Doug Brennan reports the following list of 21 Stromboidea from Saipan, Mariana Islands:

• Canarium haemastoma (Sowerby, 1842)
• Canarium microurceus (Kira, 1959)
• Canarium mutabile (Swainson, 1821)
• Canarium mutabilis forma zebriolatus (Adam & Leloup, 1855)
• Canarium urceus (Linnaeus, 1758)
• Canarium wilsonorum (Abbott, 1967)
• Conomurex luhuanus (Linnaeus, 1758)
• Dolomena plicatus pulchellus (Reeve, 1851)
• Euprotomus bulla (Röding, 1798)
• Gibberulus gibbosus (Röding, 1798)
• Lambis lambis (Linnaeus, 1758)
• Lambis chiragra (Linnaeus, 1758)
• Lambis crocata crocata (Link, 1807)
• Lambis truncata (Kiener, 1843)
• Lentigo lentiginosus (Linnaeus, 1758)
• Lentigo pipus (Röding, 1798)
• Sinustrombus taurus (Reeve, 1857)
• Terebellum terebellum (Linnaeus, 1758)
• Terestrombus fragilis (Röding, 1798)
• Thersistrombus thersites (Swainson, 1823)
• Tridentarius dentatus (Linnaeus, 1758)

From Doug Brennan's collection:

Thersistrombus thersites (Swainson, 1823); Saipan Island, Marianas Archipelago, Northern Mariana Islands, Micronesia, USA; collected on sand substrate below coral ledge at 23m; 128,8 mm; Coll. Doug Brennan

Sinustrombus taurus (Reeve, 1857); Saipan Island, Marianas Archipelago, Northern Mariana Islands, Micronesia, USA; 95,2mm; collected on sandy rubble at 20m; Coll. Doug Brennan

Terebellum terebellum (Linnaeus, 1758); Saipan Island, Marianas Archipelago, Northern Mariana Islands, Micronesia, USA; l:36,5 mm, m:38,3 mm, r:37,1 mm, collected under sand at 18 to 20m; Coll. Doug Brennan

Canarium urceus (Linnaeus, 1758); Tanapag Reef, Saipan Island, Marianas Archipelago, Northern Mariana Islands, Micronesia, USA; dead in rubble under loose coral, about 1 meter of water just inside the reef flat (intertidally); 47,5 mm; 2001-2002; Collected by Doug Brennan; Dexter, Daryl & Donovan's Shell Collection.

• Comment Doug Brennan: is the only one we logged into the collection. We do not normally collect them. Most of the ones we see have been washed up on the beach and are very worn.

Reports

• Doug Brennan on Sinustrombus taurus: "Just prior to the Typhoon Choi-wan, a friend of mine let me know he ran into a "herd" of S. taurus. There were about three dozen of them hopping around on course, algae covered rubble in about 15 meters of water. I have heard that S. taurus travel in large groups but have never seen more than two or three at one time. I have also heard about large groups of them from friends on Guam, too. I wonder if they move into shallow water to feed prior to a storm."
• Doug Brennan from Mariana Islands: "We have found live Cancellariidae Scalptia contabulata in the apertures of live Lambis chiragra and Lambis truncata. I have personally found up to three live C. contabulata in the aperture of a single Lambis chiragra. This occurs mostly in January and February when the water is slightly cooler than the rest of the year."
• Doug Brennan: "I have seen large groups of S. luhuanus here (Mariana Islands, Saipan), on Guam and in Okinawa."