TABLE OF SPECIES. 



o.'t> 



GENERA AND SPECIES. 



'.• Atrvjia bisulcata, Kmmons 



10 — deflecta, Hall 



11 — recurvirostra, " 



12 — exigua, ** 



13 — modesta, Say 



14 — circulus, HaU 



15 — ambigua, " ....... 



16 — hemiplicata, " 



17 — sp. indel 



18 — subtrigonalis, /fa// 



19 — increbescens,* *' 



■20 — dentata, " 



21 — sordida, " 



ACEPHALA. 



1 Ambonychia mytiloides, Hall 



2 — bellastriata, " 



3 — orbicularis, Canratt 



4 — amygdilina, i/a// 



5 — undata, Conrad 



B — obtufm. Hall 



7 — ? »p. indtt 



8 — radiata. Hall . . . . 



9 — carinata, Goldftat 



1 Avicula trentonensis, Conrad 



2 — elliptica, Hall 



S — insueta, Co/iro'i 



4 — demissa, " 



5 — ? desquamata. Hall 



1 Modiolopgis mytiloides, Hall 



2 — parallela, Conrad 



3 — faba, " 



4 — nasutus, " 



5 — arcuatu9. Hall 



6 — subspatulatus, " 



7 — latus, " 



8 — carinatus, " 



9 — aviculoides, " 



10 — trentonensis, Conrad 



11 — modiolaris, " . . .. 



12 — truncatus. Hall 



13 — curta, Conro'i 



14 — tp. indet ) 



" — terminalis, //a// ) 



15 — anodonloides, Conrad 



16 — .' nuculiformis. Hall 



1 Moiliola? obtusa, " 



1 Tellinomya nasuta, Hall 



2 — sang:uinolaroidea, " 



3 — gibbosa, " 



Plate and figure. 



XXXIIl, 



xxxiii, 

 xxxiii, 

 xxxiii, 

 xxxiii, 

 Xxxiii, 

 xxxiii. 



3 a-e 



4 a, b 

 5a-d 

 6 a - d 



1-5 



1 a - c 

 Ha-c, 9 ab 



xxxiii, 10 a - f 

 xxxiii, II a - c 

 xxxiii, 12 a - c 



( xxxiii, 13 a - y 



C Ixxix, 6 

 xxxiii, 14 a - e 

 xxxiii, 10 



2 

 4 a - c 

 5o-d 



6 o - c 



7 a, 6 



8 a, 6 

 9o, 6 



4 a - m 



5 a, i 

 la-d 

 3 



1 a,b 

 la.b 



3 a, b 



4 a, b 

 5 



6 a- d 

 4 



xxxiir 



XXXV i, 



xxxvi, 



xxxvi, 



xxxvi, 



xxxvi, 



xxxvi, 



Ixxx, 



Ixxx, 



xxxvi, 



xxxvi, 



Ixxx, 



Ixxx, 



Ixxx, 



XXXV, 



XXXV, 



[ XXXV, 



I Ixxxii, 



I XXXV, 7 



[Ixxxi, 2 

 XXXV, 8 

 XXXV, 9 a, 6 

 XXXV, 10 a, b 

 XXXV, 11 o - « 

 xxxvi, 1 a, 6 

 xxxiv, 10 

 Ixxxi, 1 ; Ixxxii, 1 

 Ixxxi, 3 a, b 

 Ixxxi, 4 ; Ixxxii, 2 



[ Ixxxi, 5 a, b 



[ xxxiii*, 5 

 Ixxxii, 3 a - e 

 Ixxxii, 5 a, 6 

 X. 1 

 xxxiv, 

 xxxiv, 

 xxxiv, 



3 o-c 



4 a,b 



5 a, 6 



Page. 



139 

 MO 

 140 

 141 

 141 

 142 

 143 

 144 

 145 

 145 

 14G 

 289 

 148 

 148 



315 

 163 

 164 

 165 

 165 

 107 

 167 

 292 

 294 

 161 

 162 

 291 

 292 

 292 

 157 

 158 

 158 

 298 

 159 

 296 

 159 

 159 

 160 

 160 

 161 

 161 

 294 

 296 

 297 

 297 

 318 

 298 

 293 

 40 

 152 

 152 

 153 



Rocks & Groups. 



+ 



+ 



+ 



+ 



+ 



+ 



• Compare jJ. capax, Conrad, Jour. Acad. Nat. Sciences, Vol. viii, pag. 2C4, pi. 14, fig. 21. 



41-2 



