Numaegilina

Numaegilina is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae. It was originally described as a subgenus of Chrysallida" but was raised to generic status by Schander et al. (1999).A junior synonym is Paregila Laseron, 1951.

Shell description

In the original description (Nomura, 1938) it is stated that the difference between this genus and "Egilina" and "Egila" is that the axial riblets are not fused at the upper and lower ends and that the sutures are not channeled. There are spiral threads seen in the intercostae whereas the intercosta in Egilina are smooth.

Life history

Nothing is known about the biology of the members of this genus. As is true of most members of the Pyramidellidae sensu lato, they are most likely to be ectoparasites.

Species

Species within the genus Numaegilina include:

• Numaegilina gloria (Nomura, 1938) (Type species) (as Chrysallida (Numaegilina) gloria)
• Numaegilina claudoni (Dautzenberg & Fischer, 1906)
• Numaegilina henni
• Numaegilina khmeriana Saurin, 1961
• Numaegilina obliquissima Saurin, 1959
• Numaegilina perspectiva
• Numaegilina ventricosa (Saurin, 1958)

This list is incomplete; you can help by expanding it.

References

• Ronald G. Noseworthy, Na-Rae Lim, and Kwang-Sik Choi, A Catalogue of the Mollusks of Jeju Island, South Korea; Korean Journal of Malacology, Vol. 23(1): 65-104, June 30, 2007
• Nomura, S. (1938). "The third report on Pyramidellidae based on the specimens preserved in the collection of the Saito Ho-on Kai Museum". Saito Ho-on Kai Museum Research Bulletin 16: 1–88. Pl. 1–15. 

External links

• Numaegilina gloria (Nomura, 1938) - Picture