34 



Thomas. G. Thompson and Tsaihwa J. Chow 



Table I (cont.) 



Calcium Strontium 



Carbon 

 dioxide 



Organic 

 matter 



% 



Atom ratio 

 Sr 



Ca 



1000 



SUBORDER TROCHACEA 

 FAMILY TROCHIDAE 



Calliostoma canaliculatum ' Calif. 

 C. costatum Calif. 



C. gloriosum 

 Tegula brunnea 

 T. funebralis 

 T. montereyi 



Wash. 

 Calif. 

 Calif. 

 Calif. 



FAMILY TURBINIDAE 



Astraea inaequalis I Calif. 



ORDER PECTINIBRANCHIA 

 SUBORDER TAENIOGLOSSA 

 FAMILY EPITONIIDAE 



Epitonium groenlandicum \ Atlantic 



Epitonium sp. | Calif. 



FAMILY VERMETIDAE 



Petaloconchus montereyensis i CaUf. 



FAMILY LITTORINIDAE 



FAMILY CALYPTRAEIDAE 



Crepidula adunca ' Calif. 



C.fornicata | Mass. 



C. nummaria ] Calif. 



FAMILY 

 Polinices Heros 

 P. draconis 

 Natica sp. 



NATICIDAE 



Mass. 

 ' Wash. 

 Beaufort Sea 



SUBORDER STENOGLOSSA 

 FAMILY OLIVIDAE 

 Oliva litterata \ Florida 



Olivella biplicata \ Calif. 



37-1 

 38-8 



38-5 

 37-6 

 37-8 



38 

 37 

 38 

 37 

 37 

 37 

 38 

 37 

 37 



37-2 

 370 

 36-3 



37-5 

 37-4 

 38-2 



36-7 



370 

 36-8 



35-6 



38-4 

 38-7 

 37-2 

 37-8 

 38-6 

 37-5 

 38-4 



37-7 

 38 

 38-5 



37-7 

 38-8 

 37-8 



39-6 

 38-9 



0123 

 0130 



0199 

 0-204 

 0183 

 01 68 

 0161 

 01 62 

 0151 

 0-201 

 0-180 

 0180 

 01 64 

 0-170 



0-129 

 0-122 

 0-131 

 0-124 

 0-113 

 0-121 



0-120 



0-118 

 0-120 



0144 



0107 

 0107 

 0-142 

 0-155 

 0-140 

 0-125 

 0-121 



0140 

 0-149 

 0-153 



0-121 

 0-137 

 0-108 



0145 

 0113 



42-2 

 41-7 



41-0 



41-2 

 41-7 

 40-6 

 41-9 

 41-5 



41 



41-9 

 41-2 



40-2 



42-5 

 42-8 

 41-0 

 42-4 

 41-8 

 41-7 

 42-5 



42 

 42-3 

 42-3 



42-2 

 42-5 

 41-8 



42-8 

 42-4 



3-87 

 3-82 



4-95 

 2-96 

 4-73 

 4-06 

 3-64 

 3-99 



5-37 



3 07 

 4-80 



710 



27 

 84 

 72 

 62 

 50 

 39 

 77 



3-22 

 2-37 

 2-36 



2-96 

 2-28 

 3-54 



1-61 

 1-84 



1-52 

 1-54 



2-37 

 2-48 

 2-21 

 201 

 1-98 

 1-94 

 1-84 

 2-45 

 2-21 

 2-14 

 2 00 

 2-08 



1-59 

 1-51 



-65 

 -51 

 •38 



1-45 



1-50 



1-46 

 1-49 



1-85 



1-27 

 1-26 

 74 

 87 

 66 

 53 



1-44 



1-70 

 1-79 

 1-82 



1-47 

 1-61 

 1-31 



1-67 

 1-33 



