CRETACEOUS FOSSILS. 211 



A. Hopfmannii, Gabb. 



A. Hoffmannii, Gabb ; Vol. 1, p. 65, pi. 11, fig. 13, 13 a; pi. 12, fig. 13 b. 



Id., Vol. 2, p. 131, pi. 20, fig. 8, 8 a. 



Shasta Group, Horsetown, and Cottonwood Creek. 



A. Kemondii, Gabb. 



A. Remondii, Gabb ; Vol. 1, p. 66, pi. 12, fig. 14, 14 a, 15. 

 Shasta Group, Cottonwood Creek ; Chico Group, Pence's. 



A. Batesii, Trask. 



A. Batesii, Trask ; Proc. Cal. Acad., 1855, Vol. 1, p. 40. 

 A. Batesii, Gabb; Vol. 1, p. 67, pi. 13, fig. 16, 16 a. 

 A. Batesii, Gabb; Vol. 2, p. 132, pi. 20, fig. 9,9 a; pi. 21, fig. 10, a, b. 

 Shasta Group, Cottonwood Creek, Chico Group, Benicia, and south of Mount 

 Diablo. 



A. Tehamaensis, Gabb. 



A. subtricarinatus, Gabb (not d'Orb.) ; Vol. 1, p. 60, pi. 10, fig. 4. 



A. Tehamaensis, Gabb ; Vol. 2, p. 132. 



Shasta Group (?), Battle Creek, Tehama County. 



A. Chicoensis, Trask. 



A. Chicoensis, Trask; Proc. Cal. Acad., Vol. 1, p. 85, pi. 2, fig. 1. 

 Id., Gabb; Vol. 1, p. 68, pi. 13, fig. 17, 17a, 17 b. 



Chico Group, Chico Creek, Pence's, Kelly's, Siskiyou Mountains, San Luis 

 Gonzaga, Cottonwood Creek. 



A. Suciaensis, Meek. 



A. complexus var. Suciaensis, Meek; Proc. Phil. Acad., 1861, p. 317. 

 A. complexus ? Gabb ; Vol. 1, p. 69. 

 A. Suciaensis, Gabb; Vol. 2, p. 133, pi. 21, fig. 11, a, b. 



Chico Group, Polsom, near Mount Diablo, and Sucia Island, in the Gulf of 

 Georgia. 



A. Vancouverensis, Meek. 



A. Vancouverensis, Meek ; Proc. Phil. Acad., 1861, p. 317. 

 Comax, Vancouver Island. 



