TABLE OF SPECIES. 



GENERA AND SPECIES. 



Atrv]>a bisulcata, Kmmons , 



— deflecta, HaU . 



— lecurvirostra, 



— cxii^ua, 



— modesta, f-'ai/. 



— circulus, 



— ambi;4ua, '• 



— lierniplicata, *' 



— up. btilct 



— sublrigonalis. Hall 



— increbescens,* 



U) 



11 



12 



13 



11 



15 — 



10 — 



n — 

 IS — 



19 — 



■20 — 



21 — 



dentata, 

 sordida. 



1 



2 — 



3 — 



4 — 



5 — 

 U — 



Ha' I 



ACEPHALA. 

 Ambonychia mytiloides, 



— bellastriata, " 



— orbicularis, Conrad . . 



— amygd-ilina, i/a// . ... 



— luidata, Conrad 



obtusa, HaU 



— : sp. indit . 



— radiata, /faW 



— carinata, Goldfuss . . . . 

 Avicula trentonensis, Conrad . , 



— elliptica. Hall 



— insueta, Conral 



— demissa, " 



— ? desquaniata, Hall 



Modiolopsis mytiloides. Hall . . . 



— parallela, Conrad 



— faba, " 



nasutus. 



5 — arcuatus. Hall 



6 — subspatulatus, " .... 



7 — latus, " . . . . 



8 — carinatus, " . . . 



9 — aviculoides, " . , , . 



10 — trentonensis, Conrad . , . 



11 — modiolaris, *' . . 



12 — truncatus. Hall 



13 — curta, Conro'i 



1 4 — sp. indet 



" — terminalis, //«W 



1;'> — anodontoides, Conrad ... 



Ifi — ? niiculiformis. Hall 



1 Moiliola ? obtusa, " . . . . 



1 Tellinomya nasuta, Hall.... 



2 — sanguinolaroidea, " ... 



3 — ffibbosa, " ... 



Plate and figure. 



XXXIll 



xxxvi, 

 xxxvi, 

 xxxvi, 



xxxvi, 

 xxxvi, 



XNXvi, 



Ixxx, 



Ixxx, 



xxxvi, 



xxxvi, 



Ixxx, 



Ixxx, 



Ixxx, 



XXXV, 



XXXV, 



', XXXV, 



[ Ixxxii, 



J XXXV, 



[ Ixxxi, 



XXXV, 

 XXXV, 



i a - c 

 5 a - (i 

 a a- c 

 1 a,b 

 S a, b 

 a,b 



4 a- m 



5 a, b 

 2a-d 

 3 



1 a. b 



2 a, 6 



■J a. 

 i a. 

 5 



a- 

 4 

 7 

 •2 



8 

 9 a. 



XXXV, 10 a, b 

 XXXV, 11 a - c 



1 o, 6 

 10 



Ixxxi, 1 ; Ixxxii, 1 

 Ixxxi, 3 a. b 

 Ixxxi, 4 ; Ixxxii, 2 

 ■ Ixxxi, 5 a, b 



XXXVI 



xxxiv 



3 a-c 



4 a, b 



5 a, 6 



Page. 



1.39 

 IJO 

 140 

 Ml 

 141 

 142 

 143 

 144 

 14.'j 

 M.O 

 140 

 289 

 148 

 113 



315 

 163 

 164 

 165 

 165 

 107 

 107 

 292 

 294 

 161 

 162 

 291 

 292 

 292 

 l.-)? 

 158 

 1.58 

 298 

 159 

 296 

 159 

 159 

 160 

 160 

 101 

 101 

 294 

 296 

 297 



297 ; 



318 < 

 208 ' 

 293 

 40 

 152 

 152 

 153 



Rocks tc Grovp9. 



+ 



+ 



+'■ 



Compare .3. capax, Conrad, Jour. Acad. Nat. Sciences, Vol. viii, pag. 204, pi. 14, fig. 21. 



41-2 



