Trionyx triunguis (Forskål 1775:ix)

Holotype: Not located; apparently lost, according to R. G. Webb (pers. comm. to John Iverson).

Trionyx egyptiacus Geoffrey Saint-Hilaire 1809:366

Syntypes (3): MNHN 4147, A.5186, and A.5227; MNHN 4147 designated lectotype by Bour et al. (1995:77). Pls. I–II in the original description presumably are among the types.

Trionyx labiatus Bell 1835:unnumbered

Holotype: OUM unnumbered; illustrated in the original description (Part IV, Pls. 2–4); apparently lost; not listed by Nowak-Kemp & Fritz (2010).

Trionyx mortoni Hallowell 1844:120

Holotype: Not located; possibly ANSP, but not listed in Malnate (1971).

Aspidonectes aspilus Cope 1860:295

Holotype: Not located; possibly ANSP or USNM; apparently lost; not listed in Cochran (1961), Malnate (1971), or Reynolds et al. (2007).

Fordia africana Gray 1869:219 a

Syntypes (2): BMNH 1947.3.5.42 (formerly 1862.9.2.33; skull catalogued separately as 1947.3.6.12) and 1947.3.5.70 (formerly 1862.9.2.34) .

Trionyx triunguis rudolfianus Deraniyagala 1948:30

Holotype: UPSZTY 2821 (formerly UUZM 2821); paratypes (6), originally in the Colombo Museum in Sri Lanka.