1916] Nornland: Corals from Cretaceous and Tertiary of California 63 



This species occurs at the type locality with the following char- 

 acteristic Tejon species: Trochocyathus imperialis, n. sp., Turbinolia 

 dickersoni, n. sp., Turbinolia pusillanima, n. sp., Cancellaria stantoni 

 Dickerson, Conns hornii Gabb, Ficopsis remondii Gabb, Rimella simplex 

 Gabb, Terebra calif ornica Gabb, Turritella andersoni Dickerson, Turris 

 fresnoensis Arnold, Venericardia planicosta hornii (Gabb). 



TROCHOCYATHUS IMPERIALIS, n. sp. 

 Plate 4, figures 11, 12 



Type from University of California Department of Palaeontology collections 

 from locality 1817. 



Corallum short, cornute, basal part small and curved in the direc- 

 tion of the lesser transverse diameter. Section cut transversely to 

 longitudinal axis has elliptical outline. Small scar of attachment 

 shown at base. Costae about sixty-four, granular, twelve show stronger 

 development. Between the more prominent costae are three to five of 

 les"s prominent development, becoming more numerous around upper 

 portion of corallum. In transverse section cut about two-fifths from 

 base, most of the septa of the first three cycles reach the columella. 

 Fourth cycle complete. Pali present inside of first three cycles. 

 Synapticulae which appear to be incomplete present. Columella 

 fasicular. The measurements of the type were as follows : height of 

 corallum, 19.8 mm. ; greater transverse diameter, 14.6 mm. ; lesser 

 transverse diameter, 13.1 mm. 



Occurrence at University of California localities 1817, 1412. 



At the type locality this species occurs with Fldbellum(f) mer- 

 riami, n. sp., and its associated fauna. 



TROCHOCYATHUS OREGONENSIS, n. sp. 

 Plate 4, figures 9, 10 



Type from Forty-nine Mine, Jackson County, Oregon. 



Corallum elongate, slightly curved in direction of the lesser trans- 

 verse axis. Transverse section circular to subcircular. Costae forty- 

 eight, rather prominent, granular, rounded, of the same size. Septa 

 corresponding in number to the costae, rather thick, in four cycles of 

 which only the first reaches the columella. Pali well developed, before 

 the first three cycles of septa. Columella strong, fasicular. Greater 

 transverse diameter of corallum, 8 mm. ; lesser transverse diameter, 

 7.7 mm. ; height, 29 mm. 



Occurrence at Forty-nine Mine, Jackson County, Oregon. Accord- 

 ing to F. M. Anderson, the fauna from this locality is lower Chico. 



