Helminthoglypta diabloensis

Helminthoglypta diabloensis, or the silky shoulderband snail, is a North American species of air-breathing land snail. It is found in California, including the California Coast Ranges, Diablo Range, and other areas in Alameda, Contra Costa, Santa Clara, Yolo, Colusa and Napa Counties.^[1][2] The shell of H. diabloensis is described as having six to seven tightly coiled whorls.^[3]

Helminthoglypta diabloensis
Conservation status
Imperiled  (NatureServe)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Xanthonychidae
Subfamily:	Helminthoglyptinae
Genus:	Helminthoglypta
Species:	H. diabloensis
Binomial name
Helminthoglypta diabloensis (J. G. Cooper, 1869)
Synonyms
Helix diabloensis J. G. Cooper, 1869

This snail was previously described as Helix diabloensis.^[4]