba

Cuba

The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

. It is the smallest of the night lizards, at less than 4 cm. It is the only member

Monotypic

In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...

 of the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Cricosaura, one of three in the night lizard family.

Like all night lizards, the Cuban night lizard is viviparous, giving live birth to its young. It differs from the other night lizards in possessing two frontonasal scales

Scale (zoology)

In most biological nomenclature, a scale is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopteran species, scales are plates on the surface of the insect wing, and provide coloration...

, one frontal scale, no parietal scale, and a fourth finger with four phalanges.