INDEX. 



245 



Laqueus 



pictus, 111, 114, 115, ITS, 



205, 2-S3. 

 rubeUa, 33, 113. 

 mbellus. 111, 113, 114, 178, 



233. 

 suflfusus, 111, 113, 114, 178. 

 Larva, Development of, 1st and 2nd 



Period, 133, 134. 

 Lepar seu Patella, Rostrum anatis, 



206. 

 Limopsis aurita, 38, 201. 

 Singula, 4, 5, 13, 30, 187, 198, 202, 

 205, 208, 227, 230, 235. 



Adamsi, 34, 205, 215, 218, 219, 



235, 240. 

 affinis, 205, 206, 215, 235, 240. 

 albida, 221. 



anatina, 34, 200, 205, 206, 207, 

 208, 209, 210, (dorsal and 

 ventral valve) 211, (muscular 

 system) 212, 214, 215, 216, 

 217, 218, 220, 225, 235, 240, 

 241. 

 anatis, 235. 

 anatoni, 210. 

 antillarum, 228. 

 Antoni, 217. 

 Audebardi, 223, 225. 

 Audebarti, 206, 223, 225. 

 Chemnitzii, 206, 235. 

 compressa, 216. 

 Dumortieri, 218. 

 exusta, 205, 217, 235, 240. 

 hians, 205, 210, 217, 218, 235, 



241. 

 hirtula, 206, 235. 

 birundo, 205, 220, 235, 240. 

 jaspidea, 34, 205, 218, 235, 240. 

 lopidula, 34, 205, 218, 220, 



235, 240. 

 Lesueuri, 223. 

 lingua, 235. 

 Murpbiana, 205, 211, 215, 216, 



217, 218, 235, 241. 

 ovalis, 219. 220,235. 

 pyramidata, 208, 223, 226, 227, 

 238, 241. 



(=Glottidia Audebarti). 



226, 227. 

 Reevii, 205, 219, 235, 240. 

 semen, 220, 229. 

 smaragdina, 34, 205, 220, 235, 



240. 

 tumida, 216. 



Liiigula 



tumidula, 2o5, 216, 21S, 219, 



235, 240. 

 unguis, 235. 

 (Glottidia) Audebarti, 208. 



( ■) pyramidata, 2, 208, 214, 



215, 223. 

 Lingula (Glottidia), from Cuba, 229. 

 Lingulella, 227. 

 LingulidK, 4, 202, 205, 208, 222, 



230, 235. 

 Liothyris, 4, 230. 



arctica, 5, 6, 10, 68, 231. 

 Bartletti, 14, 231. 

 ccrniea, 6, 16, GS, 231. 

 cubensis, 11, 14, 08. 

 DaUi, 231. 



Moseloyi, (i, 11, 16, 68, 231. 

 spbacnoidca = cubensis, 6, 68. 

 sphenoidea, 11, 12, 13, 14, 68, 



231. 

 subquadrata, 6, 14, 68, 231. 

 uva, 6, 10, 11, 68, 231. 

 vitrca, 5, 6, 7, 8, 9, 11, 13, 14, 

 16, 21, 64, 67, 231. 



, var. Davidsoni, 9, 68, 



231. 



, var. minor, 9, 10, 68, 



231. 

 Wyvillii, 6, 15, 16, 68, 231. 

 Lyopomata = Tretentorata, 4, 183, 

 230, 234. 



Macandrevia, 5, 40, 232. 



cranium, 62, 65. 



tencra, 10. 

 Magadilbrm stages, 5, 107, 110. 

 Magas patagoniea, 99, 100. 

 MagaseUa, 4, 5, 53, 91, 92, 94, 2.30, 

 232. 



Adamsi, 33, 92, 90, 97, 177, 

 232. 



alcutioa, 92, 95, 102, 177, 232. 



crenulata, 92, 94, 95, 177, 232. 



Cumingi, 92, 97, 98, 117, 118, 

 177, 178, 232. 



fibula, 177. 



flexuosa, 75, 77, 92, 177, 232. 



Gouldi, 33, 92, 96, 177, 232. 



inoerta, 92, 101, 178, 232. 



inconspicua, 85. 



labradorensis, 92, 102, 177, 232. 



l;evis, 92, 100, 178, 232. 



Malvina;, 92, 100. 101, 178, 



MagaseUa 



patagoniea, 92, 95, 99, 177, 



232. 

 radiata, 92, 101,178, 232. 

 rhombea, 232. 

 spftzbergensis, 83. 

 suffusa, 75, 177. 

 Willemoesi, 111. 

 Magasinai, 4, 115, 230, 233. 

 Malleus, 205. 

 Mannia, 174. 

 Megathyns, 127, 131. 

 ei-stdlula, 139. 

 decoUata, 129, 144. 

 detrunoata, 128. 

 oblita, 104. 

 Megerlea stage, 64. 

 Megerlea pulcbella, 109. 



sanguinca, 109. 

 Megerlia, 4, 30, 57, 103, 126, 230. 

 erythroleuca, 233. 

 incerta, 38, 201. 

 JefFroysi, 103, 113, 178. 

 monstruosa, 155, 156. 

 oblita, 104. 

 pulcbella, 33, 43, 109, 110, 



179. 

 Reevei, 33, 179. 

 sang\iinea, 33, 103, 108, 109, 

 179, 233. 



, var. pulcbella, 179, 233. 



, var. lleevei, 109, 233. 



truncata, 13, 103, 104, 105, 

 106, 107, 108, 121, 125, 155, 

 156, 178, 233. 



, var. monstruosa, 103, 108, 



179, 233. 

 Willemoesi, 103, 111, 179, 233. 

 (Ismenia) Jeffreysii, 233. 



( ) sanguinea, 103. 



Megerliform stages, 5, 110. 

 Megerlina, 4, 103, 118, 230, 233. 

 Davidsoni, 126. 

 Lamarckiana, 124. 

 MegerKuffi, 4, 103, 230, 233. 

 Meleagrinaj margaritifera;, 11. 

 Morrisia, 130, 153. 



anomioides, 152, 234. 

 Davidsoni, 154. 

 gigantea, 104. 

 lunifera, 149. 

 semiuulum, 152. 

 Muscles, (lateral) 211, (transmedian) 



211. 

 MytUus lingula, 198, 206. 



