Drymaeus expansus

Drymaeus expansus
	Different views of a syntype specimen of D. iodostomus, a junior synonym of D. expansus, held at the MNHN, Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Bulimulidae
Genus:	Drymaeus
Species:	D. expansus
Binomial name
	Drymaeus expansus; (L. Pfeiffer, 1848)
Synonyms
	List Bulimus expansus L. Pfeiffer, 1848 (basionym) ; Bulimus iodostomus Deville & Hupé, 1850 ; Bulinus pulchellus G. B. Sowerby I, 1838 ; Drymaeus (Drymaeus) expansus (L. Pfeiffer, 1848) ; Drymaeus (Drymaeus) expansus altorum (Weyrauch, 1958) ; Drymaeus (Drymaeus) expansus flavilabrum Weyrauch, 1967 ; Drymaeus (Drymaeus) expansus perenensis S. I. Da Costa, 1901 ; Drymaeus (Drymaeus) expansus subprotractus Pilsbry, 1901 ; Drymaeus (Drymaeus) iodostomus (Deville & Hupé, 1850) ; Drymaeus (Drymaeus) rehderi J. J. Parodiz, 1963 ; Drymaeus expansus altorum (Weyrauch, 1958) ; Drymaeus expansus balboa Pilsbry, 1926 ; Drymaeus expansus flavilabrum Weyrauch, 1967 ; Drymaeus expansus perenensis S. I. Da Costa, 1901 ; Drymaeus expansus subprotractus Pilsbry, 1901 ; Drymaeus expansus vanattai Pilsbry, 1898 ; Drymaeus iodostomus (Deville & Hupé, 1850) ; Drymaeus rehderi J. J. Parodiz, 1963 ; Drymaeus vanattai Pilsbry, 1898 ; Mesembrinus (Mormus) expansus (L. Pfeiffer, 1848) ; Mesembrinus (Mormus) expansus altorum Weyrauch, 1958 ; Mesembrinus (Mormus) expansus orcesi Weyrauch, 1958 ; Mesembrinus expansus (L. Pfeiffer, 1848) ; Mesembrinus expansus orcesi Weyrauch, 1958 ;

Drymaeus expansus is a species of tropical air-breathing land snail, a pulmonate gastropod mollusc in the family Bulimulidae that is native to parts of South America. It was described in 1848, with Huallaga, in Peru, as the type locality. The animal has a streaked shell, white to brownish in color, measuring 40 mm in length and 22 mm in width with 7 whorls. It has an open umbilicus and is densely striated longitudinally, also featuring a markedly expanded peristome in all directions.

Phylogenetic analyses based on genetic markers place Drymaeus expansus in a clade that also includes the species D. branneri and D. pamplonensis. However, given the great diversity of the genus Drymaeus and the small number of species analyzed, these data are still considered preliminary.