Busycotypus maximum tudiculum

Scientific Classification


Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Neogastropoda
Family: Busyconidae
Genus: Busycotypus
Species: Busycotypus maximum tudiculum (Dall, 1890)

Information

Remarks

Synonymy: Fulgur maximum var. tudiculatum (Dall, 1890): p. 115.

Type Specimen: USNM 112016 (Holotype). “Alum Bluff, Chattahoochee River, Florida” (Merrill, 1905, p. 276).

Original Description: From Dall, 1890 (p. 115):“Miocene of Florida, in the upper bed at Alum Bluff; of Duplin Co., North Carolina; also at Wilmington, N. C.; Pliocene of South Carolina? at Darlington, where the exact horizon is doubtful and may be Miocene; Pliocene of the Caloosahatchie beds on the Caloosahatchie River, S. W. Florida, Willcox, Heilprin and Dall.

This is an interesting and variable form which may be divided into three varieties, after premising that, as is the case throughout the genus, the females have a wide patulous canal, while the canal in male specimens is much narrower and more cylindrical.

Var. tudiculatum Dall. Spire very low, base constricted, last whorl greatly inflated; shoulder rounded, without keel or tubercles in the adult, excavated somewhat in front of the suture, which is bordered by a tuberculate or wavy elevated band formed by the thickened margin of the whorl being laid over the tuberculated shoulder of the young shell; canal slender, rather long, the pillar with a rather thick callus, but not grooved. Lon. (about) 60; lat. 35 mm. (Upper bed at Alum Bluff.)

Online Resources

Mollusca Base Record 1673281, as Busycon maximum tudiculum.

References

Dall, W. D. 1890. Contributions to the Tertiary Fauna of Florida, with especial reference to the Miocene Silex-Beds of Tampa and the Pliocene beds of the Caloosahatchie River. Part I. Pulmonate, opisthobranchiate and orthodont gastropods. Transactions of the Wagner Free Institute of Science of Philadelphia, 3(1): 1-200, pls. 1-12. BHL