A MONOGRAPH OF THE GENERA CAUDVIANA, USTRONiA, TROSCHELVIANA, AND SEMITROCHATELLA (MOLLUSCA: ARCHAEOGASTROPODA: HELICINIDAE) IN CUBA WILLIAM J. CLENCH AND MORRIS K. JACOBSON CONTENTS Introduction 404 History 404 Radula 405 Distribution 406 Nomenclature 408 Enemies 409 Types 409 Abbreviations 409 Maps 409 Acknowledgments 410 Systematics 410 Key to Genera and Subgenera of Tribe Vianini "410 Genus Calidviana H. B. Baker . 410 Calidvimui littoricola (Pfeiffer) 411 Key to Species of U stroma 412 Ustronia Wagner 412 Ustronia sluanii sloanii (Orbigny) 413 U. sloanii aedilii Aguayo & A. Torre 414 U. acuDiinata actnninafa (Poey) 415 U. acuniinata columcUaris (Gundlach) ,.. 417 Key to Species of Tmschelviana S. S. 418 Genus Troschcl liana H. B. Baker 418 Subgenus TioscJiclviana S. S. 418 Troschclviana ( TmscJielviana) cnjthiaca (Sowerby) 418 T. ( Troschclviana ) chrijsochasma (Poey) 419 T. i Troschclviana) in<iulata (Poey) -„ 422 T. { Troschclviana) nicstrei (Arango) -423 Key to Species of Subgenus Cubaviana Subgenus Cubaviana H. B. Baker ._,. Troschclviana ( Cubaviana ) ptjramidalis (Sowerby) T. ( Cid)aviana ) rubromarp.inata ( Gundlach ) T. {Cubaviana) scopulorum ( Morelet ) Key to Species of Subgenus Microviana Subgenus Microviana __. Troschclviana (Microviana) rupestris (Pfeiffer) T. (Microviana) hians (Poey) T. (Microviana) pctitiana (Orbigny) T. (Microviana) holguinensis ( Aguayo ) T. (Microviana) meihfesseli ( Pfeiffer ) T. (Microviana) tumidula (Clench & Aguayo ) T. (Microviana) continua (Pfeiffer) T. (Microviana) s})ino})otna T. (Microviana) pfcifferiana pfeiffcriana (Pfeiffer) T. ( Microviana ) pfcifferiana najazacnsis n. ssp. T. (Microviana) granulum (Pfeiffer) T. ( Microviana ) callosa ( Poey ) Key to Species of Semitrochatella Genus Semitrochatella Agua\o & Jaunie Semitrochatella conica (Pfeiffer) S. alboviridis (Pfeiffer) S. babci (Arango) S. elongata (Orbigny) S. fuscula (Pfeiffer) 424 424 424 426 428 429 429 430 431 434 436 436 437 438 439 440 440 441 441 442 442 443 444 445 446 447 Literature Cited 448 Index Bull. Mils. Comp. Zool., 141(7): 403-463, August, 1971 462 403
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