Dyakiidae
Dyakiidae is a family of air-breathing land snails terrestrial pulmonate gastropod mollusks in the superfamily Trochomorphoidea.
Some of the species in this family are sinistral in their shell coiling.
Distribution
The family Dyakiidae is endemic to Sundaland in Southeast Asia.Anatomy
In this family, the number of haploid chromosomes is between 26 and 30.The family also includes the only known terrestrial gastropods to emit light.
The Digestive system characteristics are as follows. The buccal mass is small. The jaw is smooth. The stomach is very simple with weak muscles..
Genera
The family Dyakiidae includes the following genera, with a steadily increasing number of described species :- Asperitas Gray, 1857 - 14 species
- Bertia Ancey, 1887 - at least 4 species
- Dyakia Godwin-Austen, 1891 - type genus, 22 species
- Elaphroconcha Gude, 1911 - 10 species
- Everettia Godwin-Austen, 1891 - 25 species
- Kalamantania Laidlaw, 1931 - only one species: Kalamantania whiteheadi
- Phuphania Tumpeesuwan, Naggs & Panha, 2007 - 3 species including: Phuphania globosa Tumpeesuwan, Naggs & Panha, 2007
- Pseudoplecta Laidlaw, 1932 - only one species: Pseudoplecta bijuga
- Pseudoquantula Jirapatrasilp & Panha gen. nov. - only one species: Pseudoquantula lenticularis Jirapatrasilp & Panha sp. nov.
- Quantula Baker, 1941 - 7 species including: Quantula striata
- Rhinocochlis Thiele, 1931 - only one species: Rhinocochlis nasuta
- Sasakina Rensch, 1930 - 5 species