Apalone spinifera emoryi (Agassiz 1857:407)

Syntypes (number uncertain): BMNH 1873.8.13.6 (formerly USNM 62, then recatalogued as USNM 7857; Reynolds et al. 2007:34–35); MCZ 1909 (3 specimens), 1910 (mistakenly listed as 1913 by Stejneger 1944:65, who included Agassiz’s original drawings [Pls. 20–21] of what was assumed to be this specimen), 1627 (2 specimens) (Barbour & Loveridge 1929:225; listed as MCZ 6126 by Reynolds et al. 2007:35), and 184852-53; and USNM 7637-39, 7642, 7644, 7855, 7856 (exchanged, but destination [“Chicago”] uncertain), 7858 (formerly USNM 94), 131841 (formerly USNM 7643), Osteo 2157 (lost)(Reynolds et al. 2007:34–35). USNM 7855 designated lectotype by Webb (1962:514), and was the only USNM syntype listed by Cochran (1961:227).