SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 87 



Prehistoric Fauna, of CaLlifornia. 



PLATE 6. 



65-67 Pecten (Lii-opecten) estrellanus, Conrad. Tertiaiy. 

 Liropecten estrellanus, Con., Pacif. R. R. Report, Vol. 



VI, 1850, p. 71, pi. 3, fig. 15. Vol. VII, p. 191. pi. 3, 



figs. 3, 4. 

 P. crassicardo. Con.. Proc. Phil. Acad. Nat. Sc Dec. 



1862. p. 291. 

 Spondylus estrellanus, Con., Pac. R. R. Rept., Vol. \Ti, 



p. 191, pi. 1, fig. 3. 

 Liropecten estrallanus, Con., L. crassicardo, Con., L. 



volaeforniis. Con., Proc. Phil. Acad. Nat. Sc, 1862, 



p. 291. 

 Pecten pabloensis, Can., Pac R. R, Rept., VI, P. 71, 

 • pi. 3, f. 14. 



Dr. Cooper is of the opinion that these figures on plate 6, from two 

 specimens, show the combination of characters assigned by Conrad to 

 three species, and that all the above-named species mar be classed under 

 two, P. estrellanus and P. pabKieusis. (See Bulletin No. 4, loe. cit.) 



PLATE 7. 



Pliocene Fossils from San ]\Iiguel Island, California: 



1. Mytilus calif ornianus, Conrad. 



Quaternary? 



2. Clementia subdiaphana, Carpenter. 



Three specimens. 



3. Turritella Hoffmani, (Jabb. 



Two specimens. 



4. Conchocele disjuncta, Cabb. 



5. Clypeaster Gabbi, Remond. 



Two specimens. 



6. Ostraea Veatchii, Gabb. 



7. Callista (Amiantis) Callosa, Conrad. 



8. Standella californica, Conrad. 



9. Turbinella caestus, Broderip. 



Two specimens. 



(The above-named fossils were collected by the late C. D. Voy, and 

 determined by Dr. Cooper. Voy's manuscript has no reference to the 

 figures. The writer having collected the same species, together with 

 others not represented on the plate, several years previously, is enabled 

 to determine the species from the illustrations.) 



