English: Illustration of Crassispira premorra in Dall 1889. Note Dall captioned it ''Drillia premorra".
Date
Source
Dall, W. H. (1889). "Reports on the results of dredgings, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877–78) and in the Caribbean Sea (1879–80), by the U. S. Coast Survey steamer “Blake,” Lieut.-Commander C. D. Sigsbee, U.S.N., and Commander J. R. Bartlett, U.S.N., commanding. XXIX.—Report on the Mollusca. Part II.—Gastropoda and Scaphopoda.". Bulletin of the Museum of Comparative Zoölogy. 18: Pl. 11, Fig. 18.
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