104 



INDEX OF SPECIES. 



Sphaenia 



Binghami, P 16, P 24. 



Californiea, 78, 87, 194, 

 211, 284, 301, 349, 

 351, V 210. 



fragilis, 29, 39, 105, 244, 

 300, P 24, P 530. 



luticola, 29. 



ovalis, 168. 



ovoidea, 88, 123. 

 Sphaerella 



tuniida, 30, 129. 

 Sphaerium 



dentatura, 164. 



lenticula, 165. 



meridionale, 165. 



nobile, 165. 



occidentale, 116, 165. 



ovale, 165. 



patella, 165. 



Spokani, 91, 165. 



striatinnm, 116, 164. 



subtransversum, 165. 



tumidum, 91, 165. 

 Spiraxis 



Cobanensis, 44. 



Lattrei, 44. 



Shuttleworthii, 44. 

 Spiroglyphus 



albidus, 43. 



lituella, 27, 108, 140. 

 Spisula 



fragilis, P 51. 

 Spondylus 



calcifer, 24, 107, 199, 256, 258, 

 241, 250, 277, 0312, 

 P 547, P 548, P 550- 



erassisquama, O 233. 



dubius, 182, O 312, P 153. 



ducalis, P 153. 



Estrellanus, 81. 



Lamarckii, 199, 250, 277, 



P 153, P 547- 



limbatus, 43, 290, 312. 

 pictorum, 233, 234, 265. 

 var. P 153. 



Spondylus 



priuceps, 0312. 



var. 182. 



radula, 290, 312. 



varians, O 233. 



Victories, 41. 

 ! Standella 



Californiea, 22,99, IJ 3j I2 6, 151. 



falcata, 126. 



fragilis, 27, 106. 



nasuta, 12, 99, 126. 



planulata, 99, 126. 



velata, 204. 

 Stenotrema 



gerinana, I57 

 Stephopoma 



var. bispinosa. 42. 



pennatum, 42. 

 Stoa 



ainmonitiformis, 42. 



subcreuata, 44. 

 Stomatella 



inflata, 37, 194, 275, 320. 

 Stramonita 



petrosa, 76. 

 Strategus 



inerunis, 94, 95. 

 Strebloceras 



anellum, 43. 



cornuoides, X 441, X 443. 



solutum, X 441, X 443. 

 Strephona 



incrassata, P 464. 



Pedroana, 76. 

 Strigatella 



effnsa, O 339. 



tristis, 24, no, 151, 177, 261, 



339, P 461. 

 Strigilla 



carnaria, 23, 27, 102, 151, 154, 

 195, 224, 227, O 228, 

 245, 303, 350, O 353, 



363, P 39, P 40, U 200. 

 dichotoma, 224, 303. 

 disjuncta, 40, 284, O 303, S 

 ' 1 60. 



