EXPLANATION OF PLATES. 441 
PLATE 121. 
FIGURE. PAGE. 
1-3. Baroda fragilis, d’Orb. Cretaceous; Gosauthal, . 183 
4, Mora cretacea, Conrad. Cret.; New Jersey, . Peal rast 
5. Grammysia ovata, Sandberger. Nassau, Germany, . 154 
6. Pleurophorus costatus, Brown. Permian; England, . 234 
7-9. Crassatellina oblonga, Meek. Cret.; Kansas, . 225 
10. Notomya securiformis, M’Coy. Carb.; Europe, . 230 
11-13. Eriphyla umbonata, Gabb. Cret.; California, . 226 
14,15. Astarte (Astartella) vera, Hall and Whitfield. 
Carboniferous; Illinois, . : ; F ‘ . 227 
16,17. Euloxa latisuleata, Conr. Miocene; U.S., . . 229 
18. Goodallia miliaris, Defrance. Eocene; France, . SED ONT 
19, 20. Goodalliopsis Orbignyi, Rainc. and Mun. Eocene ; 
Fercourt, . : ; : . 228 
21, 22. Grotriana semicostata, Spey er. Ter.; Germany, . 228 
93. Alveinus minuta, Conrad. Tertiary; Mississippi, . 228 
24. Lutetia Parisiensis, Deshayes. Eocene; Paris, . Pe y-ty 
25. Micromeris minutissima, Lea. Hocene; Alabama,  . 229 
26. Woodia marginalis, Desh. Sables inferieurs de Mercin, 229 
27,28. Elathia Arconatii, Issel. Red Sea, 2 229 
29, 30. Trigonodus Sandbergeri, Alb. Trias ; Ww irtemburg, 237 
31. Cardinia Listeri, Sowb. Liassic ; England, 237 
32. Cypricardinia lamellosa, Hall. L. Heidelburg Group 
New York, ; : . : ; hog 
33. Opis lunulata, Sowb. Dogger, . : : : . 230 
61, 62. Anthonia cultriformis, Gabb. Cret.; California, . 224 
PiLate 122 
34. Astarte borealis, var. semisulcata, Leach. (Magnified.) 
Wellington Channel, : : é . 226 
35. Astarte (Gonilia) bipartita, Philippi. Mediterranean, 227 
36. Astarte (Rictocyma) mirabilis, Dall. (Greatly enlarged.) 
Alaska, : : : ; : 227 
37. Anoplophora lettica, Quenst. Trias ; Friedrichshall, 237 
38. Opisoma Geinitziana, Stol. Cret.; India, . : . 230 
39, 40. Pachyrisma grande, Morris and L. Oolitic; Eng., 207 
41. Megalodon cucullatus, J. Sowb. Dev.; Hifel, . . 207 
42,43. Mecynodon carinatus, Goldfuss. Dev.; Europe, . 231 
44. Astartila intrepida, Dana. Carb.; New South Wales, 231 
45,46. Prosoceelus ovalis, Keferstein. Dev.; Germany, . 230 
47,48. Redonia, Deshayesiana, Rouault. Silurian; Europe, 231 
49, Cardita (Thecalia) concamerata, Chemn. Cape of 
Good Hope, : : F ; . 232 
50, 51. Palzocardita crenata, Miinster. Upper Trias; St. 
Cassian, Tyrol, . ; : 2 
52-54. Miodon orbicularis, J. Sowb. ‘Oolitic ; England, . 233 
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