494 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



115410. Peripneustes clevei Cotteau. Holotype. 



Miocene. Anguilla, West Indies. 



Cotteau, Kongl. Svenska Vet-Akad. Hand., XIII, 6, 1874, p. 40, 

 pi. 7, figs. 4-7. 



30203. Perisphinctes filiplex (Quenstedt) ? Plesiotypes. 



Jurassic. Moffats bridge, Tuolumne River, California. 

 Hyatt, Bull. Geol. Soc. Amer., V, 1894, p. 4.23. 



30202. Perisphinctes muhlbachi Hyatt. Holotype. 



Jurassic. Near Greenwood, El Dorado County, California. 

 Hyatt, Bull. Geol. Soc. Amer., V, 1894, p. 426. 



30204. Perisphinctes virgulatiformis Hyatt. Cotypes. 



Jurassic. Stanislaus River, opposite Bost wicks bar, Cali- 

 fornia. 



Hyatt, Bull. Geol. Soc. Amer., V, 1S94, p. 422. 



1 57841. Perissolax blakei (Conrad). Plesiotype. 



Lower Tejon (Eocene). Army Point, near Benicia, Cali- 

 fornia. 



Stanton, Seventeenth Ann. Rept. U. S. Geol. Surv., Pt. I, 1897, 

 p. 1045, pi. 67, fig. 1. 



21254. Perissolax brevirostris Gabb. Plesiotype. 



Chico (Cret.). Near Pentz, California. 



Stanton, Seventeenth Ann. Rept. U. S. Geol. Surv., Pt. I, 1897, 

 p. 1047, pi. 67, fig. 4. 



20103. Perna excavata White. Cotypes. 



Nanaimo (Cret. ) . Lucia, Sheep Jack, and Waldron islands, 

 Gulf of Georgia. 

 White, Bull. No. 51, U. S. Geol. Surv., 1889, p. 37, pi. 7, fig. 1. 



. 13329. Perna montana Conrad. Holotype. 



Miocene. San Buenaventura, Santa Barbara County, 

 California. 



Conrad, Rept. Expl. and Surv. R. R. Miss. Riv. to Pacific Ocean, 

 VII. 1S57, p. 195. 



43695. Peronopora uniformis Ulrich. Figured sections of holotype. 

 Lorraine (Ord.). Cincinnati, Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., V, 1882, p. 244, pi. 10, 

 figs. S, Sa. 



= Peronopora compressa. 



43943. Peronopora vera Ulrich. Cotypes. 



Utica (Ord.). Cincinnati, Ohio. 

 Ulrich, Amer. Geol., X, 1S88, p. 40. 



1 1 1908. Perplicaria perplexa Dall. Holotype and plesiot3pe. 



1 1 32 1 7. Pliocene. Caloosahatchie River, near Fort Thompson, and 



Shell Creek, De Soto County, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. I, 1890, p. 90, 

 pi. 3, fig. 1; Pt. II, 1S92, p. 228, pi. 13, fig. 4- 



