24 



TERTIARY AND QUATERNARY PECTENS OF CALIFORNIA. 



List of ,S'rni I'dhlii formation (upper Miocene) foxxlls — Continued. 



PELEcypiiDA — continueil. 



Pseudocardiuui gabbi ROmonil. 

 *Saxidomus gracilis Gould (L). 

 Solen sp. 



Tapes staminea Conrad (L). 

 Tapes staleyi Gabb (?). 

 *Tresus nuttalli Conrad (L). 

 *Zirphieasp. (C ?) 



GASTEHorODA. 



*Aem;ea sp. (C). 

 Bittium asperum Gabb (L). 

 Calliostoma n. sp. (?) Merriani (C?). 

 *Chlorostoma (?) sp. (C ?). 

 Crepidnla adimca Sowerby (L). 

 Crejiidula princeps Conra<l ? (L). 



GASTEROP<)D.\ — Continued. 



Fusus (?) sp. (C ?). 



Litorina ri^mondi Gabb (C). 



Litorina planaxis Phil. (L). 



Lunatia lewisii Gould (L). 



*Ocinebra (aff. ) cancellina Philippi (C). 



Ocinebra lurida ^Middendorf (?) (L). 



*01ivella pedroana Conrad (L). 



*Opalia sp. (C ?). 



Purpura canaliculata Duclos (L). 



Purpura saxicola Valenciennes (L). 



Ranella californica Hinds (L). 



*Tritonium (Priene ?) sp. (C ?). 



*Trochita tilosa Gabb. 



Trochita n. sp. Merriam (C). 



Trophon ponderosuni Gabb. 



Ill addition to tlie above the following species have been found in the Santa 

 Margarita formation (probable etpiivalent of the San Pablo) in the Salina.s Valle}', 

 Monter(\v (^ouiity. and southward: 



LiKt oj' Sinilii Minyiiritii fonnolion (= Srin Pablo) fositih J'roiii SallvnK Valleij anil soiilhirard. 



ECHIXOIDEA. 



Astrodapsis tumidus Keniond. 

 {^iilari> spines and fragraent.s of test.«. 



TELECYPODA. 



Area canalis Conrad. 

 Area (cf. ) microdonta Conrad, 

 (^ardium (cf.) meekianuni (iabb. 

 . Cardium (cf. ) quadrigenariiiin Conrad. 

 Chione n. sp. (large; coarse sculpture). 

 Chione sp. (medium sized). 

 (Uycymeris (cf. ) patulus Conrad. 

 Lima sp. 



Mactra (cf. ) californica Conrail. 

 Mactra (cf. ) falcata Gould. ^ 



Mytilus sp. (very large). 

 Ostrea attwoodi Gabb. 

 Ostrea bourgeoisii Esmond. 

 r)strea titan Conrad. 

 Pecten crassicardo Conrad. 

 Pecten discus Conrad. 

 Pecten eldridgei n. sp, 

 Pecten estrellanus Conrad. 

 Pecten estrellanus var. terminus n. var. 



I'ELECvpoiiA — continueil. 



Pecten hastatus .Sby. var. hericius ( iould. 



Pecten oweni n. sp. 



Phacoides acutilineatus Conrad. 



Pseudocardiuui (cf. ) gabbi Rcmond. 



Saxidomus (cf. ) gibbosus Gabb. 



Solen sicarius Gould. 



Tresus sp. 



Venus perteiiuis (ialib. 



liA.STEROPODA. 



Astyris sp. 



Chorus belcheri Hinds. 



Fusus ( aff . ) robustus Trask. 



Nassa sp. 



Natica or N^verita sp. 



Ocinebra (aff.) cancellina Philippi. 



Olivella (cf. ) pedroana Conrad. 



Pisania n. sp. (aff. ) fortis Carpenter. 



Trochita tilosa Gabl). 



Turritella sp. 



CRUSTACEA. 



Balanus estrellanus Conrad. 

 Tamiosoma gregaria Conrad. 



