Mitra incompta (Lightfoot, 1786)
Length: 74.3mm, Width: 20.3mm, Height: 17.3mm. scuba, ~70 ft, under rubble. Orote Cliffs, Guam. Collected by Bob Abela on 30 January 05.
Distribution: Indo-Pacific
Habitat: Typically along outer reefs, under rubble and sand, at 50 ft or more.
Availability: Not too uncommon.
Size: Guam specimens typically are no larger than 85mm, though they get considerably larger (up to around 110mm).
References:
Abbott, R. Tucker & S. Peter Dance. Compendium of Seashells. p. 197.
Cernohorsky, Walter O. 1991. The Mitridae of the World, Part 1. The Subfamily Mitrinae. Indo-Pacific Mollusca, 3(17):322-323. pl. 253, fig H; pl 273; pl. 274, figs1-3.
---- 1972. Marine Shells of the Pacific, Vol II. p 171. pl. 51, fig. 1.
Kay, E. Alison. 1979. Hawaiian Marine Shells. p. 293. fig 102 F.
Pechar, Prior & Parkinson. Mitre Shells from the Pacific and Indian Oceans. pl. 2, fig. 9 & 13.
Robin, Alain, & Jean-Claude Martin. Mitridae Costellariidae. p. 12. pl M-4.
Springsteen, F.J. & F.M. Leobrera. Shells of the Philippines. p 194. pl. 53, fig. 6.
Salisbury, Richard & Wesley Thorsson. Chapter 2, Nebularia, of Living Mitridae. Part 4. Internet Hawaiian Shell News August 2001, Feature 1, p. 15-18. pl. 116 A-C; pl. 117 A-F.
Wilson, Gillet. Australian Marine Shells, Part 2. p. 146. pl. 31, fig 25.