INDEX OF SPECIES. 



Modiola 



subparpurea, 21, 50. 



'sulcata, P 119. 



vernicosa, 223. 



vulgaris, 211. 

 Modiolaria 



corrugata, 71. 



discors, 218. 



Ijevigata, 88, 130, 169, 218. 



lacvis, 218. 



marmorata, 88, 130, 169. 



nigra, 71, 218, 221. 



vernicosa, 218, 221. 

 Modulus 



carchedonicus, 286, 364, 

 P 352. 



catenulatus, 27, 109, 191, 230, 

 233, 257, 274, 326, 



364, P 353. 

 cerodes, 152. 

 disculus, 27, 36, 192, 202, 



225, 226, 230, 233, 



257, O 326, 364, P 353, 



U 205. 

 dorsuosus, 21, 226, 228, 



230, 257, 326, P 353, 



11205. 

 duplicatus, 226. 



var. 257, P 253. 



lenticularis, 21, 226. 



lividus, 274. 



trochiformis, 202, 257, P 



352. 



unidens, P 352. 

 fMormula ., : 



unifasciata, 33, P 433. 

 Monoceros 



brevidens, 13, 149, 201, 



285, O 340, \ 7 229. 

 brevidentatum, 25, 179, 191, 



231, 235, 269, 283, 



0341. 

 cingulatum, 29, 48, 180, 171, 



188, 238, 269, P 457, 



P 458, P 542. 

 cornigeruin, 341. 



Monoceros 



crassilabrum, 171, 235. 

 cyinatum, 48, 174, 177, 



235, 285, 294. 

 engonatuin. 83, 102, 149, 201, 



340, 349, V 228. 

 globulus, 235. 

 grande, 177, 188, 204, 



294, 341, 361. 

 lapilloides, 13, 83, 149, 201, 



231, 340, 349, V 229. 

 Ingubre, 10, 14, 48, 76, 151, 153, 



177, 178, 285, 294, 



341. 



var. 152. 



maculatum, 177, 201, 



341, V 229. 

 muricatura, 191,0 234,0 238, 



P 458, P 476, P 542. 

 plumbeum, 35. 

 punctatum, 83, 149, 177, 



201, 231, 235, 293, 



V22 9 . 



punctulatum, 201, V 229. 



?var. spiratum, 149. 



tuberculatuin, 234, 341, 

 0352. 



unicarinatum, 83, 149, 201, 

 231, 235, 285, 293, 

 V 229. 

 Monodonta 



carchedonia, P 352. 



catenulata, 238. 



fusca, 35. 



modulus, P 353. 



pyriformis, 228, U 204. 



Sayii, 286. 

 Montacuta 



chalcedonica, 34, 354, P 



53i. 



dionsea, 257. 

 divaricata, 73. 



elliptica, 248, 308, P 113. 

 obtusa, 34, 257. 

 subquadrata, 248, 308, P 



113, P 114. 



