Microcaecilia

Microcaecilia is a genus of amphibians in the family Caeciliidae. These are limbless, serpentine amphibians, commonly known as caecilians, that are native to South America. The genus was first described in 1968 by Edward H. Taylor. The name Microcaecilia comes from the Greek words "mikros" meaning small and "kailia" meaning belly, referring to their slender bodies.

Species within the Microcaecilia genus are generally small, often measuring less than 15 centimeters in length. They possess smooth, segmented skin, typically dark in color, though some species may exhibit lighter coloration. Like other caecilians, they have reduced eyes, often covered by skin, and rely heavily on their sense of smell and touch to navigate their environment. Their diet primarily consists of small invertebrates such as earthworms and insect larvae, which they locate in the soil.

Microcaecilia species are fossorial, meaning they live underground, inhabiting moist soil, leaf litter, and decaying wood in tropical and subtropical forests. They are rarely seen on the surface, and much of their biology and behavior remains poorly understood due to their secretive nature. Reproduction in this genus is believed to involve internal fertilization, and offspring development can be direct, with young hatching as miniature adults, or larval, involving an aquatic larval stage. The exact reproductive strategies vary among the different species. Currently, several species are recognized within the Microcaecilia genus.