Lifou, Loyalty Ids, November 2000. Shell 10 mm long. Note brown median band on head. PHOTO: Bill Rudman.
This is one of the most common of the tropical members of the genus. It is white with black spots as in P. solidula, but the shell is more slender and the black spots are usually separated into three wide bands on the body whorl by three white spiral lines. Widespread throughout the Indo-West Pacific. Solidula affinis A. Adams, 1855 is probably an earlier name for this species but the name Pupa affinis had already been used for landsnails [Rossmaessler, 1839; Aradas & Maggiore, 1843] so is unavailable.
Note added May 2009: In southeastern Australia this species has commonly been identified as Pupa fumata (Reeve, 1865), but the shell colouration falls within the variation found elsewhere in P. strigosa, so I consider it to be another synonym.
Gould, A.A., (1859). Descriptions of new species of shells brought home by the North Pacific Exploring Expedition. Proceedings of the Boston Society of Natural History, 7: 138-142.
Rudman, W.B., 2001 (February 4) Pupa strigosa (Gould, 1859) . [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/pupastri
Colour variation in the shell of Pupa strigosa
From: Bill Rudman, June 3, 2009
Pupa kirki or Acteon sp. found sthn Queensland
From: Gary Cobb, June 3, 2009
Pupa strigosa ? from Noumea
From: Claude Berthault, June 11, 2001
From: Cynthia Trowbridge, February 6, 2001