Tooth Cave Spider
(Neoleptoneta myopica)
Date of Listing: Endangered, 1988
The Tooth Cave Spider is the smallest of the listed invertebrates. It is a pale cream-colored spider with relatively long legs. Although it is restricted entirely to caves, it does possess rudimentary eyes. A minute and delicate predator, the Tooth Cave Spider hangs from a small tangle or sheet web on long, thin legs.
Reason for Concern:The primary threat to the Tooth Cave Spider and other endangered cave invertebrates is the loss of habitat due to urban development. Many caves have been paved over or filled in. Other caves have been altered so that they no longer provide the stable temperatures and high humidities needed to support these animals. Contamination by pollutants is also a threat to their survival.
- Size:
- About 1.6 millimeter in length (about 1/16 inch).
- Diet:
- Tiny invertebrates.
- Habitat (where it lives):
- Cave walls and ceilings.
- Range (where found in Texas):
- Edwards Plateau, Travis County, Texas.
- Reproduction:
- Does not have distinct seasonal cycles.
- Population Numbers:
- Unknown.









