ARNOLD — THE PALEONTOLOGY AND STKATIGRAPHY OF SAN PEDHO. 



19 



Acmaa insessa, V 

 Acmtea pelta, P 

 Acm<ra spectrum, P 

 AcUfon punctocalata, P 

 Afhnetc gracilior, E 

 Amphissa corriigata, P 

 Amphisxa ventricosa, E 

 Amphissa versicolor, P 

 Bela fidicula, N 

 Beta sancice-monica, E 

 Bittium asperum, P 

 Bittitim cali/ornicum, E 

 Bittium Jilosum, N 

 Bittium, quadrifilatum, P 

 Bittium ruijatum, P 

 Ccecum californicum, P 

 Cixcum crebricinctum, P 

 Ccecum magnum, ? 

 Calliostoma canaliculatum, P 

 Calliostoma costalum, P 

 Cerithidea cali/ornica, P 

 Chlorostoma/unebrale, P 

 Chlorostoma var. suhapertum P 

 Chlorosioma montereyi, P 

 Chlorostoma var. ligulatum, P 

 Chrysodomus rrctirostris, N 

 Chrysodomus tahulatus, P 

 Clathurella conradiana, E 

 Clipidella bimaculata, N 

 Clipidella callomarginata, P 

 Columbella californiana, P 

 Columbella chrysalloidea, P 

 CohtmbMa gausapala, P 

 Columbella var. carinata, P 

 Columbella oldroydi, E 

 Columbella tuberosa, P 

 Conus calij'ornicus, P 

 Crepidula aculeata, P 

 Crepidula adunca, P 

 Crepidula dorsata, P 

 Crepidula navicelloides, P 

 Crepidula onyx, S 

 Crepidula rugosa, P 

 Cryptochilon stelleri, N 

 Cylichna alba, P 

 Cythara branmri, E 

 Diastoma, sp. indet., ? 

 Drillia cancellata, N 

 Drillia hemphilli, S 

 Drillia inermis, P 

 Drillia merriami, E 

 Drillia montereyensis, N 

 Drillia var. penicillaia, P 

 Drillia torosa, P 

 Eulima falcata, S 



Cadulus nitenlior, ? 



GASTROPODA. 



Etilima hastata, S 

 Eulima micans, P 

 Eupleura muriciformis, S 

 Fissuridea aspera, P 

 Fissuridea 7nurina, P 

 Fissurella volcano, P 

 Fusus barbarensis, E 

 Fusus luieopictus, P 

 Fusus robustus, P 

 Fusus rugosus, P 

 Galerus mammillaris, P 

 Hipponyx antiqualus, P 

 Hipponyx c.ranioides, N 

 Hipponyx lumens, P 

 Isapis fenestrata, P 

 Ivara terricula, ? 

 Lacuna compacla, N 

 Lacuna porrecta, N 

 Lacuna solidula, P 

 Lamellaria stearnsii, P 

 Leptothyra bacula, P 

 Leptothyra carpenteri, P 

 Leptothyra paucicostata, N 

 Littorina planaxis, P 

 Littorina scutulata, P 

 Mangilia angulata, N 

 Mangilia var. pedroana, E 

 Mangilia interlirata, P 

 Mangilia oldroydi, E 

 Mangilia painei, E 

 Margarita var. nodosus, P 

 Margarita var. pedroana, P 

 Marginella jewetti, P 

 Melampus olivaceus, P 

 Mitramorpha filosa, P 

 Milramorpha intermedia, E 

 Monoreros engonatum, P 

 Murex J'estivus, P 

 ^N'assa californiana, P 

 N^assa fossata, P 

 Nassa mendica, P 

 Nassa var. cooperi, P 

 Nassa perpinguis, P 

 Nassa tegula, P 

 Natica clausa, N 

 Neverita recluzlana, P 

 Ocinebra barbarensis, P 

 Ocinebra interj'ossa, P 

 Ocinebra var. anpera, N 

 Ocinebra var. cerritensis, E 

 Ocinebra var. munda, N 

 Ocinebra perita, P 

 Ocinebra poulsoni, P 

 Odostomia gouldii, P 

 Odostomia var. avellana, N 



SCAPHOPODA. 

 Denlalium hexagonum, P 

 Dentalium indianorum, N 



Olivi'tla biplicata, P 

 Olivclta inlorta, P 

 Ollvilta pedroana, P 

 Phasianetla rompta, P 

 Plcurotoma bartschi, E 

 I'leurotoma dalli, E 

 Pliurotoma hooveri, E 

 Plcurotoma pedroana, E 

 Pleurotoma perversa, P 

 Pteurotoma re.naudi, E 

 Pleurotoma smithi, E 

 Priene oregonensis, P 

 Pnnclurella cucullala, N 

 Puneturclla galeala, N 

 Scala hindsii, P 

 Scala indianorum, P 

 Srala tincta, P 

 .S'ci'ia assimilata, P 

 Serpulorbis squatnigerus, P 

 Styli/erina tenuisculpta, ? 

 I'aranis strongi, E 

 Terebra simplex, P 

 Thalotia cafea, P 

 Tornatina cerealis, P 

 Tornatina culcitelltt, P 

 'J'riforis adversa, N 

 Trophon cerritensis, E 

 Trophon gracilis, P 

 'J'rophon multicostatiis, N 

 Trophon pedroana, E 

 Trophon scalariformis, N 

 Trophon sluarti, N 

 Trophon var. prcecursor, E 

 Trophon Iriangulalus, P 

 Turbonilla adleri, E 

 Turbonilla arnoldi, E 

 Turbonilla aurantia, P 

 Turbonilla crebrijilata, P 

 Turbonilla gibbosa, P 

 Turbonilla laminala, P 

 Turbonilla lowei, E 

 Turbonilla muricata, P 

 Turbonilla pentalopha, P 

 Turbonilla similis, P 

 Turbonilla subcuspidata, S 

 Turbonilla tenuicula, P 

 Turbonilla torquata, N 

 Turbonilla var. stylina, N 

 Turbonilla tridcnla, N 

 Turritella cooperi, P 

 Turrilella jeioetli, E 

 Vermicularia, sp. iudet., ? 

 Vilrinella williamsoni, P 

 Volvarina varia, P 

 Volvula cylindrica, P 



Denlalium pseudohexagonum. 



