Clathrodrillia piscator

Scientific Classification


Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Neogastropoda
Family: Drillidae
Genus: Clathrodrillia
Species: Clathrodrillia piscator (Dall, 1890)

Information

Waccamaw Formation

Remarks

Synonymy: Drillia piscator (Dall, 1890): p. 34, pl. 2, fig. 10.

Other Combinations: Drillia piscator Dall, 1890 Clathrodrillia piscator (Dall, 1890)

Type Specimen: USNM 97325 (holotype), “Caloosahatchie River, near Fort Thompson, Florida” (Merrill, 1905, p. 236).

Original Description: From Dall, 1890 (p. 34):“Rare in the Caloosahatchie beds. Shell small, slender, eight-whorled; nucleus at first rather large and smooth, later spirally grooved; later whorls with (on the last whorl seven) rather distinct, flattened, primary spiral threads, three between the sutures, beside two finer ones on the fasciole and several crowded, rounded threads on the canal; a very strong, rather angular spiral runs in front of the suture, which is otherwise hardly noticeable; transverse sculpture of (on the last whorl about seventeen) faint, narrow riblets, which extend from in front of the fasciole over the periphery and fade away or become duplicated on the base ; notch shallow, rounded ; a moderate callus on the body; aperture short and narrow, with no differentiated canal. Maw. lon. of shell 9.3 ; max. lat. 3.5 mm. The principal characteristic of this species is the strong presutural thread, In the specimens collected the terminal varix was not quite completed, but when this occurs the outer lip is probably stouter than shown by the figure.”

Online Resources

WoRMS record 871961

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