Herpetopoma gemmatum
Drawing with two views of a shell of Herpetopoma gemmatum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Superfamily: Seguenzioidea
Family: Chilodontaidae
Genus: Herpetopoma
Species:
H. gemmatum
Binomial name
Herpetopoma gemmatum
(Gould, 1845) [1]
Synonyms[2]
  • Clanculus gemmatus (Gould, 1845)
  • Euchelus fischeri (Montrouzier, 1866)
  • Euchelus gemmatus (Gould, 1845)
  • Monodonta fischeri Montrouzier, 1866
  • Trochus (Monodonta) gemmatus Gould, 1845 (original combination)

Herpetopoma gemmatum is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.[2]

Description

The size of the shell varies between 4 mm and 8 mm. The small, solid and thick shell has a globose conic shape. It is pinkish, or ashen-pink, irregularly dotted or longitudinally striped with dull red. The short spire is acutely conic. The sutures are narrowly canaliculate. The five, convex whorls are encircled by numerous closely finely granose riblets, usually 12–14 in number on the body whorl, the interstices with oblique raised striae or not visibly sculptured. The rounded body whorl is globose. The aperture is rounded. The thick outer lip is lirate inside. The short columella is, straightened, and obtusely subtuberculate in the middle, ending in a projecting tooth, between which and the basal margin there is a deep narrow notch. The umbilicus is narrow.

The ground color varies from nearly white to ashen-pink. On the darker forms the dots are obscure, and they appear unicolored, of a dingy pinkish hue. There seems to be great variation in the number and development of the spiral grained riblets. The ribs sometimes alternate in size on the median part of the last whorl.[3]

Distribution

This species occurs in the Red Sea and in the Indian Ocean off Réunion;
in the Pacific off Hawaii and Queensland, Australia.

References

  1. ↑ Gould, Proc. Bost. Soc. Nat. Hist, ii, p. 27, 1845.
  2. 1 2 MolluscaBase eds. (2020). MolluscaBase. Herpetopoma gemmatum (Gould, 1845). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=951880 on 2020-11-07
  3. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
  • Vilvens C. (2017). New species and new records of Chilodontidae (Gastropoda: Vetigastropoda: Seguenzioidea) from the Pacific Ocean. Novapex. 18 (Hors Série 11): 1-67.
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