436 
Leptopoma Iuteostomum Sow. 1 83 
INI 
104 
>EX. 
Megalomastoma tortuosum P. , 
136 
— luteum P 
102 
— ventricosum 0. 220 
128 
— Massenae Less. 186 . 
107 
Moulinsia Nunezii Grat. . 
145 
— melanostomum Pet. 182 
104 
Myxostoma breve P. . . 
43 
— minutissimum Sow. 206 
118 
— Petiverianum Tr. 
43 
— niultilabre P. ... 
108 
Nerita elegans Mull. . . 
227 
— nitidum P. .... 
102 
— labeo Mull. . . . 
. 151 
— Panayense Sow. 188 . 
108 
— licinia Mull. . . . 
. 158 
— perlucidum Grat. 179 
103 
— ligata Mull. . 
221 
— perplexum Sow. 189 . 
109 
— lunulata Mull. 
. 316 
— pileus Sow. 198 . . 
114 
Oligyra occulta Say . . 
347 
— regulare P. 200 . . . 
116 
— orbiculata Say . . 
. 375 
— sericatum P. 187 . . 
108 
— rhodostoma Sw. 
, 398 
— tenebricosum Ad. & R. 203 
117 
Omphalotropis P. . . . 
. 306 
— undatum Mete. 195 
113 
aurantiaca Dh. 509 
309 
— vitreum Less. 178 . . 
101 
— dubia P. 512 . . 
, 310 
Licina Gray 
150 
— erosa Quoy 511 
. 310 
Borni P 
152 
— expansilabris P. 516 
312 
— dubia Gmel. 258 . . 
152 
— globosa Bens. 514 . 
311 
— evoluta Rv. 259 
152 
— hieroglyphica F. 503 
. 306 
— labeo Mull, 257 . . . 
151 
— multilirata P. 513 . 
311 
— Reeveana P. 260 . . 
153 
— plicosa P. 515 . . 
311 
— rugosa Browne . . . 
152 
— pupoides Ant. 504 . 
307 
Lithidion Gray 
176 
— rosea Gould 506 
308 
— depressum Sow. 297 . 
178 
— rubens Quoy 510 . 
309 
— desciscens P. 295 . . 
177 
— scitula Gould 508 . 
308 
— niveum Pet. 298 . . 
178 
— terebralis Gould 505 
307 
— Souleyetianum Pet. 296 
177 
— vallata Gould 507 . 
, 308 
— sulcatum Gray 294 
176 
Otopoma Gray .... 
, 179 
Lituus Mart 
59 
— albicans Sow. 301 . 
181 
— brevis Mart 
42 
— auriculare Gray 300 
, ISO 
Lucidella Swains 
337 
— ■ clathratulum Reel. 306 
. 184 
— aureola F. 563 . . . 
337 
— clausum Sow. 299 . 
179 
Megalomastoma Guild. . . . 
123 
— foliaceum Gray . . 
, 182 
— altum Sow. 227 . 
132 
— Guillaini Pet. 303 . 
. 182 
— alutaceum Mke. 221 . 
129 
— haemastomum Ant. 309 . 
186 
— Antillarum Sow. 232 . 
135 
— Listeri Gray 308 . 
185 
— auriculatum 0. 222 
129 
— Michaudi Gray . 
200 
— bifasciatum Sow. 216 . 
126 
— multilineatum Jay 313 
187 
— bitub erculatum Sow. 218 
127 
— naticoides Reel. 302 
181 
— brunnea Guild. . . . 
135 
— Philippianum P. 305 
183 
— chrysallis P. 224 . . 
131 
— politum Sow. 310 . 
186 
— croceum Sow. 215 . . 
125 
— pygmaeum Sow. 312 
187 
— cylindraceum Ch. 214 
124 
— spurcum Grat. 311 
. 187 
— - flavula Sw 
125 
— unifasciatum Sow. 304 . 
183 
— funiculatum Bens. 229 
133 
— vitellinum P. 307 . 
184 
— Guatemalense P. 226 . 
132 
Pachytoma occidentalis Sw. 
386 
— Guildingianum P. 230 
134 
— viridis Sw. . . . 
397 
— Layardii Gray . . . 
137 
Pomatias Stud 
296 
— Mani Poey 219 . . . 
128 
— auritus Zgl. 492 
297 
— Orbignyi P. 223 . . 
130 
— cinerascens Rm. 499 
303 
— pauperculum Sow. 231 
134 
— excissilabre Jan 
298 
— sectilabrum Gould 228 
133 
— gracilis Kiist. 501 . 
304 
— simulacrum Mor. 225 . 
131 
— Henricae Strob. . . 
301 
— suspensum Guild. . . 
135 
— maculatus Dr. 495 
300 
— tortum Wood 217 . . 
126 
— obscurus Dr. 493 . 
298 
