660 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



109231. Transennella caloosana Dall. Holotype. 



Pliocene. Caloosahatchie, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila. , III, Pt. VI, 1903, 

 p. 1242, pi. 57, fig. 2. 



1 15 165. Transennella carolinensis Dall. Holotype. 



Miocene. Natural Well, Duplin County, North Carolina. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1242, pi. 55, fig. 4. 



109230. Transennella chipolana Dall. Holotype. 



Chipola (Oligocene). McDonald's ranch, Chipola River, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1241, pi. 57, fig. 6. 



135890. Transennella santarosana Dall. Holotype. 



Oligocene. Oak Grove, Santa Rosa County, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1241, pi. 57, fig. 13. 



1 14590. Transennella utica Dall. Holotype. 



Chipola (Oligocene). McDonald's ranch, Chipola River, 

 Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, 

 p. 1240, pi. 57, fig. 12. 



12303. Trapezium bellefourchensis Whitfield. Cotypes. 



Jurassic. East of Belle Fourche River, near Bear Dodge 

 Butte, Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources, Black Hills Dakota, 1880, 

 p. 364, pi. 5, figs. 1-4. 



107794. Trapezium claibornense Dall. Holotype. 



Claibornian (Eocene). Claiborne, Alabama. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. V, 1900, 

 pi. 43. figs. 9, 10; Pt. VI, 1903, p. 1498. 



7846. Trapezium micronema Meek. Holotype. 



Colorado (Cret.). Sulphur Creek, Bear River City, Wyo- 

 ming. 



Meek, Sixth Ann. Rept. U. S. Geol. Surv. Terr., 1873, p. 493.— 

 White, Eleventh Ann. Rept. U. S. Geol. Surv. Terr., 1879, 

 p. 293, pi. 10, fig. 5a. 



= Barbatia micronema. 



1 231 7. Trapezium subequalis Whitfield. Cotypes. 



12329. Jurassic. Red Canyon Creek, Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills Dakota, 1880, 

 P- 365, pi. 5, figs. 5-8. 



7813. Trapezium truncatum (Meek). Cotypes. 



Cretaceous. Salt Lake, Utah. 



White, Eleventh Ann. Rept. U. S. Geol. Surv. Terr., 1879, p. 292, 

 pi. 10, figs. 6a, 6b. 



See Pachymya ? truncata. 



