Assiminea compacta

Assiminea compacta
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Assimineidae
Genus:	Assiminea
Species:	A. compacta
Binomial name
Assiminea compacta (P. P. Carpenter, 1864)
Synonyms [1]
Hydrobia compactaP. P. Carpenter, 1864 ·

Assiminea compacta is a species of small operculate snail, a marine gastropod mollusc or micromollusc in the family Assimineidae. ^[1]

Description

(Original description in Latin) The shell is smooth, short, compact, and rather broad. The margins of the spire are scarcely curved outwards. The four whorls are normal, with an apex that is mamillate (nipple-shaped). The whorls are tumid (swollen) with distinct sutures. The spire is shorter, and the base is rounded. The aperture is somewhat oval. The peritreme (the continuous margin of the aperture) is continuous, and the outer lip is well-defined. ^[2]

Distribution

This species occurs in the Rio Grande region.

References

1. Assiminea compacta (P. P. Carpenter, 1864) . 26 November 2025. Retrieved through: World Register of Marine Species .
2. Carpenter, P.P. (1864). "Diagnoses of new forms of Mollusca collected at Cape St. Lucas, Lower California, by Mr. Xantus". Annals and Magazine of Natural History. 3 (13): 478. Retrieved 26 November 2025. This article incorporates text from this source, which is in the public domain .

• Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls.