INDEX OF SPECIE3. 



59 



Hemicardium 



biangulatum, 23, 38, 75, 97, 106, 



128, 201. 



gramferum, 23. 

 medium, 38, 201. 

 obovalo, 155. 

 Hemifusus 



Belclieri, 60. 

 Heterodonax 



bimaculatus, 12, 27, 38, 105, 



112, 126, 151. 

 vars. 23. 



Pacificus, 78. 

 Hiatella 



oblonga, 221. 

 Hiatula 



compacta, 151. 

 Nuttallii, 74. 

 Hima 



dccussata, P 497. 

 Hinnites 



Californiensis, 13. 

 crassus, 81. 



giganteus, 8, 13, 14, 20, 22, 25, 

 26, 81, 131, 151, 169, 164, 

 O 193, 233, 290, 312, 

 0350,0351. 

 Nicklinianns, 13. 

 Nuttalli, 193. 

 Poulsoni, 8, 13, 131, 193, 



O 233, 290. 

 Hipponyx 



antiquatus, 27, 108, 140, 194, 

 O 255, O 324, 363, 365, 

 P 296, P 297, P 298, R 3. 

 australis, 236, 255, P 299, 



P 538, R 3- 



barbatus, 24, 37, 108, 140, 194, 

 195, O 255, 275, O 324, 

 366, P 299, R 3, R 4. 

 barbatus, var. costellatus, R 4. 

 eranioides, 114, 239. 

 crispus, P 299, R 4. 

 effodiens, R 5. 



foliaceus, 239, 255, P 296, 

 P 546, R 3. 



Hipponyx 



Gray anus, 24, 27, 37, 108, 194, 

 O 184, 193, 200, 230, 

 255, 275, 282, O 353, 

 360, 361, 366, P 299, 

 R 4 , R5. 



mitralis, P 297. 



mitrula, 226, 324, O 363, 

 P 297, R 3. 



Panamensis, 255, O 275, O 

 324, 363, P 297, R 3. 



planatus, 140, 255, 284, 

 324, P 298. 



radiatus, 194, 184, 200, 

 230, 255, 275, P 299, R 4. 



serratus, 27, 98, 140, 195, 256, 

 O 226, 236, 239, 255, 

 324, 364, P 296, P 297, 

 P 300, P 549, R 3, R 5. 



subrufus, 37, 194, 282, 230, 

 275, 363, R 4. 



tessellatus, P 90, P 549. 



tuberculatus, R 4. 



lumens, 23, 27, 140, 282. 

 Homalopoma 



sanguineum, 23, 74, 113. 

 Hyala 



rotundata, 104, 217. 

 Hyalaea 



tridentata, 132. 

 Hydrobia 



compacta, 104, 217. 



stagnalis, P 361. 



ulvse, 20, 142, 257, 327, 

 366, P 361. 



lanacus 



Lessonii, 2, P 280. 



squama, 2, P 280. 



unguiculus, P 281. 



unguiformis, P 284. 

 lanthina 



bifida, P 185. 



communis, 74, 366, P 186. 



decollata, 52, 107, O 251, 316, 

 364, P 187. 



