. Bulletins of American paleontology. Text-figure 57.—Gastropods with minute, anitidiim. H. Caecum cornucopiae (normal adult 3279. E. F. G. Caeci MoLLUSK Shells in Florida Bay: Shaw References.—Warmke and Abbott, 1961, p. 67, textfig. 15a; Moiris, 1975, p. 139, pi. 41, fig. 7; Abbott,1974, p. 91, fig. 866; Rehder, 1981, p. 420, fig. 104;Emerson and Jacobson, p. 70. pi. 20, fig. 4. Caecum nitidiimText-figure 57E-G AMOCO Taxon #.—2080 Diagnosis.—Smooth caecids with an inflated arcu-ate ventral profile (Text-fig. 57E) and. in many speci-mens, with a complementary hump on the dorsal side(Text-fig.
. Bulletins of American paleontology. Text-figure 57.—Gastropods with minute, anitidiim. H. Caecum cornucopiae (normal adult 3279. E. F. G. Caeci MoLLUSK Shells in Florida Bay: Shaw References.—Warmke and Abbott, 1961, p. 67, textfig. 15a; Moiris, 1975, p. 139, pi. 41, fig. 7; Abbott,1974, p. 91, fig. 866; Rehder, 1981, p. 420, fig. 104;Emerson and Jacobson, p. 70. pi. 20, fig. 4. Caecum nitidiimText-figure 57E-G AMOCO Taxon #.—2080 Diagnosis.—Smooth caecids with an inflated arcu-ate ventral profile (Text-fig. 57E) and. in many speci-mens, with a complementary hump on the dorsal side(Text-fig. 57F). Remarks.—The caecid shell consists of three seg-ments, the earliest two of which drop off as the animalgrows. In a small minority of specimens the second(middle) section does not break free; this usually pre-vents the adult segment from reaching maturity. Iden-tification of the separated juvenile and adolescent seg-ments with the adult shells is a difficult and painstak-ing task so the earlier segments are not illust
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