| Saxicavella sagrinata Dall and Simpson, 1901 Puerto Rican Saxicave | 
| Scanning Electron Micrographs (SEM) Of Fossil Specimens | 
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| Lower Pinecrest beds, Upper Tamiami Formation, Sarasota County, Florida (4.71 mm.). SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL. | 
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| Dredged in 175 ft., 65 mi. E. St. Augustine, Florida by Ted Yocius in 6/72 (4.57 mm.). Scanning electron micrograph performed under the auspices of the Dept. of Invertebrates of the United States National Museum with the excellent technical assistance of Ms. Yolanda Villacampa. |