''Annandaliella'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

tarantulas Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although ...

that was first described by A. S. Hirst in 1909. it contains three species endemic to

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

: '' A. ernakulamensis'', '' A. pectinifera'', and '' A. travancorica''. They are selenogyrid tarantulas, meaning they have a stridulating organ on the inner side of the

chelicerae The chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as " jaws", chelicerae may be shaped as either articulated fangs, or similarl ...

Diagnosis

They can be distinguished from other genera by the row of spines found in the inner side of the celicerae found in males, used for

stridulation Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mech ...

. Their feet of leg 1 is slender, and the division of their tarsal scopula is practically obsolete in males.

References

Theraphosidae genera Spiders of the Indian subcontinent Theraphosidae {{Theraphosidae-stub

Diagnosis

See also

References