Hinemoa (gastropod)

Hinemoa is a genus of small sea snails, pyramidellid gastropod mollusks. This genus is currently placed in the subfamily Chrysallidinae, within the family Pyramidellidae.[2]

Hinemoa
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Tribe: Chrysallidini
Genus: Hinemoa
Oliver, 1915[1]
Type species
Hinemoa punicea W. R. B. Oliver, 1915
Species

See text

Shell description

The original description of the genus is short and states that the shells are ovate with a one-whorled protoconch. The aperture is ovate and the columella has a feeble plait. The sculpture consists of spiral ribs only.[1]

The original description of the type species is also rather short and states that the shell is ovate with an obtuse apex and 4½ whorls. The aperture broadly ovate and the outer lip is thin. The inner lip is raised anteriorly with a slight umbilical chink between it and the body-whorl. The columella-plait small and oblique. The protoconch of one whorl that is smooth and polished. The shell has two high rounded equidistant spiral ribs on each whorl. The distance between the ribs are equal to their with, and equal to the distance between those on each side of the suture. The suture is not distinguishable. It has 3 additional low spiral ribs on the base. The surface is otherwise rather smooth. The color of the protoconch is ruby-red and shining and the shell is light pink. Within the aperture it is whitish. The height 1.1 mm. and the diameter 0.6 mm.[1]

Life habits

Little 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 ectoparasites.

The ultrastructure of the sperm has been investigated by Healy (1988).[3]

Species

Species within the genus Hinemoa include:

Species brought into synonymy
  • Hinemoa cylindrica (de Folin, 1879):[5] synonym of Oscilla galilae Bogi, Karhan & Yokeş, 2012
  • Hinemoa rubra Laseron, 1959: synonym of Hinemoa ligata (Angas, 1877)
  • Hinemoa voorwindei Laseron, 1959: synonym of Oscilla voorwindei (Laseron, 1959)

References
  1. Oliver W. R. B. (1915). "The mollusca of the Kermadec Islands". Transactions and Proceedings of the Royal Society of New Zealand. 47 (1914): 509–568, ix–Xii. page 531. Plate 10, figure 22. HTM.
  2. Bouchet, P.; Gofas, S. (2011). Hinemoa Oliver, 1915. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=181119 on 2012-01-05
  3. Healy J. M. (1988). "The ultrastructure of spermatozoa and spermiogenesis in pyramidellid gastropods, and its systematic importance". Helgoländer Meeresuntersuchungen. 42 (2): 303–318. Bibcode:1988HM.....42..303H. doi:10.1007/bf02366047.
  4. WoRMS (2010). Hinemoa forticingulata Bozzetti, 2008. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=456967 on 2011-03-25
  5. Gofas, S. (2010). Hinemoa cylindrica (de Folin, 1879). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=181121 on 2011-03-25
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