116 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



1938. Callista robusta (Meek and Hay den). . Cotypes. 



Montana (Cret.). Deer Creek, North Platte, Wyoming. 



Meek and Ha3-den, Proe. Acad. Nat. Sci. Phila., for 1861, p. 443. 

 = Callista (Dosiniopsis) nebraseensis. 



162525. Callista subdiaphana pedroana Arnold. Holotype. 



Pleistocene. Deadman Island, off San Pedro, California. 

 Arnold, Mem. Calif. Acad. Sci., Ill, 1903, p. 144, pi. 13, fig. .2. 



232. Callista ( Aphrodina ? ) tenuis (Hall and Meek). 



Plesiotypes. 

 Fort Benton or Colorado (Cret.). Bear Creek, near base 

 of Black Hills, South Dakota. 



Meek, Rept. U. S. Geol. Surv. Terr., IX, 1S76, p. iSS, pi. 5, figs, 

 ia-d. — Stanton, Bull. No. 106 U. S. Geol. Surv., 1893, p. 109, 

 pi. 24, figs. 7, 8. 



113637. Callocardia 1 Agriopoma ) gatunensis Dall. Holotype. 



Gatun (Oligocene. ) . Near Gatun, Panama Canal, Panama. 



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

 p. 1260, pi. 54, fig. 1. 



6392a. Callocardia (gatunensis var. 1 multifilosa Dall. Holotype. 

 Gatun (Oligocene ). Near Gatun, Panama Canal, Panama. 



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

 p. 1 261, pi. 54, fig. 15. 



164870. Callocardia (Pitaria?) kincaidii Dall. Holotype. 



Miocene. Popof Island, Shumakins, Alaska. 



Dall, Harriman Alaska Exped., IV, 1904, p. 115, pi. 10, fig. 1. 



2350a. Callocardia ( Agriopoma ) sayana Conrad. Holotype. 



Miocene. York River, Virginia. 



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

 p. 1 261. pi. 54, fig. 16. 



1 14747. Callocardia (Agriopoma) sincera Dall. Holotype. 



Chipola (Oligocene). Baileys Ferry, Chipola River, Cal- 

 houn Count}', Florida. 



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

 p. 1260, pi. 55, fig. 12. 



13944. Callonema occidentalis Walcott. Cotypes. 



Middle Devonian. Combs Peak, Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 1S9, pi. 16 

 figs. 3, 3a. 



43518. Callopora ampla Ulrich. Cotypes and figured sections. 



43519. Trenton (Ord.). Cannon Falls and Fountain, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept.. Ill, Pt. I, 

 1S93, p. 2S1, pi. 23, figs. 13. 15, 18-20, 22, 23, 27, 2S. 



