212 University of California Publications in Geology [Vol.8 



from the California Mining Bureau Reports. 1 " There is a total of 

 thirty-three species listed, of which only seventeen are specifically 

 identified. One of the five localities is the Holser Canon locality, which 

 is here shown to belong to the same horizon as the beds in Elsmere 

 Canon; and the lists from the other four localities do not suggest an 

 age different from that of the one mentioned. 



The middle Fernando fauna listed by Eldridge is from Elsmere 

 Cation, where he collected thirty specifically identified forms. The 

 list includes the following which were not found at that locality by 

 the writer : 



Monia macrochisma Dall Pecten, cf. caurinns Gould 



Mnrex eldridgi Arnold Pecten, cf. parmeleei Dall 



Neptunea liumerosa Gabb Priene oregonensis Redfield, 



Olivella inlorta Carpenter var. angelensis Arnold 



The conclusion reached by Eldridge was that "the middle Fernando 

 fauna . . . probably represents the typical fossiliferous portion of 

 the Purisima and the lower part of the San Diego formation." 



The fossils listed by Eldridge in his upper Fernando fauna were 

 collected by Watts from three different localities. The list of species 

 from northwest of Santa Paula contains seventeen species common to 

 the writer's lower Fernando fauna, with which it should be classed, 

 though perhaps from a slightly higher horizon. The number of species 

 from the second locality is small, and their age is uncertain. Farther 

 west, near Ventura, is the Barlow's Ranch locality, which was also 

 included in the upper faunal zone, hut which is of upper Pliocene or 

 Pleistocene age, and very distinct from the lower Pliocene faunal zone. 

 Its affinity is with the Santa Barbara Bathhouse Beach and Packard 

 Hill Pleistocene faunas" of Arnold. This group forms an upper 

 Fernando faunal zone. The structural relationship of the Fernando 

 near Barlow's Ranch to that farther east is not known at present, 

 though the beds of this upper zone are probably equivalent to some 

 part of the fiuviatile conglomerates. 



There are thirty-eight species listed by Eldridge from the Fernando 

 of the Puente Hills, of which seventeen are common to the lower 

 Fernando list given by the writer. The beds are lithologically similar 

 to those in the Santa Clara River Valley, and belong to the lower part 

 of the Fernando. 



10 Watts, W. L., Bull. 19, Cal. Mining Bureau, p. 220, 1900. 



11 Arnold, Ralph, Geology and oil resources of the Snnimerland district, 

 California, U. S. Geol. Survey Bull. 321, 1907. 



