Publications of the United States Government. 53 



Pacific Railroad Reports, vol. 5. (Continued.) 



Article X. Fort Yuma to Carrizo Creek ; Carrizo Creek to San 

 Diego. 

 XI. Observations on the orography and general features of 

 relief of the middle and southern portions of Cali- 

 fornia. 

 XII. Geology of the vicinity of San Francisco. 



XIII. Tertiary formations of Ocoya Creek, Monterey, and 



other localities. 



XIV. Observations on the Tulare Valley. 



XV. Geology of the Tejon Pass and Canada de las Uvas ; 

 section of the Sierra Nevada. 



XVI. Observations on the southern part of the Great Basin. 



XVII. The Colorado Desert. 



XVIII. Notes on the Gold Region. 



XIX. Building materials ; coal ; lignite ; bitumen. 



XX. Metals, ores, and minerals. 



Appendix, Article I. Notice of the fossil fish ; by Louis Agassiz. 

 pp. 313-316, pi. 1. 



The following species from Ocoya Creek are described and figured : 

 Echinorhinus Blakei, n.sp. ; Scymnus occidentalis, n.sp. ; Galeocerdo 

 productus, n.sp. ; Prionodon antiquus, n.sp. ; Hemipristic hetero- 

 pleurus, n.sp. ; Carcharodon rectus, n.sp. ; Oxyrhina plana, n.sp. ; 

 O. tumula, n.sp. ; Lamna clavata, n.sp. ; L. ornata, n.sp. ; Zygohates 

 sp.? 



Appendix, Article II. Descriptions of the fossil shells ; by T. A. 

 Conrad, pp. 317-329, pi. 2-9. 



From Canada de las Uvas : Cardium linteum, n.sp. ; Dosinia alta, 

 n.sp. ; Meretrix Uvasana, n.sp. ; M. Calif orniana, n.sp. ; Grassatella 

 Uvasana, n.sp. ; C. alta, Conrad ; Mytilus humerus, n.sp. ; Cardita 

 planicosta; Natica oetiies, Conrad ; JV. gihhosa, Lea ; N. alveata; 

 Turritella Uvasana, n.sp. ; Volutatithes Calif orniana, n.sp. ; Busy- 

 con? Blakei, n.sp. ; Clavatula Calif ornica, n.sp. 



From Ocoya Creek : Meretrix decisa, n.sp. ; Natica coy ana, 

 n.sp. ; N. geniculata, n.sp. ; Bulla jugularis, n.sp. ; Pleurotoma 

 transmontana, n.sp. ; P. Ocoyana, n.sp. ; Syctopus Ocoyana, n.sp. ; 

 Turritella Ocoyana, n.sp. ; Colus arctatus, n.sp. ; Tellina Ocoyana, 

 n.sp. ; Pecten Ncvadanus, n.sp. ; P. catilliformis, n.sp. ; Cardium 

 sp. ?; Area sp.?; Solens\).1', Dosinia sp.l ', Venus sj).l ; Cytherea 

 decisa, Conrad. 



From San Diego: Cardium modestum, n.sp.; Nucula decisa, 

 n.sp. ; Carlula Diegoana, n.sp. ; Tellina Diegoana, n.sp. ; Mactra 

 Diegoana, n.sp. ; Narica Diegoana, n.sp. ; Trochita Diegoana, n.sp. ; 

 Crucihulum spinosum, n.sp. 



From Monterey County : Meretrix uniomeris, n.sp. ; Tellina con- 

 gesta, n.sp. ; Modiola contracta, n.sp. 



From Tulare Valley : Meretrix Tularena, n.sp. ; Area microdonta, 

 n.sp. ; Stramonita petrosa, n.sp. 



From San Pedro : Tellina Pedroana, n.sp. ; Tapes diversum, 

 n.sp. ; Saxicava airupta, n.sp. ; Petricola Pedroana, n.sp. ; Schiz- 

 othoerus Nuttalli, n.sp. ; Mytilus Pedroana, n.sp. ; Penitella spelaea, 

 n.sp. (Recent); Fissurella crenulata. Sow.; Buccinum inter- 

 striatum ? 



