Fig. 
Fig. 
Figs. 10-11. 
Fig. 
Fig. 
ho 
it) 
On 
or) 
“I 
16 
(402) 
PLATE XI. 
CLENODONDASINAS UA (Eien) ll) preroeienenatoneeey sieueis ave reiecer sete aia as 
. The internal cast of a large right valve. Near Iliff’s 
Pond, Locality 137 A. 
Wit nE CAN SUBORBICULARIS! Nal Spipennerseieciecieaslereieieiarcion 
A nearly complete left valve. Jacksonburg, Locality 
174 A. 
GYRRODON TAN CANADENSIS bill see esieieialsieieiareiieieieiiete 
. An incomplete right valve. Jacksonburg, Locality 174 A.“ 
VA EOC Do SLOMsN UMNO GUN (USE) cooacmoosoduseduboabe 
. A nearly complete right valve. Jacksonburg, Lecality 
174A” 
ORTHODESNAN CANAL ICULATUNMUODICh erectile aici 
. View of the right side of a nearly complete internal cast. 
Jacksonburg, Locality 174 A.*® 
GUINEAMEYAN TR WIN CAM Oi AGs Wilis1 Chaar teneei ene re te irene 
. A nearly complete right valve. Jacksonburg, Locality 
174 A. 
CYR TODONTASERLELENG Sia Uilisl Chenin anne eee eran 
View of the right valve of a nearly complete specimen. 
Drake’s Pond, Near Newton, Locality 136 B. 
IMODIOLOPSISMDEPRESS Anais peer snieieicienie ieee ieee renee 
A complete right valve. Jacksonburg, Locality 174 A.“ 
MODIOLOR SESE SE RSM YEN SLO en Se ciete tals =silel-leleielialerlesienelielels 
A complete right valve. Jacksonburg, Locality 174 A2 
MODIOLOPSISM Sp aU Get eee cls Serie eke ei eee ee ol oe eal 
Two right valves. Jacksonburg, Locality 174 A 
MODTIOLOPRSISH Spe ia de tvs a reashay aac oucvey cuencuicvese Srekoneuaiel Stoke vors 
. A small left valve, possibly M. jerseyensis. Jacksonburg, 
Locality 174 A.? 
MODIOLOPSIG HAR Aue (CONS) reciente re ieee 
. A right valve. Jacksonburg, Locality 174 A. 
. A left valve. Same locality. 
. Another right valve. Same locality. 
CHIDOEHORUS NEGEHCTRUS) Elan errae cieeniererieinieeiaiaen ee 
. A left valve. Jacksonburg, Locality 174 A.° 
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