《miocene mollusks from bowden Jamaica part II.gastropods and discoussion of results》

Introduction3

New genera, subgenera, and sec-tions, with their type species6

Composition of the Bowden fauna8

General features8

Analysis of genera24

Origin of the Bowden fauna26

Ecology of the Bowden mollusks28

Temperature28

Salinity29

Character of bottom29

Depth32

Boring gastropods36

Summary as to ecology37

Age of the Bowden fauna39

Comparison with Miocene faunas elsewhere39

Tropical America39

Standard Tertiary section for tropical America39

Literature list for tropical America42

Caribbean region49

West Indies49

Dominican Republic49

Republic of Haiti59

Cuba60

Porto Rico, Vieques, and Mona62

St. Croix63

Lesser Antilles63

Mexico64

Central America67

Guatemala67

Costa Rica and adjoin-ing parts of Bocas del Toro Province, Pana-ma68

Panama Canal Zone and adjoining parts of Colon Province, Panama73

Northern South America78

Colombia78

Venezuela80

Curacao82

Trinidad83

Tobago84

Brazil85

Pacific Coast85

Northern South America85

Peru85

Ecuador86

Central America86

Panama86

Costa Rica88

Nicaragua89

Other American localities90

Atlantic Coast90

Florida90

Middle Atlantic States93

Pacific Coast94

Lower California94

California97

Europe99

North German Basin99

Aquitaine Basin99

Piedmont Basin101

The Orient103

Percentage of living species105

Conclusions as to age108

Systematic description of Bowden gastropods109

Gastropoda Euthyneura109

Pulmonata Stylommatophora109

Pulmonata Basommatophora109

Auriculidae109

Tralia109

Siphonariidae110

Siphonaria110

Williamia111

Pteropoda Thecosomata112

Cavolinidae112

Cavolina112

Diacria115

Opisthobranchiata Tectibranchiata117

Acteonidae117

Acteon117

Acteocinidae119

Acteocina119

Sulcularia123

Cylichnella124

Volvula125

Scaphandridae126

Scaphander126

Atys127

Cylichna129

Bullidae129

Bulla129

Ringiculidae131

Ringicula131

Gastropoda Streptoneura132

Pectinibranchiata Heteropoda132

Atlantidae132

Atlanta132

Pectinibranchiata Stenoglossa134

Toxoglossa134

Terebridae134

Terebra135

Hastula143

Turridae144

Polystira145

Crassispira147

Clathrodrillia152

Carinodrillia153

Compsodrillia155

Agladrillia157

Leptadrillia159

Syntomodrillia160

"Drillia"162

Bellaspira？162

Globidrillia163

Ancistrosyrinx164

Fusiturricula165

Ithycythara168

Adelocythara171

Pyrgocythara171

Platycythara172

Thelecythara173

Bactrocythara174

Pachycythara174

Brachycythara175

"Cythara"176

Glyphoturris177

Cryoturris178

Saccharoturris182

Acmaturris184

Tenaturris185

Euclathurella187

Miraclathurella189

Glyphostoma191

Lioglyphostoma193

Nannodiella194

Euryentmema195

Microdrillia196

Draphnella？198

"Daphnella"199

Scobinella199

Vaughanites200

Conidae201

Conus202

Cancellariidae218

Cancellaria218

Tribia223

Trigonostoma223

"Cancellaria"224

Rachiglossa225

Olividae225

Oliva225

Olivella229

Ancilla234

Marginellidae236

Marginella236

Cypraeolina241

Mitridae242

Mitra242

Vexillum244

Mitromorpha249

Xancidae250

Xancus250

Fasciolariidae252

Latirus252

Fasciolaria255

Fusinus256

Nassariidae ("Nassidae")259

Tritiaria259

Engoniophos263

Nassarius264

Trachypollia268

Pyrenidae ("Columbellidae")270

Columbella270

Pyrene271

Mitrella273

Anachis276

Metulella278

Nassarina279

Cigclirina281

Strombina282

Metula285

Muricidae287

Murex287

"Muricopsis"291

Typhis293

Thaididae295

Thais295

Coralliophilidae296

Coralliophila296

Pectinibranchiata Taenioglossa297

Cymatiidae297

Cymatium297

Distorsio299

Bursidae302

Bursa302

Cassididae304

Cassis304

Semicassis306

Sconsia308

Tonnidae("Doliidae")310

Malea310

Ficidae313

Ficus313

Amphiperasidae ("Ovulidae")314

Simnia315

Cypraeidae316

Cypraea316

Trivia318

Erato321

Strombidae322

Strombus322

Seguenziidae327

Seguenzia327

Triphoridae328

Triphora328

Cerithiopsidae329

Cerithiopsis329

Dizoniopsis331

"Cerithiella"331

Seila332

Cerithiidae332

Thericium332

Clava334

Bittium336

Bittiolum337

Alabinidae338

Alabina338

Litiopidae340

Alaba340

Planaxidae341

Planaxis341

Modulidae342

Modulus342

"Vermetidae"344

Vermicularia344

Lemintina345

Petaloconchus347

Turritellidae347

Turritella347

Caecidae350

Caecum350

Meioceras351

Fossaridae?352

"Fossarus"352

Architectonicidae354

Architectonica354

Spirolaxis358

Rissoinidae360

Crepitacella360

Rissoina362

Rissoidae371

Capulidae371

Capulus371

Hipponicidae373

Hipponix373

Calyptraeidae374

Cheilea375

Xenophoridae376

Xenophora376

Naticidae377

Natica377

Stigmaulax382

Tectonatica384

Polinices385

Eunaticina387

Sigatica388

Sinum389

Pachycrommium391

Pectinibranchiata Streptodonta394

Ptenoglossa394

Epitoniidae394

Epitonium394

Ferminoscala402

"Pliciscala"404

Janthinidae405

Janthina405

Mathildidae405

Mathilda405

Gymnoglossa407

Pyramidellidae407

Melanellidae407

Scutibranchiata Rhipidoglossa408

Turbinidae408

Turbo408

Astraea412

Homalopoma414

Colloniidae416

Otollonia416

Coanollonia417

Tricoliidae418

Tricolia418

Liotiidae421

Liotia422

Neritidae423

Neritina424

Smaragdia426

Trochidae427

Calliostoma428

Solariella431

Antillachelus433

Mirachelus434

Microgaza435

Chlorostoma437

Vitrinellidae437

Vitrinella438

"Circulus"439

Episcynia442

Solariorbis443

Teinostoma444

Pseudorotella445

Didianema447

Cocculinidae448

Cocculina448

Fissurellidae449

Fissurella449

Lucapina450

Lucapinella451

Diodora452

Puncturella454

Emarginula455

Rimula456

Hemitoma457

Scutibranchiata Docoglossa458

Acmaeidae458

Acmaea458

Description of plates460

Index541