original description
Dall, W. H. (1908). Reports on the dredging operations off the west coast of Central America to the Galapagos, to the west coast of Mexico, and in the Gulf of California, in charge of Alexander Agassiz, carried on by the U.S. Fish Commission steamer "Albatross," during 1891, Lieut.-Commander Z.L. Tanner, U.S.N., commanding. XXXVII. Reports on the scientific results of the expedition to the eastern tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish Commission steamer "Albatross", from October, 1904 to March, 1905, Lieut.-Commander L.M. Garrett, U.S.N., commanding. XIV. The Mollusca and Brachiopoda. <em>Bulletin of the Museum of Comparative Zoology.</em> 43(6): 205-487, pls 1-22., available online at http://biodiversitylibrary.org/page/28878051
page(s): 301-302, pl. 12 fig. 6 [details]
From editor or global species database
Spelling Dall (1908) use the spelling "fragilissimus" on p. 215 and in the plate caption, and "fragillissimus" on p. 301. Apparently no first reviser's choice for spelling has been published, so "fragilissimus" has been used here as the normal spelling in Latin. [details]
From editor or global species database