VOLUME 94, NUMBER 329 JANUARY 7, 1988 Neogene Paleontology in the northern Dominican Republic 7. The Subclass Ostracoda (Arthropoda: Crustacea) by W. A. van den Bold Paleontological Research Institution 1259 Trumansburg Road E Ithaca, New York, 14850 U.S.A. PALEONTOLOGICAL RESEARCH INSTITUTION Officers ERBSUSENP N o A PEL M e E I WILLIAM P. S. VENTRESS MIGESERESIDENE GC (oe На ПИ Due uM a JAMES E. SORAUF SECRETA о eu. ы ыны e HENRY W. THEISEN БАБО СЕЕ UA I л Жу оке oe AER JAMES C. SHOWACRE ASSISTANT DREASURER m vn on LM een aR JOHN L. CISNE ЕЛБЕСБОКХА d noc a EUR PETER R. HOOVER ЈОВО АРА СУВИ МЕЗЕ Se ЛИН СТН СГ HENRY W. THEISEN Trustees BRUCE M. BELL (to 6/30/90) WILLIAM А. OLIVER, JR. (to 6/30/89) RICHARD E. BYRD (to 6/30/89) EDWARD B. PICOU, JR. (to 6/30/89) JOHN L. CISNE (to 6/30/88) JAMES C. SHOWACRE (to 6/30/90) J. THOMAS Ротко, JR. (to 6/30/90) JAMES E. SORAUF (to 6/30/88) HARRY A. LEFFINGWELL (to 6/30/90) HENRY W. THEISEN (to 6/30/89) ROBERT M. 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Numbers of Palaeontographica Americana are priced individually, and are invoiced separately on request. for additional information, write or call: Paleontological Research Institution 1259 Trumansburg Road Ithaca, NY 14850 USA (607) 273-6623 “ds sueqejojsex. | ds suagajoysax "ds си “опр si4eqejorsex рјод ојпбиощ 511ә9әјо2р (prog) оугиогАузра! sidAoojnbuon y "ds “и “ороло орәшроу (spaowp3 оѕобоуиоэ ојјәшіроу (Apoag) офрпрола asako pono рјод озојпапл25 оиршпај Plog osojnisnd puoiang Plog ouod :толоцАообл ноја 75421A “46 хе әләу dopnasd рјод „ебоолр рицолезорпг5, "ds u поле фоузио2овјола “ds siud/oojuog “ds >и “оузәл олоци рој Ца (Арола) 0/024140J “y “yo “ds рәріѕәиоод (рјод) оџалошр рергзгиолоа! (рјод) оәј/нио papıseunsog 1 "ds ошојфзохоролоа у ‘ds vapiaypAr0410g Plog sddoys; vapiiaysAr040g “ds “и 'рарлизјо2 оәріләуАоолод зрломра ојцјо DapliaysA20I0g (əjssog рио uou) шоубпол ришомо (Apoag) офојпл1о5 ошионс) "ds си “бип! ojjeKasunw "ds suueqejojsexoa»tw. z ‘ds ома золоруу “ds рима золоруу (Арола) мец2у (uinjn2iu2020x0]) оуцзиозохој (Apoag) o/ono4eq ( 7) оф 7 Plog оғоуоош (оц 7) оу 1 plog орго; (оцэиоэохот) pq»uo»oxo] Plog Oxoid aypuy PIOg оләроцоцор ezo" spjei рио ¡¡aA10) оџјјепб оимобиоу Plog osseadap оишобиој (Apoag) psouuod чтелешАоовобпг (und) Ppyoosquusoy зеџиошлејн lung sisuaAaxyoupA» олпзәцХэшәң Plog оғо; дрершецоошобиое) €) ‘ds олмәу n3 2 'ds vunsay n3 (Арола) охејашоз 16 xe олплешАопа ИИ" (жол рио amoy) чзиоб, ай > in Plog 9495342 олплешку “ds си 'esuaoq doo AD) uossydosay AZ "ds “и “шпиоэшишор (иолејаолошко) иолефаолешко (род) оиоэшшор одолео "ds ојјелеш AZ 8 “ds оуәләш2 пә!ббпұ оуобупл “2 "yo "ds pjjeuou A) Кроз sijojues 7 “yo ds ојјелоцко Аролд опа 5 “yo “ds ојелецко рјод pupboiuiuop ојјелошкоу Plog 940/202 појело) “ds pepiubunjsn? Pioa мор DEPO) (pog) oynunu oquinbo5 (piog) оҙо;зо>о;зәбиоэ pquiinbo^ (Арола) зиојпбиојзел sayjpno> Plog sısuaadıu sapo) 5рјә! рио |j8A105 syoipew saypnoZ 5рүә! рио ||o/405 sau DJJaAuD "ds си "uejsie pjjeqiuo7 “ds рицолезошкд 09] рио amoy //¡assns "8 "yo “ds eeuu»o4g (prog) ожобиојао оџјгадорлоя Áppag osojesibuo| pipaiog (рјод) окојрипаолзош juny. "ds p1990//161y "ds u “odsea огеојјблу B (i ( ham] USGS 8530 = H 15207 111 П = H 15208 = NMB 16801 USGS 8528 = TU 1292 USGS 8733 USGS of Maury 8519-20 — Bluff 1 LI 5219 USGS 8526 = H USGS 8525 = H Bluff 2 Bluff 3 Table 3 “ds sueqejojsay “ds си 'опр si4egajojsex “ds си "pejuup 5иодејојзох L ds 1 “yo "ds suuagajoun (рјод) ououo»Auy»od suudAsoynBunıs, (Plog) о;оуџәргшшош оәрәдәрАцуэол y cds paniequ oues Plog 5/зиәоХо:о “с “yo “ds Dina oues “ds sn1yooJaj>g “ds си “ороло ојјешром y шло} (spaowp3) озобоциоз ојјәшроу (spapmp3) озобоиоз pjJeunpoy (ung) гәмоу eeu kopong Plog osojndnu»s buong Plog osojnisnd оиоипа (spje!4 рио үүәАлогу) sısuaungo6 оиошпа Plog /б/әдриов огршецооџшпа Plog ouod згалешАооблоја "46 xe әләуіХ Jopnasg рјод /4eboo4p рицолезорпега "ds си “10A9 уоузиозовјола (spj214 рио j[o4405) лојиржелр “16 хә siud/oojuog Z 7% олоцидорајАца “ds си ‘pyres asaysAr0j24/Yq "ds си ‘DANI олоциоорАјца "ds papiayjArossisag ров sisueqoup» оаршециоог га ¿plog wnunds gowoysinjjag бош “4 yo “ds 190/94 “ds Dapııay 040g y 95 pepueuobaog Plog /ddou»s, pepiequGooa0d "ds "u /осдощіојоэ оәріләуі/оолод (рјод) оә//цио оәрізәиоло/ (зә|550Ң рио youn) гиоубпол ошиомо "ds си //ѕғәрипоѕ ојјәХәѕипуү "ds "u бип] оуәХәзилуу (ung) гәмоу 2191450121 “ds оимаАзолоруу 2 чирицаон pJo2sipidp| (рузиозолпој) оузиозохој Plog s! 4 (ou Yd) DY, 7 (уолу) 040u40214/ (шпјпоилозохот) оузиозохој (Арола) 14eu2sy (шпјпоилозохој) оцзиозохот (Apoxg) 010] (мој рио eo) s! qst 5р-омрҙ T KU X es Ey 1 plog оргоу (pq2u020xo]) оцзиозохот рев о/ероц>ер euiHy "ds ош.обиоу Plog ossedep ош-обиоу (Арола) osouuod зіәләшіХоовобп/ "ds олмәуіАошәНң lung sisueKaxoupa» vandeuu iue] (ung) /4роғд quonia = a BER Plog оо>|а гргршециоошобиогу 3 `9 олплоцопа y ‘ds ounsayyAonz (Крол) oxejduio» “16 xe олплешАопа | ‘ds олплошко Н ‘ds onay y ‘ds DINJA Plog 9435342 олпләшХ—у "ds си “asusogounb (uosajdosayjAD) vossydossyAy "ds "u ‘wnuouwop (uosaydosayA >) uosadosəy Ay (Plog) ouo»iuuop оџалецко 9 “ds огргојуелоцко 8 "ds ојјелешко У ds ојјелешко Арола ѕуоишәѕ “2 "yo ds pjeueu A) Арола pagpjnd `) yo "ds ојјелошкоу Plog оиоогишор ојјелошкоу Plog оо/әо> појело (зәцэшүү) sisueojnoBoosod siepiad A^ "ds рәрішошцѕпә (Plog) onum oquinbo5 (рјод) oy0yso>0¡sabuo> pqwınboy (Appag) 5иојпбиозел sayıpnoy Plog sisueediu sayipno> spja!4 puo |[o/405 5/о/рәш sayıpnoZ spj@!4 рио ||o/405 siADu p[JaAD (ung) шоХ ојјеф од "ds си "ejsieb ојјед о "ds auaysA20/Adwio> (pog) o/o6uojqo оҙо/4аорлов Кроля psojesibuo| орлов PICADA OMS) ршен Аро:в osouuoj ‘g "yo “ds орлов (494991) onno juny “ds опеојублу € ‘ds oi»eojibay. 4 Jaja! jaja Plog 5///хә глешАоодшу ІШІП IE] ESI Table 1 Table 1.— Distribution of Ostracoda in samples from the Río Cana section. Narrower line = less than 10 specimens; wider line = 10 or more specimens. (жол рио әмон) s! 992! тецрирб рио олошідт] 5/зиәоләромол siad/oojuodo4q (Apoag) оџој Table 3.— Distribution of Ostracoda in samples from the Río Mao section. Samples with prefix H were collected by Dohm (Dominican Seaboard Oil Company) and were previously used in Bermüdez | ds sueqejoan "46 хә | y TE (Жо рио eo) sisusfanqsyp! Y рех (ssnay) вішиоуәр gsiasoysA201q Plog о;о/о рәрізәц/оѕѕігәд "ds puiosionjjed (Plog) оә/цио оәрізәио:од Plog opidsi 'а "о “ds papyaysAr040g g ‘ds siudA>oJog Plog oejuyuo (unjn3iu4020x0]) оузиозохој Li pios сюуооцоз (oj ‚бе. 1 (Plog) tuosuayda¡s :гриаАоишен (рјод) sisuagn> sısuagn> $әри&Хэлшәң род s! иро! нәр!ға/әтшән "ds panaeq! n3 “ds pja4ou A) Арола oyad '5 ‘yo ‘ds ојјелошко (Plog) /әмоу оергиошугпо Plog 5/зиәуомош '5 “yo “ds ојјелцод ‘dds огр.лод Plog 24/42/06 ојшту N 218 ~ Laguana Bayaguana Anguilla Formation о Ojo nh о о ч early Miocene Oligocene Table 5 25 Radimella confragosa zone (N 17-21) "ds siuaqajoysay "ds си ‘onp siseqajojsoy “ds "u 'рејуцио sijeqejojsex Plog оүпбиош; saqajn Plog Psoynysndugess үтәр 4 ¢ змефејку2олј "ds ‘u “ороло оәш!роу (врломрз) озобошиоз ојјештро (ung) гәмоц aay opono Plog огоблаАц>ола әләңХэоәроп) "ds вирипа (5рјә! puo ¡¡9A10)) sisusunjo6 сиошпа Plog osojndna»s риошпа Plog ood $уәләщХэобАләд "46 хә глеша: dopnasg "ds си поло фоуиозовјола 6 Ең plog /әмоу ¿sio оол (ssnay) siuuojp gsiaseypAr01q ров sisueqoup» оәрімәц;/оовзі/ә4 “ds ошоји опјјед! $р|ә!3 рио |јаћлођ Jamoy ошо;ѕ!әпјјәд "ds си “1 домол әләу/оірәд (ров) оә(цио оәрізәиолод "ds си 'одо AHD] "ds ошојвохоролра "ds оәрімәуіоо:од у “ds рершециоолод Plog ddou»s; papiiequopaog «ds си 'оарошојо2 оәрмәуіАэолод (sajssog рио uui) гиоублол ошиоцо) 19429 | 904095 вәнрпо>оәһ/ "ds си "pjjeKesunw “ds ошма/оолооуу Plog s! 7 (оч 2d) DY 7 Plog osobn (шпјпоило2охој) оцзиозохој (Арола) 14eqosy (шпјпоилозохој) оузиозохој ау Jal 7 Р (шло 1) Plog oejuup (шпјазилозохот) bipuo»oxo] Plog o/ojpourds (oq. 1) оң 7 Plog pun. (оц>ио>охо1) pu»uo»oxo1 Plog оро; (pq2uo»oxo]) оузиозохој рев ВРБА ФИНО Plog oxijo4d ayy РІР И вара үү" (мот омон) sisueBunqspia siereuAosoBn[ (pog) (ddou»s; зәниошләң (ung) pyoosquusoy зеџиошлен ноәАд рио әмоң DuDJJDy одолео (р|о8) оиоэшшор DHIYA "ds оуәләң; A) y "ds ојјелоцио мә!бблу ообүпл 72 “yo “ds pjJeeui A) розӣ гуоџшев “2 “yo “ds ојјелоцко роза Duyaınd > “yo "ds ојјелоцио унео Dypyn>yuapısod ојјелоцко зәурішо олорира “2 “yo “ds pasalo Plog оиоэшшор ојјелешко (зәҷэшүү) sisueo[noBo»sod siepiad/ чозшләт хејпаујед 04505 (Plog) охо;ѕооуѕәбиоә bquinbo Plog 4e»os sejjpno Plog sısuaadıu зеџрпођ "ds си ‘1494196 pJjequo (Аро:в) uoApıp '26 хә oAajposg 09] рио омон /Јјәзѕли `8 o “ds әлә А 208 (pog) ожобиојао о;ојгадорлод "ds орлов (Plog) ожорипаолоош pyuny Plog 24/42/06 ошту (uosuaydays) о/орбХшо олту "ds огогојиблу aDE II Radimella ovata subzone (N 17-18) I Cyprideis pascagoulaensis zone (N 13-17) Radimella confragosa zone (N 17-21) p | "ds си /осіѕәл pi»eoj[iDay. TU 1227А || H 15101 H 15102 NMB 17196 NMB 17319 NMB 17318 Río Yaque del Norte section Santiago Emily and Harold Vokes of Tulane University, New Orleans, LA, The relation to U. S. Geological Survey localities is indicated. ? Table 4. —Distribution of Ostracoda in samples from the Río Ya- que del Norte section. The Arroyo López section in this table and in the text reaches from just upstream of the confluence of the Arroyo López and the Río Yaque del Norte (Saunders, Jung, and Biju-Duval, 1986, text-fig. 26) to the upstream portion of the Angostura Gorge (Saunders, Jung, and Biju-Duval, 1986, text-fig. 27), a thickness of about 200 m. ? — specimens cannot be identified with certainty. (1949) and Bold (1968). Samples with prefix TU were collected by occurrence of the species at this locality is questioned. TU 1447 TU 1446 TU 1445 NMB 17317 Arroyo López Table 5.— Comparison of ostracode faunas from the Laguana and Bayaguana amber sites with the fauna of the Anguilla Formation (Lesser Antilles) and with the known stratigraphic range of the species. Arrows indicate that the range of the species extends beyond the interval shown. ? — range of the indicated species, compared to the planktonic foraminiferal zonation, is uncertain. III ЦІ I Procythereis deformis zone (N 6-16) 71 Auila amygdala subzone (N 7-10) ? | ] Pokornyella laresensis zone (N 1-5) TU 1443 NMB 17190 NMB 17189 NMB 17186 López H 15117 Ваноа ММВ 17193 Table 4 The Paleontological Research Institution acknowledges with special thanks the contributions of the following individuals and institutions PATRONS (81000 or more at the discretion of the contributor) JAMES E. ALLEN (1967) ROBERT C. НОЕЕТЕ (1974-1977) AMERICAN OIL CoMPANY (1976) RICHARD I. JOHNSON (1967, 1986) ATLANTIC RICHFIELD CoMPANY (1978) J. M. McDONALD FOUNDATION (1972, 1978) CHRISTINA L. Ватк (1970, 1982, 1983) Мовп. Оп. CORPORATION (1977 то DATE) Hans M. Boru (1984) SAMUEL T. PEEs (1981) RurH G. BRowNE (1986) RICHARD E. PETIT (1983) MR. & Mns. KENNETH E. CASTER (1967) ROBERT A. PoHowskY (1982) CHEVRON Orr CoMPANY (1978, 1982) ТЕХАСО, Inc. (1978, 1982, 1987) Еххом СОМРАМУ (1977 TO DATE) UNION Оп, OF CALIFORNIA (1982 то DATE) Lois S. FOGELSANGER (1966) UNITED SrATES STEEL FOUNDATION (1976) GULF OIL CORPORATION (1978) CHARLES G. VENTRESS (1983 TO DATE) MERRILL W. Haas (1975) CHRISTINE C. WAKELEY (1976-1984) NORMAN E. WEISBORD (1983) INDUSTRIAL SUBSCRIBERS (1988) ($300 per annum) ExxoN PRODUCTION RESEARCH COMPANY MOBIL EXPLORATION AND PRODUCING SERVICES SHELL DEVELOPMENT COMPANY (continued overleaf) R. TUCKER ABBOTT JAMES E. ALLEN ELIZABETH А. BALCELLS-BALDWIN CHRISTINA L. BALK BRUCE M. BELL ROBERT A. BLACK Hans BOLLI Davip Јонм BOTTJER RUTH G. BROWNE J. Бауір BUKRY LYLE D. CAMPBELL JOHN L. CARTER ANNELIESE S. CASTER KENNETH E. CASTER Јонм E. DUPONT ARTHUR N. DUSENBURY, JR. R. H. FLOWER Lors S. FOGELSANGER A. EUGENE FRITSCHE ERNEST H. GILMOUR MERRILL W. HAAS ANITA G. HARRIS STEVEN M. HERRICK ROBERT C. HoERLE F. D. HOLLAND, JR. RICHARD I. JOHNSON Davip B. JONES PETER JUNG DAVID GARRETT KERR Сесп, Н. KINDLE Mary E. KINDLE WILLIAM Е. KLOSE, II LIFE MEMBERS ($200) Jiri Kriz THORWALD KRUCKOW RALPH L. LANGENHEIM, JR. HARRY A. LEFFINGWELL EGBERT G. LEIGH, JR. GERARD A. LENHARD ТОШЕ N. MARINCOVICH DoNALD R. MooRE SAKAE O'HARA SAMUEL T. PEES RICHARD E. PETIT RoBERT А. POHOWSKY JOHN POJETA, JR. Јонм K. РОРЕ ANTHONY RESO ARTHUR W. ROCKER WALTER E. SAGE, III Јонм B. SAUNDERS JUDITH SCHIEBOUT MIRIAM W. SCHRINER EDWARD S. SLAGLE Davip Н. STANSBERY CHARLES G. VENTRESS EMILY H. VOKES HAROLD E. VOKES CHRISTINE C. WAKELEY THOMAS R. WALLER NORMAN E. WEISBORD RALPH H. WILLOUGHBY ARMOUR C. WINSLOW VICTOR А. ZULLO Membership dues, subscriptions, and contributions are all important sources of funding, and allow the Paleontological Research Institution to continue its existing programs and services. The P.R.I. publishes two series of respected paleontological monographs, Bulletins of American Paleontology and Palaeontographica Americana, that give authors a relatively inexpensive outlet for the publication of significant longer manuscripts. In addition, it reprints rare but important older works from the pa- leontological literature. The P.R.I. headquarters in Ithaca, New York, houses a collection of inver- tebrate type and figured specimens, among the five largest in North America; an extensive collection of well-documented and curated fossil specimens that can form the basis for significant future pa- leontologic research; and a comprehensive paleontological research library. The P.R.I. wants to grow, so that it can make additional services available to professional paleontologists, and maintain its position as a leader in providing Resources for Paleontologic Research. The Paleontological Research Institution is a non-profit, non-private corporation, and all contri- butions are U.S. income tax deductible. For more information on P.R.I. programs, memberships, or subscriptions to P.R.I. publications, call or write: Peter R. Hoover Director Paleontological Research Institution 1259 Trumansburg Road Ithaca, New York 14850 U.S.A. 607-273-6623 VOLUME 94, NUMBER 329 JANUARY 7, 1988 Neogene Paleontology in the northern Dominican Republic 7. Тће Subclass Ostracoda (Arthropoda: Crustacea) by W. A. van den Bold Paleontological Research Institution | 1259 Trumansburg Road | Ithaca, New York, 14850 U.S.A. Library of Congress Card Number: 85-63715 NOTE The type and figured specimens illustrating the majority of fossil groups described from the Dominican Republic Project will be deposited at the Naturhistorisches Museum Basel (Basel, SWITZERLAND). In the case of the Ostracoda, however, a large proportion of type material from the Caribbean area has for many years been deposited in the H. V. Howe collection at Louisiana State University (Baton Rouge, LA, U.S.A.). For this reason, all figured specimens from this paper, including the holotypes and figured paratypes will be deposited in the H. V. Howe collection at Baton Rouge. Unfigured paratypes of new species will be deposited in the Naturhistorisches Museum Basel collections, together with a complete set of ostracodes used in the study, as identified by the author. Printed in the United States of America ! Allen Press, Inc. Lawrence, KS 66044 U.S.A. CONTENTS БЕШТАУ op ne E E A Л гат E C UE M Ыл 5 Family Cytherideidae Ја би NE EUNT EU DI T I 5 Sublammly-@yiherideidinaer 2... e eere 24 DS wee a en) 3 УПОЛА АУДИО анонимне 25 ЖОК УЕН A eeu Mere 22 7 6 Subfamily Neocytherideidinae .............. 28 Biostratigraphy Family Cytheridae Río Gurabo and Río Cana sections .................... 7 Subfamily Perissocytherideinae ............. 28 RIOMAO SECO Mee era ИОТ 11 Subfamily Ресгосушенпае 30 Rio Yague del Norte Section пала dad ee 11 Subfamily Суетотогрћтав............... 31 Ра ОООО о dd RER 12 Family Trachyleberididae RIO CALAS цоны uot LS ЫГЫ д 12 Subfamily Hemicythermac о о. sd 31 ТОТА УСО ыл Уууу к л A о [5 Subfamily Thaerocytherinae ................ 37 ROMAO S COE Кулы UE куску лз EE e S 14 Subiamly осона... 38 Rio Yague del NOME SOCOM ee 14 Subfamily Trachyleberidmae................ 38 Correlation between Río Cana and Río Gurabo sections ... 15 Subfamily Brachycytherinae ................ 43 (ОПЕТ LS) Subfamily Campylocytherinae .............. 44 Systematic Paleontology Ба Уба ево das 2.2222. 46 ШИ КОШИП Пра A н UU Med MET alae 16 Ramlvaboxoconohidae ss conc. os 2... 47 Systematics Family Cytheruridae | Order Podocopida Subfanuly:Gytherummnac 22222... 54 Suborder BIatycOopIDAS ess wi eine re dur С 17 Subfamuly, @ytheroptennae 22222222... 59 Suborder Podocopina Subfamily Paracytherideinae................ 62 Superfamily Cypridacea Subfamily Pedicvihekitiaes 2,22. 2 63 Јао у BONOS pda 2.2... 19 EarnavaBythocytheniddes casa 64 Family Бата о аав ови иа амы a: 2l Бату Paradoxostomidaee 2222222 65 Family Macrocyprdidae al aces won 21 BanmulysXestoleberididde su os 67 Superfamily Bairdiacea Reéferencesieileda за жаса de Mech авва d crm S P EE 70 i Family Balrdiidac eira che Sa ame ea, 22 Plate a ode сана а ЕП is nee Mace аса Ae 78 Superfamily Cytheracea Index аса ви avos teilte. ЗРЕЛЕ A ШЫ 91 LIST OF ILLUSTRATIONS Text-figure Page 1. Location of sections on the south flank of the Cibao Valley, northern Dominican КериЬїс................................. 6 2. Osracode zomon of не Post-Focene part of the Caribbean Сепо rn ede eme к err ee 8 3. Location map of the Caribbean, indicating the present study area, the areas where the Radimella event has been recognized, and the locatıon ot the Бардапа anda aeuatia amber: SIS. la edicere en rn am аи apti қон e eL Жа 9 4. Distribution of Radimella confragosa (Edwards), Cyprideis pascagoulaensis (Mincher), and Cyprideis salebrosa Bold in the Upper Wiocome amo Altes areas ЕЕ СТЕВО VoU MIS EODD Окер qM IU M E ч 10 5 Comelaiion between me Rio Сапа and. Rio Gurabo Sections. oux eee а отав: 11 6. Distribution of greatest length of specimens of Krithe dolichodeira in NMB samples from the Rio Gurabo section ............ 26 Ту ШИСИ о, ШО КОЛО ЛИ IET JOB сы кала ж, RA ecc Pos cU uM UTE 22) 8. Interior of right valve of Pseudopsammocythere ex gr. vicksburgensis (Howe and Гам)..................................... 27 9. Мово sems илаһа ено ырай „Быт а owe and баклан uad Teese ueris A dato adc Toe een a ac 43 10. Schematic dorsal view of the hinge of Acuticythereis Edwards, Campylocythere Edwards, Proteoconcha Plusquellec and Sandberg, aua HR eem ctio P wer о ақа. EUREN NN 45 11. Distribution of Loxoconcha (Touroconcha) Ishizaki and Gunther in the Caribbean and the Pacific coast of Central America ... 51 ПОЕ ОИС УЯТКО ООЛ Л CHE CIV ар récolte ete e ҚАЛТ Ат ‚су; 52 ¡So Oh Valse ӨК ЛШ ОС КОЛИ Spu ОА. Me Ded S ТААТ, d rie На О ТАО 52 ЈАНО ВО БАРЕ И Би Он cie LCN Ж ‚н sen Бре in des DSL e cmm ом nc TAIN UNO Cost o POI HERD e Penn telae алата opes 53 ШЭ TOO EE vale O POIDS КО Г Du a. enr) ы иек ел И Be джуу ее Ban л Жур эзер Nan inue AP D cutee SA UR 53 LIST OF TABLES Table | Page I. Distribution of Ostracoda m ВАСЕ trom the RIO Сайа Section И ec. e 700225504... foldout inside front cover 2. Distibution of Ostracoda m sariples momi the RIO QUIADO: SECO ir nen een foldout inside back cover 3. Эш тон of Ostracoda m samples trom the Kio Mao section е. foldout inside front cover 4. Distribution of Ostracoda in samples from the Río Yaque del Norte section ............................ foldout inside front cover 5. Comparison of ostracode faunas from the Laguana and Bayaguana amber sites with the fauna of the Anguilla Formation (Lesser Antilles) and with the known stratigraphic range of the species ....................... foldout inside front cover NEOGENE PALEONTOLOGY IN THE NORTHERN DOMINICAN REPUBLIC 7. The Subclass Ostracoda (Arthropoda: Crustacea) By W. А. VAN DEN BOLD Department of Geology Louisiana State University Baton Rouge, LA 70803, U.S.A. ABSTRACT One hundred and forty-five species are reported from the Cercado, Gurabo and Mao formations of the Río Gurabo, and Rio Cana sections on the south flank of the Cibao Valley, northern Dominican Republic. Twenty-one species are new: Argilloecia vespa, Bythoceratina monoceros, Caribella geisteri, Cytheropteron (Aversovalva) bijuduvali, Cytheropteron (Cytheropteron) do- minicanum, Cytheropteron (Cytheropteron) guraboense, Echinocythereis madremaestrae, Eucytherura fithianae, Munseyella jungi, Munseyella saundersi, Paracytheridea calcitrapa, Parakrithe alta, Pedicythere variabilis, Phlyctocythere curva, Phlyctocythere recta, Phlyctocythere stricta, Proteoconcha? evai, Pterygocythereis llinasi, Radimella ovata, Xestoleberis antillea and Xestoleberis duo. The uppermost Cercado Formation and the Gurabo and Mao formations belong to the Radimella confragosa Zone (upper Miocene-Pliocene). Below the Cercado Formation the lower part of this zone coincides with the upper part of the brackish-water Cyprideis pascagoulaensis Zone (middle to upper Miocene). The two sections show increasing depth of deposition with decreasing age, the Río Cana section remaining considerably shallower than the Río Gurabo section. Beds, equivalent to the Gurabo Formation in the Río Yaque del Norte section near Santiago were deposited at greater depth than those of the Río Mao, Río Gurabo and Río Cana sections farther west. Underlying beds in the Río Yaque section (Arroyo López) carry a fauna similar to that of the upper Cercado Formation. The lower part of the Río Yaque section (López and Baitoa) has a fauna that is similar to that of the amber sites on the south flank of the Cordillera Central and to that of the Anguilla Formation of the Lesser Antilles, which are believed to be of similar age (close to the early-middle Miocene boundary). RESUMEN Ciento cuarenta y cinco especies son citadas de las formaciones Cercado, Gurabo y Mao en las secciones de los Rios Gurabo y Cana al pendiente Sur del Valle de Cibao, Repüblica Dominicana septentrional. Veinte y una especies son nuevas: Argilloecia vespa, Bythoceratina monoceros, Caribella geisteri, Cytheropteron (Aversovalva) bijuduvali, Cytheropteron (Cytheropteron) do- minicanum, Cytheropteron (Cytheropteron) guraboense, Echinocythereis madremaestrae, Eucytherura fithianae, Munseyella jungi, Munseyella saundersi, Paracytheridea calcitrapa, Parakrithe alta, Pedicythere variabilis, Phlyctocythere curva, Phlyctocythere recta, Phlyctocythere stricta, Proteoconcha? evai, Pterygocythereis llinasi, Radimella ovata, Xestoleberis antillea y Xestoleberis duo. La parte superior de la formación Cercado y las formaciones Gurabo y Mao pertenecen a la zona de Radimella confragosa (Mioceno superior y Plioceno). Dentro de la formación Cercado la parte inferior de esta zona coincide con la parte superior de la zona de Cyprideis pascagoulaensis (Mioceno medio-superior) de la zonación del ambiente agua salobre. Ambas secciones muestran una aumentación de profundidad de deposición en estratos más jovenes, la sección del Río Cana quedando siempre menos profundo que la sección del Río Gurabo. Lechos de la sección Río Yaque del Norte cerca de Santiago, contemporaneos con la formación Gurabo, fueron depositados en profundidades mayores que en las secciones de los Ríos Mao, Gurabo y Cana, que estan mas al oeste. Estratos debajo de las mencionados arriba en la sección del Río Yaque del Norte (Arroyo López) tienen una fauna comparable con la fauna de la formación Cercado. La porción inferior de la sección del Río Yaque del Norte tiene una fauna comparable con las faunas de los sitios de ámbar en el pendiente sur de la Cordillera Central y con estas de la formación Anguilla de las Antillas Menores, cuales son probablemente de una edad similar, cerca del limite Mioceno inferior-medio. samples had been processed in Switzerland, I went to INTRODUCTION In January, 1978 and March, 1979, the author joined the Natural History Museum [Basel, Switzerland] ex- pedition to the Cibao Valley, Dominican Republic. While other members of the expedition collected sam- ples for macrofossils (Peter Jung, Tony Eva and Jórn Geister), or described the lithology (Bernard Biju-Du- val), or measured sections and plotted sample locations (Christian Meynot and Albert Chartier), John Saun- ders and I collected samples for microfossils. After the Basel in the summer of 1980 to collect the ostracodes from the washed residues. As there was only limited time it was impossible to study all samples in detail. Therefore, I briefly examined all samples, and picked the ostracodes from the more promising ones. The picked material was studied in Baton Rouge. Addi- tional material from areas that were not visited by the author were sent later by John Saunders. Supplemen- tary material was received from Emily Vokes, Tulane University, New Orleans, LA. 6 BULLETIN 329 Prior to 1968, nothing was known about ostracodes in the Dominican Republic, apart from a few scattered remarks (e.g., Bold, 1966a, p. 7). Although the first detailed study (Bold, 1968) represented a big step for- ward, it unfortunately also contained some misinfor- mation, caused mainly by too much reliance on re- ported ages, correlations and thicknesses of the formations. This led to an overestimation of the age of the Cercado Formation, and the assumption of an unconformable relationship between the Cercado and Gurabo formations. Furthermore, sample coverage was inadequate, which resulted in a partly erroneous dis- tribution pattern. At that time (1968), I had only three samples in the Río Cana (now 21) and 10 in the Río Gurabo (now 49); only 22 species were reported from the Río Cana section (now 88) and 44 from the Río Gurabo section (now 140). In some cases (e.g., Tables 3 and 4) the “old” samples have been used in the present study. They have the prefix “Н” as cited in Bermüdez (1949, pp. 37-46): this prefix was dropped when the samples were later cited by Bold (1968, pp. 11-18). The new material from the Río Cana and Río Gu- rabo sections (Text-fig. 1, sects. 1, 2) consists of more than 5000 specimens; the 145 species are treated sys- tematically and the majority are illustrated. Their dis- tribution is shown on Tables 1 and 2. As only one sample was studied from Bluff 1 of Maury (1917) on the Río Mao, previously-collected material (Domini- can Seaboard, see Bold, 1968, pp. 10-18) was restud- ied, and one sample collected by Harold and Emily Vokes (loc. TU 1292) was added to give some idea of ostracode distribution in this section (Text-fig. 1, sect. 3; Table 3). Species found in the Río Yaque del Norte section (Text-fig. 1, sects. 6, 7) are reported in Table 4. Species occurring only in the Río Yaque section (López and Baitoa) are included in the systematics sec- tion, as are those reported from the Laguana and Baya- guana amber sites, but are not figured. These species have been described previously from the Madame Joie and Thomonde formations in Haiti (Bold, 1981) or from the Anguilla Formation in the Lesser Antilles (Bold, 1970b). For the position of the samples men- tioned and for lithological descriptions the reader is referred to Saunders, Jung, and Biju-Duval (1986). However, the stratigraphic position of locations of the samples in the Río Cana and Río Gurabo has been plotted in Text-figure 5, and the same stratigraphic sequence of samples has been used in the distribution charts (Tables 1 and 2). ACKNOWLEDGMENTS Peter Jung and John Saunders invited me to join their expedition to the Cibao Valley, paid my field expenses and were, with the other members of the expedition, part of a very memorable experience. Moreover, they were gracious hosts during my stay at the Museum of Natural History in Basel. Emily and ES 10 20km 1 Rio Cana 2 Rio Gurabo Rio M GUAYUBIN С] B (| Upper Cenozoic 1 en A О (5: Oligocene - Early Miocene 2 5 Сапада Zalaya 3 V i 6 Rio Yaque del Norte 3 4 Mesozoic 7 City of Santiago Ф 4% 4 4 8 Arroyo Рипа! 5 3 3) E ү 9 Rio Verde 9 % 25 1 Ф VALVERDE ESPERANZA NAVARRETE ZAMBA 2 MAO Leo D Y “a: eet ee 4 N LOSQUEMADOS & И SANTIAGO 7 > 2 T RODRIGUEZ С 4 7 A N SANTIAGO BULLA MOCA 5 6 8 dade қатал CBAITOA «ЗСО асады Text-figure 1.— Location of sections on the south flank of the Cibao Valley, northern Dominican Republic (from Saunders, Jung, and Biju- Duval, 1986, text-fig. 3). Sections 4, 5, 8 and 9 are not treated in this report. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 7 Harold Vokes kindly donated sample material that they collected in the same general area. Tom Cronin (United States Geological Survey, Res- ton, VÀ) and Paul Steineck (State University of New York at Purchase, NY) reviewed the manuscript, which has benefited considerably from their comments. Woodson Godfrey (Shell Development Company, New Orleans, LA) and Ezat Heydari (Department of Geology, Louisiana State University, Baton Rouge, LA) prepared the electron micrographs and Dan Peace (de- partmental photographer, Department of Geology, Louisiana State University, Baton Rouge, LA) did the printing. The secretarial staff of the LSU Department of Geology typed the final manuscript. BIOSTRATIGRAPHY Rio GURABO AND RÍO CANA SECTIONS (Text-fig. 1 [sects. 1, 2, 3]; Tables 1, 2) The biostratigraphic zonation of the Caribbean post- Eocene, based on Ostracoda (Bold, 1983), is slightly emended in Text-figure 2 by the addition of the Ra- dimella ovata Taxon Range Zone, and the substitution of Pokornyella poagi, as a new name for Pokornyella saginata (Stephenson) sensu Poag, 1974 (p. 59, pl. 6, figs. 6-8; not Hemicythere saginata Stephenson, 1944, p. 158, pl. 28, figs. 16, 17) in the Pokornyella “sagi- nata" / Pokornyella laresensis Taxon Range Zone of Bold (1983). The Cercado Formation lies within the Cyprideis pascagoulaensis Taxon Range Zone of the Caribbean brackish water zonation (Bold, 1976), middle to late Miocene (planktonic foraminiferal zones N 13-17 of Blow, 1969). The upper part ofthis zone overlaps with the Radimella confragosa Partial Range Zone (Bold, 1983), now recognized as oflate Miocene and Pliocene age (N 17-21), which zone occurs in the upper part of the Cercado Formation and the Gurabo and Mao for- mations. The first occurrence of Radimella Pokorny, 1969, called the Radimella event (Bold, 1983), occurs in the Rio Cana section (see Table 1 and Text-fig. 4) at 165 m above the base of the Cercado Formation and in the Rio Gurabo section at 175 m above the base. This event has been recognized throughout the Caribbean (Text-fig. 3), from Central America through South America and the Greater Antilles to eastern North America as summarized below: In Costa Rica, the Radimella event has been rec- ognized in the lower part ofthe Rio Banano Formation (Limön Basin), about 300 m above the top ofthe Us- cari Formation (N 17), where first shallowing of the environment takes place (Bold, 1978b, table 9). Ra- dimella ovata, n. sp., was found in the upper part of the Venado Formation (Sen Gupta, Malavassi, and Malavassı, 1986, p. 219). In Colombia, this event occurs in the Lower Mag- dalena River valley, in the lower part of the Tubarä Formation (Bold, 1966e), and also at the base of the Chorrera Formation. In Venezuela, the Radimella event has been recog- nized in three areas: in the lower part of the Punta Gavilan Formation in Falcön (Bold, 1973b), where it corresponds to N 17, Globorotalia dutertrei s. 1. Zone (see Bolli, 1970, fig. 21). Bold (1972a) recognized the event in the El Veral Formation in Falcón, where it also corresponds to N 17 (Blow, 1969). In the Araya peninsula in the State of Sucre, it occurs near the base of the Cerro Verde Member of the Cubagua Forma- tion = Globorotalia dutertrei s. 1. Zone (Bolli, 1970, fig. 22); In Trinidad, the earliest Radimella is found in the Sabaneta glauconitic clay member of the Springvale Formation (Bold, 1963b), questionably corresponding to N 18 and also in the Biche coreholes (?N 17). This is below the latest occurrence of Cyprideis pascagou- laensis (Mincher, 1941). In Puerto Rico, the base of the Radimella confragosa Zone is found in the lower part of the Ponce Formation (Bold, 1969), and in the Lajas beds (Bold, 1975d). Here also the Cyprideis pascagoulaensis Zone overlaps with the Radimella confragosa Zone. In Jamaica, the Radimella event has been recognized within the Lower Coastal Group (Bold, 1971b), within N 17, and just below the occurrence of Globorotalia margaritae Bolli and Bermúdez, 1965 (N 18) [see Text- fig. 3], both in the Buff Bay and San San Bay sections. In the Dominican Republic, in the Azua Basin, Ra- dimella occurs near the top of the Fondo Negro section (Mascle et al., 1980, p. 108, stop 3), with Cyprideis pascagoulaensis in juxtaposition. The relationship with the planktonic-foraminiferal zonation is being studied. Similar occurrences have been found in the Arroyo Molinillo and in well El Mogote #1 (Bold, 1983). In the Enriquillo Basin, scattered occurrences of Radi- mella are found in the Las Salinas Formation; therefore no true stratigraphic level for the base of the genus can be recognized here (Bold, 1975a). However the earliest Radimella occurs below the last Cyprideis pascagou- laensis (Text-fig. 4). In Maury’s Bluff 1 (Cibao Valley, Río Mao section), Radimella has been found within calcareous nannofossil zone NN 11, late Miocene (Saunders, written commun., 1985). In Haiti, in the Cul-de-Sac Basin, Radimella occurs in the uppermost Rivière Grise Formation (Bold, 1975a). The last C. pascagoulaensis has been found in the directly-overlying Morne Delmas Formation (Text- fig. 4). In the St. Marc area the Radimella event has been recognized in the uppermost “Thomonde” For- mation (Bold, 1981), close to N 17-18 contact (Text- fig. 4). BULLETIN 329 Zones of planktonic foraminifera Shallow marine Ostracode zone Brackish water Cyprideis salebrosa Cyprideis Radimella ovata subquadraregularis Cyprideis pascagoulaensis C. subquadraregularis Cyprideis pascagoulaensis Hermanites hutchisoni Aurila amygdala Pleistocene 22/23 Gr. truncatulinoides Radimella wantlandi 20/21 u... SRM 77777775 Gr. miocenica ; 19 Pliocene Radimella confragosa Gr. margaritae 18 Gr. humerosa Coquimba congestocostata Late | 16/17 Gr. acostaensis 5 Gr. menardii 4 Gr. mayeri Е Gr. robusta / Gs. ruber Middle 1 v r. lobata Procythereis? deformis Gr. fohsi 9 Gr. peripheroronda Miocene 8 Po. glomerosa 7 Ga. insueta 6 C. stainforthi 5 C. dissimilis Early 4 Gs. primordius Pokornyella poagi Gr. kugleri iens P. laresensis 3 G. ciperoensis 2 Gr. opima Oligocene 1 G. ampliapertura 18/19 Ca. chipolensis / Ps. micra Triebelina crumena Hermanites tschoppi Cyprideis aff. ovata C. pascagoulaensis Cyprideis aff. ovata. Triebelina howei Lococoncha (Loxocorniculum) lienenklausi І 1 million years E DOMINICAN REPUBLIC NEOGENE. 7: BOLD 9 Text-figure 2. — Ostracode zonation of the post-Eocene part of the Caribbean Cenozoic (emended from Bold, 1983, fig. 6). Note that the base of the Radimella confragosa PRZ is placed in the upper part of the upper Miocene, and that the new Radimella ovata TRZ extends from the first occurrence of Radimella to within the lower part of the Pliocene. Description and discussion of the other zones, and the ranges of the more important species can be found in Bold (1983, pp. 407-411, text-figs. 1-4, 7). TRZ = Taxon Range Zone, observed stratigraphic range of the species in question. PRZ = Partial Range Zone, that part of the range of the nominate species that is characterized by co-occurrence of other taxa (Assemblage Zone) or by the absence of certain other taxa (Interval Zone). They are cor- related, where possible, with planktonic foraminiferal zones. The latter are indicated by N (1-23) or P (18/19) numbers of Blow, 1969, and by the species name of the zones of Bolli and Saunders (1985). Planktonic foraminiferal generic names are abbreviated as follows: C. = Catapsydrax; Ca. = Cassigerinella, G. = Globigerina; Ga. = Globigerinatella; Gr. = Globorotalia, Gs. = Globigerinoides; Pa. = Praeorbulina; Ps. = Pseudohastigerina. In Cuba, in Matanzas Province, the earliest Radi- mella occurs in the Capas de Gypsina (Bold, 1975c). In eastern North America, Radimella confragosa (Edwards, 1944), has been reported in the Есрћога biofacies of the Choctawhatchee Stage in Florida (Puri, 1954) and the upper part of the Yorktown Formation of North Carolina and Virginia (Hazel, 1977). The species was originally described from the Duplin marl of North Carolina (Edwards, 1944). The accumulated evidence places the Radimella event within zone N 17 ofthe planktonic-foraminiferal zonation and within zone NN 11 of the nannofossil zonation (— late Miocene). It appears that the final extinction of C. pascagoulaenis takes place at or just below the Mio-Pliocene boundary. Another species of Radimella (Radimella ovata, n. sp.) appears to be of greater regional importance than originally thought. = T V 5 T \ гере е = | : ЫЫ e 60 | ep И a | j | 2j p ) | : (oH A ТЕЗ B | Sa | E ee se сл | NEE. 4 d | | \ S m ~ Ё х COT a \ j \ O Area of present study = | 7 | ) (Text-fig. 1) : y {эл | wi x Area where the Radimella event [30 = ) d N has been recognized 7 E > o Amber sites А 2 eI s д Re 7 Ў : NY AN, Matanzas ~ è P Er N © - y I-20" % Morne Beguin а d x “ x ( Falcón Aráya Lower >; Magdalena 2 D ғ ass 3 N. пре Ny / ~ Miles i oa 0 200 400 600 ; u Геза L | j ( З Т Т > N 0 400 800 2 Kilometers = 2 | | 22 ЈА 2299 Buff Bay Ly Gom 5 X Ауа EX? d Cul-de-Sác Enriquillo Ponce “, • 2 Cubagua Trinidad Text-figure 3.— Location map of the Caribbean, indicating the present study area, the areas where the Radimella event has been recognized, and the location of the Laguana and Bayaguana amber sites. This species disappears in the Río Gurabo section at about the Mio-Pliocene boundary (level 400 m), and in the Río Cana section at 380 m (Text-fig. 5), in the part of the section questionably identified as calcareous nannozone NN 12, about 50 m below the base of nan- nozones NN 13-14 (Saunders, Jung, and Biju-Duval, 1986). It seems possible that its disappearance in the Río Gurabo section may occur before the extinction of the species and may be caused by deepening of the environment. Also Radimella confragosa and R. con- fragosa form A of Bold, 1975b, become scarce above the 400 m level. Coquimba congestocostata (Bold, 1963b) disappears in the Río Cana section before the disappearance of R. ovata, but in the Río Gurabo sec- tion it persists for a short distance above this level of disappearance. The disappearance of Radimella ovata was previously noted in Costa Rica in the lower part of the Río Banano Formation, in Venezuela at the top of the Cerro Macho Member of the Cubagua Forma- tion (N 18), and in Trinidad 1n the Sabaneta glauconitic clay member of the Springvale Formation (Bold, 1975b). Therefore the total range of this species ap- pears to be from within N 17 to within N 18. Bold (1975a, p. 181) suggested that the occurrence of Uroleberis torquata Bold, 1968, might be of strati- BULLETIN 329 graphic significance in the Greater Antilles. In the Do- minican Republic this species has been found in the Mao Formation of the Río Gurabo section (level 710 m), and equivalent beds on the old Santiago-Puerto Plata road (Bold, 1968, text-fig. 6, table 11); also in the Jimani Formation of the Enriquillo Basin (Bold, 1975a, table 4, text-fig. 7). In Haiti the species occurs at the top of the Morne Beguin section (Bold, 1981, pp. 56, 107) and in Cuba in the La Cruz Formation near Santiago de Cuba (Bold, 1975c, table 4, text-fig. 4). The first occurrence of this species lies well above the extinction levels of Cyprideis pascagoulaensis and Radimella ovata, but below the level of appearance of Cyprideis salebrosa Bold, 1963b (late Pliocene). In the Pleistocene of the Matanzas For- mation in Cuba and the Navy Island and Manchioneal formations in Jamaica it is replaced by what appears to be its immediate descendant, Uroleberis angulata (Brady, 18702), which species is living on the Bahamas platform and among reefs off the coast of Nicaragua. U. torquata Bold, 1968 1s probably indicative of late Pliocene (to possibly earliest Pleistocene) age; however, it has not been possible to tie its presence to the stan- dard planktonic-foraminiferal zonation, because it, like U. angulata, appears to be restricted to shallow water, CUBA JAMAICA HAITI DOMINICAN REPUBLIC PUERTO RICO N St. Marc Cul-de-Sac Enriquillo Cibao SS Santiago “Las la Cruz Cahobas” Morne Delmas | — = о о БЕ Las 1 Salinas Lajas Gurabo beds |ы.» = aw «жә еше «ме еше ез Buff Bay Riviere Grise “Thomonde” Radimella confragosa Radimella confragosa Cyprideis pascagoulaensis Cyprideis salebrosa Cyprideis salebrosa Radimella confragosa Radimella confragosa Cercado MÀ Angostura Cyprideis pascagoulaensis Cyprideis pascagoulaensis Cyprideis pascagoulaensis Cyprideis salebrosa Cyprideis pascagoulaensis Cyprideis salebrosa Cyprideis salebrosa Radimella confragosa Radimella confragosa Radimella confragosa Text-figure 4. — Distribution of Radimella confragosa (Edwards, 1944), Cyprideis pascagoulaensis (Mincher, 1941) and Cyprideis salebrosa Bold, 1963b in the upper Miocene and Pliocene of the Greater Antilles. No vertical scale is attempted as no direct correlation with planktonic foraminiferal zones is possible. The upper part of the section between the City of Santiago de Cuba and Loma Quintero was named the Santiago Formation by Franco, 1976 (type locality: loc. CU 30 of Bold, 1975c), and separated from the La Cruz Formation (Jakus, 1983, p. 77). The names of Thomonde and Las Cahobas formations have been used in the St. Marc area of Haiti, but are placed here in quotation marks as they represent younger strata than those in the type areas of these formations (Bold, 1981). Occurrence of Radimella is discontinuous in the Las Salinas Formation of the Enriquillo Basin, Dominican Republic (Bold, 1975а). The upper part of the Mao Formation was not studied. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 11 highly calcareous environments where planktonic fo- raminifera are scarce. Río МАО SECTION (Text-fig. 1 [sect. 3]; Table 3) As only one new sample was received from the Río Мао section (loc. ММВ 17175, Bluff 1 of Maury), old Rio Cana Section |- 17022 900 т Rio Gurabo Section 800 4 800 m = > о |- 16108 Fieiog 15106 |- 16097 16093 5 E > 700 4 |- 700 о [ 16090 18024 | E1503; 16030 |- 16039 a o o 600 4 v |- 600 + 16020 |- 17017 ur |- 15990 -17016 а = |- 15983 B A 15982 273 L15979 5004 d 22481 |- 500 3 Со a M To |17012 5 8922727 a. 71578 Ei SAA es N UR ж” уч 17008 > + N ae — S EC po ee [715933 15968 1700 = а mb? = -F15 400 4 Eee Capen” asaan |- 15958. 400 Su s es ULL а i 15937 Pa TT тор Rodimella Heras 1945 9 PAS 5 + 17006 „=“ al с Шы: |- 16132 > |- 16973 = L 16970 16135 o 300 + 16976 16141 + 300 16985 16137 16978 — | |- 16145 |- 16147 + 16148 — 69316995 17183 16156 EM 16158 200- |- 200 |- 16169 Lizo б Foto? 16171 m -16175-80 | 17004 Т 5) 16182-84 __| о HIER p > | F16188 17080 9 L 1004 o О | 100 j m brackish ж о + 16205 > о о Text-figure 5. — Correlation between the Río Cana and Río Gurabo sections on the basis of first occurrence (base) and last occurrences (top) of ostracode species (dashed lines) and formational boundaries (solid lines). The change in facies from brackish water to shallow marine is indicated by a zig-zag line. Dominican Seaboard material (Bold, 1968) was re- studied to get at least some idea of the ostracode dis- tribution and to enable some comparison with the oth- er sections (samples with prefix ^H"). Material from loc. TU 1292 was also examined. The result is strati- graphically not very significant (only 11 samples); how- ever, a few facts emerge: 1. The first occurrence of Radimella confragosa in Maury's Bluff 1 falls within nannofossil zone NN 11 (upper Miocene). 2. Radimella ovata persists until loc. USGS 8733 and does not occur higher in the section (compare this occurrence to its position in the Río Gurabo sec- tion). RíO YAQUE DEL NORTE SECTION (Text-fig. 1 [sects. 6, 7]; Table 4) Only eight samples from the Rio Yaque del Norte section contained ostracodes. Therefore they were combined with previously-collected samples (prefix “Н”) of the Dominican Seaboard Oil Company (Bold, 1968) and some (prefix ““TU”’) collected by Emily and Harold Vokes (Tulane University). It was in this sec- tion that a serious mistake was made by Bold (1968). Dominican Seaboard geologists mapped this area and their results were, in part, published by Bermüdez (1949). Bermüdez included their Baitoa Formation (lowermost part of the section) in the Cercado For- mation. Following this example Bold (1968) suggested a partly middle Miocene age for the Cercado Forma- tion. However, the Baitoa Formation contains Quadra- cythere brachypygaia Bold, 1965b, and Loxoconcha runa Bold, 1970b, and their combined range (N 3-6 and N 5-9 respectively) [Bold, 1983] suggests an early Miocene age (N 5-6). In a slide labeled “А. A. Olsson, Type Baitoa" (Paleontological Research Institution, Ithaca, NY) Procythereis? deformis (Reuss, 1850) and Cytheretta karlana Howe and Pyeatt in Howe et al., 1935, occur. The unconformably-overlying López section (see Saunders, Jung, and Biju-Duval, 1986, text-fig. 25) shows co-occurrence of Procythereis? deformis, Aurila galerita Bold, 1965b, Aurila amygdala Stephenson, 1944, Loxoconcha runa, Hermanites tschoppi (Bold, 1946), and Caudites sacer Bold, 1970b, an assemblage typical for the Aurila amygdala Subzone of the Pro- cythereis? deformis Taxon Range Zone (Bold, 1983), suggesting a late early Miocene (N 7) to early middle Miocene (N 10) age. The presence of Caudites nipeensis Bold, 1946, which so far had not been found in beds earlier than N 12, may suggest that this section rep- resents the upper part of the subzone. However, the specimens recovered here differ slightly from typical C. nipeensis (see discussion, p. 34). I2 BULLETIN 329 In connection with the López section I want to draw attention to a fauna from the Laguana and Bayaguana amber sites (Text-fig. 3) on the south flank of the east- ern Central Cordillera, which I received from Dr. R. Below of the Friedrich Wilhelm University in Bonn, West Germany. This assemblage resembles the fauna of the López section with the exception of the occur- rence of species of Hemicyprideis Malz and Triebel, 1970, and Perissocytheridea Stephenson, 1938, which suggests a lower salinity environment for the amber sites. The fauna also shows strong affinity to that of the Anguilla Formation in the Lesser Antilles and that of the Jealousy Formation of St. Croix (Bold, 1970b). The faunal relationships with the amber sites and Ап- guilla beds are shown in Table 5. They suggest 1n each case an age close to the early-middle Miocene bound- ary. The overlying Arroyo López section contains assem- blages of brackish-water and marine species, the first dominating in some samples, whereas in others the marine element is predominant (Table 4). The domi- nant brackish water form is Perissocytheridea caho- bensis Bold, 1981, known from the Las Cahobas For- mation (Haiti) and the Cercado Formation in the Río Cana and Río Gurabo sections. Only one specimen of Cyprideis pascagoulaensis (Mincher, 1941) was found; this species is quite common in the Las Cahobas and Cercado formations. The marine fauna consists almost entirely of species that are known from the upper Cer- cado and lower Gurabo formations: Radimella con- fragosa (Edwards, 1944), R. ovata, n. sp., Hermanites hornibooki (Puri, 1960), Proteoconcha? evai, n. sp., Loxoconcha (Loxocorniculum) fischeri (Brady, 1869), L. (L.) dorsotuberculata (Brady, 1866), Xestoleberis duo, n. sp. and X. antillea, n. sp., and including typical Pellucistoma howei Coryell and Fields, 1937, of the Gatun Formation of Panama. This fauna strongly sug- gests a late Miocene age (overlap of the ranges of R. confragosa and C. pascagoulaensis) and equivalence with the upper Cercado Formation of the Río Gurabo section. The part of the section near Santiago de los Caba- lleros (Text-fig. 1 [sect. 7], contains a typical “Gurabo fauna" with added deeper-water species, such as Cyth- erella postdenticulata Oertli, 1961, Krithe trinidadensis Bold, 1958, and Bradleya ex gr. dictyon (Brady, 1880), common in the Mao Formation north of Santiago (e.g., loc. H 15122; Bold, 1968, text-fig. 6, table 11), but absent in the Gurabo type section. Although no precise age determination can be made on the basis of the ostracodes, the assemblage is strongly suggestive of Pliocene. PALEOECOLOGY In the interpretation of the paleobathymetry and pa- leoecology I have relied extensively on unpublished work in the Caribbean by Patricia Fithian of Lousiana State University (1980), and by Llano (1978), Ramírez (1980) and Ramírez Castilla (1983), and on work in the Gulf of Mexico by Neal (1974) and by graduate students and myself on the Alacran reef. Published information on the distribution of Recent ostracodes of the Caribbean is contained in Baker and Hulings (1966), Bold (19782), and Breman (1982), and on the Gulf of Mexico in Hulings (19672), Puri and Hulings (1957), Puri (1960), Benda and Puri (1962), Hulings and Puri (1964), Benson and Coleman (1963), Krutak (1971, 1982a, 1982b, 1982c), Morkhoven (1972), and Maddocks (1974). In addition, I have used information from Hulings (1966), Hazel (1967a, 1967b, 1975a, 1975b) and Cronin (1983) on the distribution of os- tracodes along the southern Atlantic coast of the United States and from Swain (1969), Swain and Gilby (1976), and Ishizaki and Gunther (1974, 1976) on distribution on the Pacific side of Central America. In most cases the adult forms are accompanied by several of their molt stages, which makes it improbable that much displacement of the fauna occurred after deposition. There are a few exceptions to this rule and their implications will be discussed below. RíO CANA SECTION (Text-figs. 1 [sect. 1], 5; Table 1) The first brackish-water faunas are encountered about 100 m above the base of the Cercado Formation; the first marine fauna occurs about 165 m above the base: Cytherella Jones, 1850, Macrocyprina Triebel, 1960, Radimella Pokorny, 1969, Caudites Coryell and Fields, 1937, Proteoconcha Plusquellec and Sandberg, 1969, Loxoconcha (Loxocorniculum) Benson and Coleman, 1963, Paracytheridea Müller, 1894. A new brackish- water intercalation occurs between levels 185 and 225 m in alternating beds of lignite and beds with Anadara (Larkinia) patricia (Sowerby, 1850) (Caimito Forma- tion of Maury, 1931). Depths of deposition in this whole section probably fluctuated between 0 and 30 m. Above this second brackish-water interval the ma- rine fauna becomes more diversified, and in addition to the earlier-mentioned taxa, the lower Gurabo For- mation contains Cytherella sp. A of Bold, 1968, Bair- doppilata Coryell, Sample, and Jennings, 1935, Gan- gamocytheridea Bold, 1963b, Pseudopsammocythere Carbonnel, 1966, Munseyella Bold, 1957a, Orionina Puri, 1954, Jugosocythereis Puri, 1954, Cativella Cor- yell and Fields, 1937, Puriana Coryell and Fields, 1953b, Loxoconcha (Loxoconcha) Sars, 1866, Kan- garina Coryell and Fields, 1937, and Xestoleberis Sars, 1866, indicating progressively farther offshore condi- tions. At about the 410 m level, the water depth may have reached more than 100 m, when deeper-water ostracodes appear, such as Cytherella dominicana Bold, DOMINICAN REPUBLIC NEOGENE. 7: BOLD 13 1968, Argilloecia spp., Krithe dolichodeira Bold, 1946, Munseyella saundersi, n. sp., Loxoconcha (Palmocon- cha) banesensis Bold, 1946. This deeper-water interval lasts until about 470 m. Dimensions of K. dolichodeira, however, are below 0.5 mm, which indicates that water depths remained less than 200 m (see Río GURABO SECTION). In the upper 100 m ofthe Gurabo Formation a return to shallower-water conditions occurs. The Mao Formation begins with about 100 m of barren sandstones and conglomerates followed by mas- sive Mao Adentro limestones, which have yielded no washable samples. Only one sample, located at 980 m, contained any ostracodes. Species such as Trachyle- beridea mammidentata (Bold, 1946), Ambocythere ex- ilis Bold, 1966b, and Loxoconcha (Palmoconcha) ba- nesensis indicate fairly deep deposition (as much as 200 m?) similar to that in the Mao Formation of the Rio Gurabo section at about 750 m (Text-fig. 5). Río GURABO SECTION (Text-figs. 1 [sect. 2], 5; Table 2) Just above the lignites in the Cercado Formation (about 50 m above the base) the first brackish-water faunas occur. Above these beds follow about 90 m of barren beds and barely 10 m below the base of the Gurabo Formation (level 140 m) the first marine fauna occurs, which becomes rapidly more diversified up sec- tion and contains species of Bairdia M'Coy, 1844, Par- anesidea Maddocks, 1969, Pseudopsammocythere Carbonnel, 1966, Radimella Pokorny, 1969, Caudites Coryell and Fields, 1937, Jugosocythereis Puri, 1954, Hermanites Puri, 1955, Proteoconcha Plusquellec and Sandberg, 1969, Cytheretta Müller, 1894, Loxoconcha (Loxocorniculum) Benson and Coleman, 1963, Cyth- eropteron (Cytheropteron) Sars, 1866, Paracytheridea Müller, 1894, Pseudoceratina Bold, 1965a, Micro- cythere Müller, 1894, and Xestoleberis Sars, 1866. The assemblage indicates shallow-water marine deposition, but probably not shallower than about 30 m. Just above the basal conglomerate of the Gurabo Formation (+ 160 m level) the fauna becomes still more diversified and in addition contains species of Cytherella Jones, 1850, Gangamocytheridea Bold, 1963b, Coquimba Ohmert, 1968, Pterygocythereis Blake, 1933, Cytherura Sars, 1866, Hemicytherura Elofson, 1941, Eucytherura Müller, 1894. Very much the same fauna (with one occurrence of Ambocythere Bold, 1957c, which may indicate depositional depth of more than 100 m) continues to about the 360 m level, where the first specimens of Krithe dolichodeira Bold, 1946, make their appearance. These specimens are very small (less than 0.41 mm). In the Gulf of Mexico and on the Paria-Orinoco shelf this species occurs only below 180 m water depth, but the average size here is larger than 0.50 mm. The size of specimens of this species increases over the next 35 m (Text-fig. 6) to 0.55 mm (loc. NMB 15958, + 400 m level) at which point many other deeper-water taxa appear: Аг- gilloecia Sars, 1866, Macrocypris Brady, 1868, Bytho- cypris Brady, 1880, Cytherella dominicana Bold, 1968, C. sp. aff. C. vulgata Ruggieri, 1962, Parakrithe alta, n. sp., Loxoconcha (Palmoconcha) banesensis Bold, 1946, Cytheropteron (Lobosocytheropteron) palton Bold, 1966c, and Pedicythere variabilis, n. sp. Depth of deposition may have been greater than 200 m. At the same time there is a disappearance, or reduction in numbers, of shallow-water taxa such as Macrocy- prina Triebel, 1960, Bairdia M'Coy, 1844, Ganga- mocytheridea Bold, 1963b, Radimella Pokorny, 1969, Hermanites Puri, 1955, Coquimba Ohmert, 1968, Xes- toleberis Sars, 1866, and others. A little higher in the section such deeper-water species as Krithe lambi Bold, 1966a, Echinocythereis madre- maestrae, n. sp., Brachycythere sp. aff. B. russelli Howe and Lea, 1936, Cytheropteron (Aversovalva) bijuduvali, n. sp., and Bythoceratina monoceros, n. sp., appear for the first time. This type of faunal assemblage continues throughout the upper Gurabo and most of the Mao Formation, while the size of Krithe dolichodeira re- mains more or less constant at about 0.57-0.58 mm (Text-fig. 6). If we compare these dimensions with the size-graphs of Morkhoven (1972) and Bold (1981) it appears that a depth of deposition between 200 and 400 m 15 plausible. This also agrees with the occurrence of both Costa dohmi Bold, 1968, and C. bellipulex Levinson in LeRoy and Levinson, 1974 (though never as adults in the same sample) in this interval (430-670 m) (compare Bold, 1981, text-fig. 15). The record in the northern part of Hispaniola indicates that the latter species appears here somewhat earlier than originally thought. In the Mao Formation the occasional return of shal- low-water taxa, such as Quadracythere Hornibrook, 1952, Hermanites Puri, 1955, Coquimba Ohmert, 1968, and Puriana Coryell and Fields (in Puri, 1953b) and the occasional abundance of species of Bairdia M'Coy, 1844, and of Radimella confragosa (Edwards, 1944), may be indications of shallowing. Between localities NMB 16054 and 16097 (680—710 m) a regular influx of a few specimens of the brackish-water genus Peris- socytheridea Stephenson, 1938, occurs, whereas the rest of the fauna and the size of specimens of K. dolicho- deira Bold, 1946, would indicate only minor fluctua- tions in water depth. Therefore it seems likely that during the deposition of the Mao Formation there was considerably more downslope movement of the con- temporary sediment than during deposition of the Gu- rabo Formation, and that an upper slope environment persisted, with occasional mixing with inner-shelf species. Little or no transport of specimens is suspected ifa sample contains both adults and several molt stages 14 BULLETIN 329 of the same species. In most of the samples within this interval only the deep-water species [Cytherella sp. aff. C. vulgata, Argilloecia spp., Krithe dolichodeira and K. lambi, Brachycythere sp. aff. B. russelli and Loxocon- cha (Palmoconcha) banesensis] are represented by adults and molts, whereas the fewer shallow-water species are represented either by adults or by molts only (e.g., species of Radimella, Puriana, Orionina Puri, 1954, Uroleberis Triebel, 1958). Sample NMB 16090, which does not contain any deep-water species and in which both molts and adults of shallow-water species are present, could belong to a small subaqueous slide that maintained its sedimen- tary coherence. There are two discrepancies with previous obser- vations. Sample H 15448 of the Dominican Seaboard material, located between locs. NMB 16093 and 16097 (about 730 m level) contains Krithe trinidadensis Bold, 1958, K. prolixa Bold, 1966a, and K. morkhoveni Bold, 1960. The combination of these three species should be an indication of water-depth in excess of 700 m (Bold, 1981, fig. 14B). This is deeper than any fauna recorded in the present collection from the Río Gurabo and resembles conditions found farther east along the old Santiago—Puerto Plata road (Bold, 1968, table 12) and the Río Yaque del Norte near Santiago (Table 4). In sample H 15242 (located between locs. NMB 16151 and 16148, + 220 m level) a few specimens of Cyprideis pascagoulaensis (Mincher, 1941) occur. This return of brackish-water conditions in the lower Gu- rabo Formation may correlate with similar conditions in the Anadara (Larkinia) patricia beds of the upper- most Cercado Formation of the Río Cana section. Río МАО SECTION (Text-fig. 1 [sect. 3]; Table 3) Only a few samples, mainly from the lower Gurabo Formation, were available. They show an earlier oc- currence of Krithe dolichodeira Bold, 1946 than in the Río Gurabo section, and the length 15 greater (0.51 mm vs. 0.41 at the earliest occurrence in the Río Gurabo section). Although the fauna is generally indicative of relatively shallow water, the greater diversity of the fauna indicates farther offshore conditions than in the Río Gurabo section. In the upper Gurabo (e.g., loc. TU 1292, 1.5-2 km upstream from Mao Adentro) deeper-water species are present: Cytherella domini- cana Bold, 1968, Argilloecia spp., Macrocypris sp. 2, Brachycythere sp. aff. B. russelli Howe and Lea, 1936, and Echinocythereis madremaestrae, n. sp. Paleo- depths at this level were probably similar to those in the Gurabo section between locs. NMB 15983 and 16020 (from about 50 m below the Gurabo-Mao con- tact to about 20 m above it). However, the dearth of samples in the upper Gurabo and Mao formations and the lack of stratigraphic control makes a more detailed interpretation impossible. Presence of Krithe dolicho- deira Bold, 1946 (length up to 0.61 mm), K. mork- hoveni Bold, 1960 and Cytherella sp. aff. C. vulgata Ruggieri, 1962, in the one sample (H 15207) of the Mao Formation indicates considerably deeper depo- sition than in the Río Gurabo section. The shallow- water species, Radimella confragosa (Edwards, 1944), Orionina serrulata (Brady, 1869) and Paranesidea an- tillea (Bold, 1946) occur as single specimens, and are probably redeposited downslope (for location, see Saunders, Jung, and Biju-Duval, 1986, text-figs. 30, 8153 Rio YAQUE DEL NORTE SECTION (Table 4) The part of the Río Yaque del Norte included in the present study stretches from Baitoa in the south to the city of Santiago de los Caballeros, some 20 km down- stream to the north. The lower (upstream) part of the section, here called the Baitoa section, yielded only a few specimens, which indicate a shallow-marine en- vironment (probably inner shelf). The unconformably overlying beds of the López sec- tion (Saunders, Jung, and Biju-Duval, 1986, text-fig. 25) contain a fauna that indicates a similar shallow- marine environment, but slightly deeper than that of the Anguilla Formation and the Laguana and Baya- guana amber sites (Table 4), where some taxa (e.g., Hemicyprideis Malz and Triebel, 1970) suggest slightly lower than normal salinities. In the Arroyo López section, the predominance of Perissocytheridea cahobensis Bold, 1981, in some sam- ples indicates local brackish-water environment, but the near absence of Cyprideis pascagoulaensis (Minch- er, 1941) points to the presence of special conditions. This species may not have been able to tolerate fairly high salinities (as are suggested by the accompanying marine fauna), whereas P. cahobensis might have had a higher tolerance. In the Arroyo López section the latter species is always smooth and polished-looking (as is the single specimen of C. pascagoulaensis), a condition which Carbonel (1982) and Carbonel and Pujos (1982) relate to a fairly high calcium content of the water and a low Mg/Ca ratio. Carbonnel (1975) relates this phenomenon to increasing temperatures, whereas Bold (1976) thought it to be simply an indi- cation of increased calcium content of the environ- ment. Chivas, DeDecker, and Shelley (1983) point out that the Mg/Ca ratio in ostracode shells increases with increasing temperature so that the two factors may well be interrelated. The specimens of P. cahobensis in the Cercado Formation of the Río Gurabo and Río Cana —— е | ARANA, Pme DOMINICAN REPUBLIC NEOGENE. 7: BOLD 15 sections, and in the Las Cahobas Formation of Haiti (Bold, 1981) vary from smooth to lightly reticulate, and are always accompanied by punctate C. pasca- goulaensis. This would suggest that the environment ofthe Arroyo Löpez section is more calcitic than that of the Las Cahobas and Cercado formations (for lo- cation ofsamples, see Saunders, Jung, and Biju-Duval, 1986, text-figs. 21, 26). The upper part ofthe section near Santiago contains large specimens of Krithe trinidadensis Bold, 1958 (more than 1 mm in length), which suggests that these beds were deposited in a deeper-water environment than was attained in the Rio Gurabo section. This is confirmed by the presence of such deep-water species as Cytherella postdenticulata Oertli, 1961, and Brad- leya ex gr. dictyon (Brady, 1880), together with a gen- eral absence of shallow-water taxa, except in a turbidite lens reported by Vokes (loc. TU 1227A). Conditions are similar to those reported earlier (Bold, 1968) in samples along the old Santiago-Puerto Plata road, and indicate an upper slope environment, in places pos- sibly as deep as 1000 m. CORRELATION BETWEEN RÍO CANA AND RIO GURABO SECTIONS (Text-fig. 5) Although these sections are only about 5 km apart, there is a significant change in depositional characters with the Río Cana section always much shallower than the Gurabo one. In both sections the first marine fau- nas are found about 150 m above the base of the Cer- cado Formation. The Radimella event coincides with this facies change. However there is a second brackish- water interval in the Río Cana section 185-225 m above the base, and a similar occurrence of brackish- water beds intercalated between marine beds is found in the Río Guayabín farther west. In the Río Gurabo section there is only a doubtful indication of the prox- imity of brackish-water conditions at about the 200 m level (see p. 14). The base of the Gurabo Formation (at the 280 m level in the Río Cana, but about the 150 m level in the Río Gurabo) is marked by the first appearance in both sections of Cytherella sp. A of Bold, 1968, and Gangamocytheridea? plicata Bold, 1968. Possible shallow-water marker species are Radi- mella ovata, n. sp. and Coquimba congestocostata (Bold, 1963b). These forms disappear just before or during a deepening of the environment at about the 315 m level in the Río Cana, about 395 m in the Río Gurabo. Another observed possibly-correlatable horizon is the boundary between the distribution of Munseyella Jungi, n. sp. and M. saundersi, n. sp., at 530 m in the Río Gurabo, and between 350 and 410 m in the Río Cana. The most logical correlation is suggested by the two faunal changes: the lower one from brackish-water to marine, the second one representing a slight deepening in the Río Cana section at the 410 m level, and con- siderable deepening in the Río Gurabo section at the 380 m level (Text-fig. 5). In this case the base of the Gurabo Formation should rather be placed at the base of the conglomerates near loc. NMB 17002 in the Río Cana (180 m). The gradual faunal change between the Gurabo and Mao formations clearly shows that we are dealing with a single cycle of deposition, and that the “basal” conglomerate that marks the base of the Gu- rabo Formation in its type section, 15 only of very local significance. In view of these correlation difficulties, I should prefer to go back to Maury's original molluscan zonation of Aphera islacolonis and Sconsia laevigata zones instead ofusing the names “Cercado Formation" and “Gurabo Formation” (Bold, 1968, p. 40). CONCLUSIONS Тће sedimentary environment of the Río Cana sec- tion is always shallower than that of contemporaneous beds in the Río Gurabo section. Age-equivalent beds in the Río Mao section were deposited in slightly deep- er water and this increase in depth is continued in the Río Yaque del Norte section and in beds exposed along the old Santiago-Puerto Plata highway (Bold, 1968, table 12). Therefore there is an increase in depth of deposition in a west-east direction as was previously noted (Bold, 1968). Each marine section starts with a shallow-water fa- cies (less than 30 m in depth) and shows an upward increase in depth of deposition. The greatest depth in the Río Cana section may have reached 200 m in the upper Gurabo and Mao formations. In the Rio Gurabo section this depth may have been exceeded before the end of Gurabo deposition and depths could have reached more than 400 m in the Mao Formation. In the Rio Mao section, similar depths may have been attained already in the upper part of the Gurabo For- mation, while in the Santiago section (and along the old Santiago-Puerto Plata highway), the depth of de- position may have been near 1000 m. In all sections this increase in depth is slow and gradual (with fluctuations in the Río Guayabin and Río Cana sections) and there is no sudden change in conditions at formational boundaries. In fact, the Cer- cado, Gurabo and Mao formations clearly belong to a single cycle of deposition during late Miocene and Plio- cene. On the basis of ostracode assemblages there is no clear distinction between formations. The Cercado Formation is continental to brackish in nature, but the marine invasion takes place before the end of Cercado deposition. The Gurabo Formation is of inner-shelf to 16 BULLETIN 329 outer-shelf environment and may include (especially in the Santiago section) upper slope deposits. The Mao Formation varies from outer-shelfto upper continental slope. Similar environments occur at different times in the different sections. Moreover this east-west transgression was not a continuous one as suggested by the intercalation of brackish-water beds between marine horizons in the Río Cana and Río Guayabín sections (Bold, 1968, table 4). SYSTEMATIC PALEONTOLOGY INTRODUCTION In paleontology, we are dealing normally with mor- phospecies. In the case of Ostracoda, fossil species are based exclusively on the morphology ofthe shell, which, however, is an integral part of the animal's body and therefore reflects part of the soft-part morphology, e.g., muscle attachments, eyes, pores (sensory hairs). In neontology, ostracode species may be recognized on the basis of their appendages and color markings, and they sometimes cannot be distinguished solely on the basis of carapace morphology. This is especially the case in the Cypridacea and, to a lesser degree in the Bairdiacea and Platycopina and in some of the Cyth- eracea (e.g., Paradoxostomidae, Xestoleberididae). For this reason, several of the unornamented forms with uncharacteristic outer morphology have been kept in open nomenclature in the past and only a few of them have been systematically described and named in this report. This is done to avoid further proliferation of unnamed species and to lessen confusion with species in open nomenclature in previous publications both by myself and by other authors. Some forms are com- pared to previously-named species and prefixes have been used in the following sense: aff. (related to, but not identical); cf. (similar in general morphology, but not identical and probably not even related); ex gr. (related to, and may be placed within the species men- tioned ifa rather wide range of variability is accepted). A species name may be followed by a question mark, indicating that these specimens may be identical to the previously-described species, but that identification is uncertain because of poorly-preserved present or orig- inal material, or insufficient original description and/ or poor illustration. This may occasionally overlap with the ex gr. category. If a generic name is followed by a question mark it indicates that the species may not belong to that par- ticular genus (within its presently-accepted limits), but that there 15 not sufficient evidence to separate it at this time. А generic name put in quotation marks in- dicates that in my opinion the species belongs to a new and undescribed genus, but that this is not the place to establish such a genus. Holotypes of previously- published species are referred to by their Museum Col- lection number, their type locality and its stratigraphic horizon. In a few cases the names of the repositories are quoted in full, but in the majority of cases acronyms have been used as follows: AMNH: American Museum of Natural History, New York, NY, U.S.A. BM(NH): British Museum (Natural History), London, England, U.K. FGS: Florida Geological Survey, Tallahassee, FL, U.S.A. GIRU: Geological Institute of the Rijksuniversiteit, Utrecht, Netherlands. HVH: H. V. Howe collections, Louisiana State Uni- versity, Baton Rouge, LA, U.S.A. NMCM: Ministerio de Minería, Combustibles y Me- talurgía, Archivo Micropaleontológico, Habana, Cuba. USGS: U. S. Geological Survey, Washington, DC, U.S.A. USNM: U. S. National Museum of Natural History (Smithsonian Institution), Washington, DC, U.S.A. The type (and other) localities of the present species are referred to by the locality numbers of the Natural History Museum of Basel, Switzerland. These locality numbers have received a prefix “NMB”. Samples of the Dominican Seaboard Oil Company, collected by C. F. Dohm, and studied by Bermüdez (1949) and Bold (1968) have the prefix *H". Samples with prefix “TU” were collected by Emily and Harold Vokes of Tulane University. When reference is made to a species in open nomenclature from a previous publication, the deposited material is called Reference material", with a "Reference locality" and stratigraphic horizon. Dimensions are in millimeters; L — length, H — height, W — width. Illustrated and measured specimens are identified by their catalogue number in the H. V. Howe collec- tions, except in some cases (especially if only a single individual was recovered from a locality), where the measured specimens have been left in the assemblage slides of Bold's private collection (Department of Ge- ology, Louisiana State University, Baton Rouge, LA, U.S.A.). These assemblage slides are catalogued by their NMB or TU locality numbers or by their locality names (е.2., Laguana and Bayaguana amber sites), and by position on the slide (**No.”). The reason for not adding them to the H. V. Howe collection is the continued use of these slides while research in the Dominican Republic is progressing. Removing the specimens from the assemblage slides would, in some cases, have com- pletely removed the species from these slides, which could cause confusion during further study. At the end of the descriptions the heading **Occur- DOMINICAN REPUBLIC NEOGENE. 7: BOLD 17 rence" gives the distribution within the present study area (northern Dominican Republic). Details of these occurrences are given in Tables 1-4. The heading “Dis- tribution" gives the stratigraphic and geographic dis- tribution of the species within the area of the U. S. Atlantic and Gulf coastal plains, Mexico and the Ca- ribbean (Central America, northern South America, the Lesser and Greater Antilles, and the Bahamas). For each species the number of specimens studied in the present material (Cibao Valley only) is given under the heading “Material”. SYSTEMATICS Order PODOCOPIDA Miüller, 1894 Suborder PLATYCOPINA Sars, 1866 Genus CYTHERELLA Jones, 1850 GROUP 1 SHALLOW-MARINE SPECIES (Bold, 1981, p. 54) Cytherella caelata Bold Cytherella caelata Bold, 1963b, p. 370, pl. 1, figs.1a-d; Bold, 1968, tables 6, 11; Bold, 1970а, table 1; Bold, 1972a, table 2; Bold, 1975c, table 2. Diagnosis. — A species of Cytherella with punctate carapace and slightly raised rims at both ends, tran- sitional to Cytherelloidea Alexander, 1929. Holotype. —HVH No. 6835. Type locality. — Loc. Е. 11862, Melajo River, Trini- dad. Stratigraphic horizon. — Melajo clay member of the Springvale Formation (Pliocene). Dimensions. — Right valve, L: 0.56; H: 0.32; W: 026 (loc. NMB 16172, No. 25). Material. — Four specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pliocene: Trini- dad, Venezuela, Dominican Republic, Cuba. Cytherella species aff. C. pandora Kornicker Cytherella sp. aff. pandora Kornicker. Bold, 1966d, pl. 2, fig. 1. ?Cytherella pandora Kornicker, 1963, p. 69, figs. 25-29, 43-44; Ba- . ker and Hulings, 1966, p. 114, pl. 1, fig. 15. Diagnosis. — A species of Cytherella, elongate sub- rectangular in shape, with slightly concave dorsal and ventral margins; surface covered with small, oval punctations. Holotype. — USNM 117C-2. Type locality. — Bimini, Bahamas. Stratigraphic horizon. — Recent. Reference material. —MVH No. 8256. Reference locality. — Coco Solo borehole 9 at 31.5 ft, Colón, Panama. Stratigraphic horizon. — Recent. Dimensions. — Right valve, L: 0.63; H: 0.33 (loc. TU 1443, No. 1). Material. — One specimen. Occurrence. — Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Recent. Cytherella species aff. C. pulchra Brady Cytherella sp. aff. C. pulchra Brady. Bold, 1957b, p. 235, pl. 1, fig. 1; Bold, 1963b, table 5; Bold, 1965b, p. 386, pl. 1, fig. 4; Bold, 1975a, tables 2, 5, 6, 9. Diagnosis. — A species of Cytherella with parallel, slightly concave dorsal and ventral margins and round- ed, almost equal ends. Reference material. —HVH No. 8826. Reference locality. — Loc. 6795, east of Palma Dulce, Enriquillo Basin, Dominican Republic (Bold, 1975c, p. 555, text-fig. 11). Stratigraphic horizon. —Jimani Formation (Plio- Pleistocene). Dimensions. – НУН No. 10800 (right valve), L: 0.57; H: 0.32; HVH No. 10800 (left valve), L: 0.55; H: 0.30 (loc. NMB 15937). Material. — More than 70 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Río Yaque del Norte (López, Arroyo López, Santiago): (Table 4). Laguana amber site: (Table 5). Distribution. — Oligocene to Recent: Caribbean. Cytherella species aff. C. semitalis Brady Cytherella sp. Bold, 1968, p. 43, pl. 1, figs. 2, 3, tables 4, 5, 9, 11. Cytherella sp. aff. C. semitalis Brady. Bold, 1981, p. 55, pl. 1, fig. 1. Diagnosis. — А species of Cytherella with deep punc- tations except in the center of the valves, obliquely- rounded posterior and evenly-rounded anterior end. Reference material. —HVH No. 9998. Reference locality. — Riviére Féliciane, west of Mus- cady, Central Haiti (Bold, 1981, text-fig. 8). Stratigraphic horizon. —Las Cahobas Formation (Pliocene?). Dimensions. — Left valve, L: 0.59; H: 0.38 (loc. NMB 16106, No. 1). Material. — Thirteen specimens. Occurrence. —Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Recent: Hispan- iola; Recent: Gulf of Mexico. 18 BULLETIN 329 Cytherella species A Cytherella sp. A. Bold, 1968, p. 42, pl. 1, figs. 4a, b, tables 5, 7, 9, 10. Diagnosis. — A species of Cytherella of elliptical out- line, with a submedian, dorsal, vertical sulcus; wedge- shaped in dorsal view, widest posteriorly. Reference material. – НУН No. 8320. Reference locality. —Loc. H 15117, Río Yaque del Norte, Dominican Republic (Bold, 1968, text-fig. 6). Stratigraphic horizon. —Baitoa Formation (middle Miocene). Dimensions. — Right valve, L: 0.54; H: 0.31 (loc. NMB 17189, No. 13). Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Yaque del Norte (López): (Table 4). GROUP 2 DEEPER-MARINE SPECIES (ABYSSAL TO OUTER-NERITIC) (Bold, 1981) Cytherella species aff. C. vulgata Ruggieri Cytherella sp. aff. C. vulgata Ruggieri. Bold, 1968, p. 40, pl. 2, fig. 2, tables 4, 7-9, 11, 12; Bold, 19715, tables 1, 4, 5; Bold, 1972a, table 4; Bold, 1975a, table 13; Bold, 1981, p. 55, pl. 1, fig. 3, tables 2 12214915. Diagnosis. — A species of Cytherella, broadly rect- angular in outline with papillate posterior part and wedge-shaped dorsal view, slightly compressed in the middle. Reference material. — НУН No. 8314. Reference locality. —Loc. Н 15000, old Santiago- Puerto Plata road, Dominican Republic (Bold, 1968, text-fig. 7). Stratigraphic horizon. —"Mao Formation” (Plio- cene). Dimensions. — Right valve, L: 0.79; H: 0.46 (loc. NMB 17196, No. 2). Material. — About 40 specimens. Occurrence. — Ело Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. —Oligocene to Pleistocene: Trinidad, Hispaniola, Jamaica. Cytherella dominicana Bold Cytherella dominicana Bold, 1968, р. 41, pl. 1, figs. la-e, tables 7, 8, 11; Bold, 1971b, table 5; Steineck, 1981, pl. 1, fig. 15. Diagnosis. — A species of Cytherella with heavy, sub- ovate carapace, exhibiting a deep central pit and strong sexual dimorphism. Holotype. – НУН No. 8317. Type locality.—Loc. H 15101, on old Santiago- Puerto Plata road, Dominican Republic (Bold, 1968, text-fig. 7). Stratigraphic horizon. — "Mao Formation” (Plio- cene). Dimensions.—HVH No. 10802 (right valve, fe- male), L: 0.75; H: 0.51; HVH No. 10802 (left valve, female), L: 0.72; H: 0.45; HVH No. 10802 (right valve, male), L: 0.79; H: 0.52; HVH No. 10802 (left valve, male), L: 0.76; H: 0.48 (all from loc. NMB 15973). Remarks. — Dimensions ofthe type material are con- spicuously larger, which may be due to the fact that this material comes from considerably deeper-water environment than the present material. Material. — More than 100 specimens. Occurrence. — Rio Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Oligocene: Jamaica; middle Mio- cene: Trinidad; Pliocene: Dominican Republic, Ja- maica. Cytherella species B Cytherella sp. B. Bold, 1968, p. 43, pl. 1, figs. 5a, b, tables 4, 9, 11; Bold, 1969, p. 120, table 1. Diagnosis. — A species of Cytherella with the pos- terior end much higher than the anterior. Reference material. — HVH No. 8321. Reference locality. — Maury's Bluff 1 on the Río Mao (loc. H 15212), Dominican Republic (Bold, 1968, text- fig. 4). Stratigraphic horizon. — Gurabo Formation (upper Miocene). Dimensions. — HVH No. 10801 (right valve), L: 0.59; H: 0.32 (loc. NMB 17011). Material. – Теп specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Rio Mao: (Table 3). Distribution. — Middle Miocene-Pliocene, Greater Antilles. Cytherella postdenticulata Oertli Cytherella postdenticulata Oertli, 1961, p. 19, pl. 1, figs. 1-11; Bold, 1981, p. 55, pl. 1, fig. 2 (with synonymy). Diagnosis. — A species of Cytherella of ovoid shape, with the ventral margin slightly concave; posterior end papillate. Holotype. — Geological Institute, University of Mi- lano, Italy, No. 1339. Type locality. — Brice della Croce section (lower part), Type Langhian, Italy. Stratigraphic horizon. — Lower Langhian. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 19 Dimensions. —Right valve, L: 0.86; H: 0.55 (loc. NMB 17196, No. 3). Material. — Five specimens. Occurrence. — Río Yaque del Norte (Santiago): (Ta- ble 4). Distribution. — Middle Miocene-Pliocene: Caribbe- an; Aquitanian-Tortonian: Italy. Genus CYTHERELLOIDEA Alexander, 1929 Cytherelloidea species B Plate 1, figure 1 Cytherelloidea sp. B. Bold, 1966а, pl. 4, fig. 10. Cytherelloidea sp. Bold, 1968, tables 4, 10; Bold, 1975c, tables 2, 4 (part). Cytherelloidea umbonata Edwards. Teeter, 1975, p. 490, figs. 23п-о [not C. umbonata Edwards, 1944]. Diagnosis. — А species of Cytherelloidea, similar in many respects to Cytherelloidea umbonata Edwards, 1944 (p. 506, pl. 85, figs. 1, 2), but with steeper pos- terodorsal slope and more dorsally-extended posterior ridge. Reference material. —H VH No. 8258. Reference locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Dimensions. — Left valve (destroyed), L: 0.62; H: 0.37 (loc. NMB 16180). Material. — Seven specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Distribution. — Upper Miocene (Greater Antilles) to Recent (Central America, Gulf of Mexico). Cytherella species Scattered specimens of possibly more than one un- identified species of Cytherella are found in the sections ofthe Río Mao (Table 3), Río Yaque del Norte (López) (Table 4) and the Bayaguana amber site (Table 5). Suborder PODOCOPINA Sars, 1866 Superfamily CYPRIDACEA Baird, 1850 Family PONTOCYPRIDIDAE Miüller, 1894 Genus PONTOCYPRIS Sars, 1866 Pontocypris ex gr. dreikanter (Coryell and Fields) Plate 1, figure 3 aff. Macrocypris dreikanter Coryell and Fields, 1937, p. 4, pl. 1, figs. 4a, b. Erythrocypris dreikanter (Coryell and Fields). Bold, 1946, p. 63, pl. Sp ie Sr Pontocypris dreikanter (Coryell and Fields). Bold, 1958, p. 397, pl. 2, figs. 2a, b; Bold, 1978b, table 8. Not Pontocypris dreikanter (Coryell and Fields). Neufville, 1979, p. 143, pl. 3, figs. 6a, b. Diagnosis. — A triangular species of Pontocypris. Reference material. - GIRU D 27014. Reference locality. — Loc. T 1439, 2 km SW of Banes on road to Santa Isabel de Nipe, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (— Jücaro Formation of Kozary, 1957, according to Jakus, 1983, p. 62). Dimensions. — НУН No. 10482 (left valve), L: 0.62; H: 0.31 (loc. NMB 17011). Material. — Eight specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Distribution. — Upper Miocene to Recent: Cuba, Hispaniola, Costa Rica. Pontocypris species Plate 1, figures 9, 10 Paracypris sp. Bold, 1968, p. 47 (part) [not pl. 2, fig. 6]. Paracypris sp. 2. Bold, 1969, pl. 1, figs. 4a, b; Bold, 1975a, tables 2, 4 (part); Bold, 19754, table 1. Diagnosis. — À species of Pontocypris, elongate tri- angular in side view with the greatest height just an- terior to one-third of the length; posterodorsal margin slightly concave just anterior to the posterior extrem- ity; dorsal view elongate bomb-shaped with the great- est width just anterior to one-third of the length; right valve slightly larger than left and overlapping along the entire periphery. Reference material. НУН No. 8741. Reference locality. —Ponce Cement Quarry, Puerto Rico. Stratigraphic horizon. — Ponce Formation s. s. (Mio- Pliocene). Dimensions. —HVH No. 10491 (carapace), L: 1.09; H: 0.45; W: 0.31 (loc. NMB 16184). Material. — Nine specimens. Occurrence. — Río Gurabo: Cercado and Gurabo for- mations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pliocene: Hispan- iola, Puerto Rico, Cuba. Genus PROPONTOCYPRIS Sylvester-Bradley, 1947 Propontocypris varaderoensis Lubimova and Sánchez-Arango Plate 1, figure 2 Propontocypris sp. Bold, 1968, p. 20, pl. 4, fig. 11, tables 7, 11; Bold, 1971b, table 6; Bold, 1975c, table 2; Bold, 1978b, table 9; Bold, 1981, p. 107. Propontocypris? varaderoensis Lubimova and Sánchez-Arango, 1974, p. 74, pl. 6, figs. 7, 7a. Diagnosis. — A species of Propontocypris with almost triangular outline, highest submedially with subequal slopes anteriorly and posteriorly. Holotype. —NMCM H-20-06. 20 BULLETIN 329 Type locality. — Varadero well #1: 60 m, Matanzas, Cuba. Stratigraphic horizon. — Mio-Pliocene. Dimensions. — HVH No. 10481 (right valve), L: 0.65; H: 0.47 (loc. NMB 16137). Material. — Twenty-eight specimens. Remarks. — Propontocypris varaderoensis is more sharply pointed posteriorly than P. edwardsi (Cush- man) [see Cronin, 1979, p. 142, pl. 17, fig. 8]. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Yaque del Norte (Arroyo Ló- pez): (Table 4). Distribution. — Upper Miocene to Recent: Greater Antilles, Costa Rica. Genus ARGILLOECIA Sars, 1866 Argilloecia vespa, new species Plate 1, figure 4 Argilloecia sp. cf. A. sp. 1. Bold, 1971b, p. 337, pl. 3, fig. 2. Etymology ој пате. —(L.) vespa = wasp [because of the “sting-shaped” curvature of the posterior end]. Diagnosis. — A species of Argilloecia with a hook- like posterior curve, especially well-developed in the right valve. Holotype. —HVH No. 10483. Paratypes. —HVH No. 10484 (one left valve, two right valves), HVH No. 10485 (one left valve, and one right valve). Type locality. — Loc. NMB 16020, Río Gurabo sec- tion. Stratigraphic horizon. — Basal Mao Formation. Description. — Carapace small, elongate, highest just posterior to the middle. Anterior margin in the right valve only slightly obliquely-rounded; dorsal margin strongly convex, with long, curved slope towards the subventrally-situated posterior end; ventral margin sinuate, slightly concave just in front of the middle, strongly convex in anterior and posterior part, becom- ing concave just in front of the posterior extremity. The left valve has similar shape, but the anterior end is more obliquely-rounded, and the posteroventral margin is less concave. Right valve overlapping the left along the entire margin, strongest dorsally and mid- ventrally. Interior typical for the genus, marginal area wide in anterior end with large vestibule. Dimensions. – НУН No. 10483 (carapace, holo- type), L: 0.39; H: 0.18; W: 0.16 (loc. NMB 16020); HVH No. 10484 (left valve), L: 0.43; H: 0.20 (loc. NMB 16020); HVH No. 10484 (right valve), L: 0.42; H: 0.20 (loc. NMB 16020). Material. —Fifty-five specimens. Remarks. —'The peculiar “sting-like” posterior end sets this species apart. The only similar form in this respect is Protoargilloecia angulata Deltel, forme “acu- minée" of Ducasse, 1983 (pl. 1, figs. 9-19, especially figs. 13, 15, 16) from the late Eocene and early Oli- gocene of the Aquitaine Basin (France). Occurrence. —Rio Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Pliocene: Jamaica, Hispaniola. Argilloecia species cf. A. vespa, new species Plate 1, figure 7 Diagnosis. — An elongate species of Argilloecia with a turned-up anterior end in the left valve, an obliquely- truncate posterior end, and a small concavity in the posteroventral margin of both valves, just in front of the posterior extremity. The shape of anterior and pos- terior ends is reminiscent of A. vespa, n. sp., but the length/height ratio is much greater. Dimensions. —HVH No. 10489 (carapace), L: 0.51; H: 0.20 (loc. NMB 16020). Material. — Fourteen specimens. Remarks. — The similarity with А. vespa might sug- gest that this is the male of that species. However, this would mean an unusually strong sexual dimorphism, something that has not been encountered in Argilloe- cia. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Argilloecia species 1 Argilloecia sp. 1. Bold, 19715, p. 337, pl. 3, figs. 1a—c, pl. 4, figs. la, b; Bold, 1981, p. 58. Reference material. – НУН No. 8792. Reference locality. — Loc. J 3a, Port Morant, Jamai- ca. Stratigraphic horizon. — Bowden Formation (middle Pliocene). Dimensions. —HVH No. 10486 (left valve), L: 0.38; H: 0.20 (loc. NMB 15978). Material. —Fifty-five specimens. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. —Pliocene to Pleistocene: Jamaica, Hispaniola. Argilloecia species 2 Plate 1, figure 5 Argilloecia sp. 2. Bold, 1968, p. 47; Bold, 1971b, p. 337, pl. 3, fig. 3, pl. 4, figs. 2a, b. ?Argilloecia sp. A. Cronin, 1983, pl. 7, figs. G, I. Reference material. – НУН No. 8794. Reference locality. — Loc. J 3a, Port Morant, Jamai- ca. Dimensions. — НУН No. 10487 (carapace), L: 0.48; H: 0.50 (loc. NMB 16020). DOMINICAN REPUBLIC NEOGENE. 7: BOLD oq Material. —Seventy-seven specimens. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Pliocene to Recent, Dominican Re- public, Jamaica; Recent: Gulf of Mexico (varying in depth from 107-1070 m). Argilloecia species 3 Plate 1, figure 6 Argilloecia sp. 3. Bold, 19715, p. 337, pl. 3, fig. 4. Argilloecia sp. 1. Steineck, 1981, p. 361. Reference material. – НУН No. 8795. Reference locality. — Loc. J За, Port Morant, Jamai- ca. Dimensions. —HVH No. 10488 (carapace), L: 0.46; H: 0.22 (loc. NMB 16020). Material. — Fifty-four specimens. Occurrence. —Río Cana: Gurabo and Мао forma- tions (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Distribution. — Lower Miocene to Pliocene: Domin- ican Republic, Jamaica. Argilloecia species Plate 1, figure 8 Argilloecia sp. 1. Bold, 1968, p. 47, pl. 4, fig. 4, pl. 8, fig. 4. Argilloecia sp. 7. Steineck, 1981, p. 361. Reference material. —HVH No. 8291. Reference locality. — Loc. H 15244, Río Gurabo, Do- minican Republic (Bold, 1968, text-fig. 3). Stratigraphic horizon. — Gurabo Formation (upper Miocene). Dimensions. — HVH No. 10490 (right valve), L: 0.39; H: 0.20 (loc. H 15244). Material. — Fifty specimens. Occurrence. — Rio Cana: Gurabo Formation (Table 1). Río Gurabo: Cercado, Gurabo, and Mao forma- tions (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Lower Miocene to Pliocene: Jamaica, Dominican Republic; ?Recent: Trinidad. Family PARACYPRIDIDAE Sars, 1925 Genus PARACYPRIS Sars, 1866 Paracypris species B Paracypris sp. B. Bold, 1970b, p. 42, pl. 2, fig. 14. Reference material. —HVH No. 8733. Reference locality. — Crocus Bay, Anguilla. Stratigraphic horizon. — Anguilla Formation. Dimensions. —H VH No. 10803 (carapace), L: 0.82; H: 0.40; W: 0.32 (Bayaguana amber site). Material. — Four specimens. Occurrence. — Bayaguana amber site: (Table 5). Distribution. — Lower to middle Miocene: Northern Lesser Antilles, Hispaniola. Genus TRIANGULOCYPRIS Teeter, 1975 Triangulocypris pachyconcha (Bold) Bythocypris pachyconcha Bold, 1946, p. 67 (part), pl. 1, fig. 11. Paracypris sp. Bold, 1968, p. 47 (part), pl. 2, fig. 6, tables 5, 7, 9; Bold, 1975c, table 1. Bythocypris keiji Bold. Bold, 1968, tables 4, 7, 9, 11 (not B. keiji Bold, 1963b, p. 374, pl. 1, figs. 7a, b, pl. 12, fig. 10). Paracypris sp. 1. Bold, 1969, pl. 1, figs. 3a, b, table 1. Disopontocypris pachyconcha (Bold). Bold, 1975c, p. 140, pl. 14, fig. 8, table 4. Holotype. — GIRU S 12967. Type locality. —Loc. T 1081A, Loma La Cruz, San- tiago de Cuba. Stratigraphic horizon. —La Cruz Formation (Plio- cene). Dimensions. —Right valve, L: 0.79; H: 0.47 (loc. NMB 16090, No. 3). Material. — About 40 specimens. Remarks. — Bythocypris laeva Puri, 1960 (p. 132, pl. 5, figs. 5, 6, not pl. 6, figs. 11-13) (holotype: FGS S 5233, paratypes: HVH No. 4772), differs from both 8. pachyconcha and B. keiji by its gently-curved dorsal margin and fairly high anterior end. In the other two species the dorsal margin is angled at the greatest height. This angulation is much stronger in 7. pachyconcha. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pliocene, Greater Antilles. Family MACROCYPRIDIDAE Müller, 1894 Genus MACROCYPRIS Brady, 1868 Macrocypris species 1 Plate 1, figures 11, 12 Macrocypris sp. Bold, 19715, p. 337, pl. 1, figs. 7a, b. ?Macrocypris sp. 2. Steineck, 1981, p. 361, text-fig. 8, table 2. ?Macrocypris bathyalensis Hulings. Cronin, 1983, pl. 4, fig. C (male) [not figs. A, B]. Diagnosis. — Ап extremely elongate species of Mac- rocypris. Reference material. —HVH No. 8797. Reference locality. — Loc. J 3a, Port Morant, Jamai- ca. Stratigraphic horizon. — Bowden Formation (middle Pliocene). Dimensions. — НУН No. 10492 (left valve), L: 1.02; H: 0.25 (loc. NMB 16097); HVH No. 10493 (right valve), L: 0.86; H: 0.28 (loc. NMB 16039). Material. — Two specimens. Remarks. — The species figured by Steineck from the lower Miocene of Jamaica has a slightly higher anterior 20) BULLETIN 329 end and a more steeply-truncate posterior one. Al- though the lower Miocene and the Pliocene forms are closely related, they are probably not identical. The species figured by Cronin as the male of M. bathy- alensis may be identical, but the female (?) has not been found in the material from the Dominican Re- public. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. —Pliocene and Pleistocene: Jamaica, Dominican Republic; ?Recent in the Florida strait (136— 1029 m). Macrocypris species 2 Plate 1, figure 13 Diagnosis. — A species of Macrocypris, highest just in front of the middle, posterior end forming a slightly downwardly-curved beak; ventral margin almost straight. Dimensions. – НУН No. 10494 (left valve), L: 1.00; H: 0.31 (loc. NMB 16030); HVH No. 10494 (right valve), L: 1.07; H: 0.38 (loc. NMB 16030). Material. — Five specimens. Remarks. — Macrocypris sp. 2 is very similar to Mac- rocypria elegantula Whatley and Downing, 1983 (p. 353, pl. 4, figs. 14—16) from the middle Miocene of Australia, but differs by the lesser concavity of the dorsal slope of the posterior end in the right valve. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Genus MACROCYPRINA Triebel, 1960 Macrocyprina species Plate 1, figure 14 Macrocypris decora (Brady). Bold, 1968, tables 7, 9. Macrocyprina maculata (Brady). Bold, 1966d, pl. 1, figs. 5a, b. Macrocyprina sp. aff. M. maculata (Brady). Bold, 1978b, tables 2, 9. Diagnosis. — А species of Macrocyprina with a low anterior end, highly-arched dorsal margin and oblique- ly truncate posterior end, which is rather sharply- pointed ventrally. Reference material. НУН No. 8267. Reference locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Reference material. —HVH No. 6324. Reference locality. — Atlantis cruise 1947, 27°49.3'N, 91°53’W, Gulf of Mexico (Rothwell, 1949). Stratigraphic horizon. — Recent (42-128 m). Dimensions. —HVH No. 10495 (left valve), L: 1.03; H: 0.39 (loc. NMB 16156). Material. — Twenty-three specimens. Remarks. — This species is similar to those described earlier by Bold (e.g., Bold, 1946) under the name Мас- rocypris decora (Brady) from the lower and middle Miocene of the Caribbean, and to Macrocypris sp. of Maddocks, 1974 (pl. 1, figs. 14, 15) from the Gulf of Mexico, but it is more sharply-pointed posteriorly. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene-Recent: Caribbean, Gulf of Mexico. Superfamily BAIRDIACEA Sars, 1888 Family BAIRDIIDAE Sars, 1888 Genus BYTHOCYPRIS Brady, 1880 Bythocypris species ?Bythocypris sp. Bold, 1946, p. 68, pl. 3, figs. 11a, b. ? Bythocypris sp. Bold, 19636, p. 375, pl. 1, fig. 8. Diagnosis. — A thin-shelled, fragile, elongate species of Bythocypris with very blunt anterior and almost parallel (slightly arched) dorsal and ventral margins and obliquely-truncate posterior end. Reference material. — GIRU D 27061. Reference locality. —Loc. T 1451, Bahia de Nipe, West of Antilles, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (= Jücaro Formation of Kozary, 1957, Jakus, 1983, p. 62). Dimensions. — Left valve, L: 0.60; H: 0.30 (loc. NMB 15933, No. 11). Material. — One specimen. Remarks.—' The Cuban species has a somewhat blunter posterior end, but is otherwise quite similar in shape and size (L: 0.62). The same is true for the species from Trinidad. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. —?Upper Miocene: Cuba; Pliocene: Dominican Republic, ?Trinidad. Genus BAIRDIA M'Coy, 1844 Bairdia longisetosa Brady Bairdia longisetosa Brady, 1902, p. 197, pl. 25, figs, 8, 9; Bold, 1968, p. 48, pl. 2, figs. 3a, b (with synonymy); Bold, 1975a, pp. 585, 586, 589, 590, 593; Bold, 19785, table 9. Neonesidea longisetosa (Brady). Teeter, 1975, p. 117, figs. 3a, 4a. Holotype. — Zoological Museum, Copenhagen, Den- mark. Type locality. —St. Thomas, Virgin Islands. Stratigraphic horizon. — Recent. Reference material. —HVH No. 8293. Reference locality. —Loc. Н 15092, old Santiago- Puerto Plata road, Dominican Republic (Bold, 1968, text-fig. 6). Stratigraphic horizon. — Mao Formation (Pliocene). Dimensions. — НУН No. 10804 (left valve, L: 1.15; N: 0.75 (loc. NMB 16103). DOMINICAN REPUBLIC NEOGENE. 7: BOLD 23 Material. — About 40 specimens. Occurrence. — Río Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Caribbe- an. Bairdia species aff. B. formosa Brady Plate 1, figure 18 Bairdia sp. aff. B. formosa Brady. Bold, 1968, p. 48, pl. 2, figs. 5a, b; Bold, 1972a, table 4. Diagnosis. — An oval-shaped species of Bairdia (pos- sibly Paranesidea) with strongly-dentate ends. Reference material. —HVH No. 8292. Reference locality. —Loc. H 15092, old Santiago- Puerto Plata road, Dominican Republic (Bold, 1968, text-fig. 6). Stratigraphic horizon. — Gurabo Formation. Dimensions. —HVH No. 10498 (left valve), L: 0.55; H: 0.33 (loc. NMB 16970). Material. — Twenty-five specimens. Occurrence. —Río Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Bairdia laevicula Edwards Bairdia laevicula Edwards, 1944, p. 506, pl. 55, figs. 3, 4; Swain, 1952 p. 17; Puri 1954. p. 223 pL 1, fg. 7; Hal 1965р: 27 Ppi 1, fig. 7; Baker and Hulings, 1966, p. 114, pl. 1, fig. 18; Swain, 1968, p. 7, pl. 1, figs. 4a, b, pl. 7, fig. 2, text-fig. 5; Bold, 1975c, p. 139, pl. 25, figs. 9, 10. Diagnosis. — An ovate, rather high species of Bairdia with flattened dorsal margin and rather blunt ends. Holotype. — USNM 559411. Type locality. — Natural Well, North Carolina. Stratigraphic horizon. — Upper Duplin marl (Plio- cene). Dimensions. —HVH No. 10805 (carapace), L: 1.04; H: 0.65 (loc. NMB 16182). Material. — Eight specimens. Occurrence. —Río Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Cercado and Gurabo for- mations (Table 2). Distribution. — Upper Miocene to Recent: Atlantic Coastal Plain, Gulf Coast, Cuba, Dominican Republic; Recent: Puerto Rico. Bairdia species A number of unidentifiable specimens of species of Bairdia occur scattered throughout the Cibao and Río Yaque del Norte valleys and the Cordillera Central. Occurrence.—Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Río Yaque del Norte (Ló- pez, Arroyo López): (Table 4). Laguana and Bayaguana amber sites: (Table 5). Genus BAIRDOPPILATA Coryell, Sample, and Jennings, 1935 Bairdoppilata oblongata (Bold) Plate 1, figures 16, 17 Bairdia amygdaloides Brady, var. oblongata Bold, 1946, p. 70, pl. 15 ps за 0; Bairdia oblongata Bold. Bold, 1973a, p. 151, table 1; Bold, 1975c, p. 239, pl. 14, fig. 10, pl. 15, figs. 11, 12; Sánchez-Arango, 1977, table 2. Bairdia aff. amygdaloides Brady, var. oblongata Bold. Lubimova and Sánchez-Arango, 1974, pl. 3, figs. 1, la. Holotype. —GIRU S 12972. Type locality. — Loma La Cruz, Santiago de Cuba, Cuba. Stratigraphic horizon. — La Cruz Formation (Plio- cene). Diagnosis. — An elongate-ovate species of Bairdop- pilata with strongly-convex dorsal and ventral mar- gins; dorsal margin angled at greatest height and halfway up the posterior slope; anterior end very obliquely- rounded, posterior end somewhat knoblike. Dimensions. —HVH No. 10497 (left valve), L: 1.05; H: 0.63 (loc. NMB 16970). Material. — Over 100 specimens. Occurrence. — Río Cana: Gurabo formation (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene and Pliocene: Cuba, Dominican Republic. Genus PARANESIDEA Maddocks, 1969 Paranesidea antillea (Bold) Plate 1, figure 15 Bairdia antillea Bold, 1946, p. 69, pl. 1, figs. 2a—c; Bold, 19655, p. 387, pl. 1, fig. 13; Bold, 1968, p. 49, pl. 7, figs. 8a, b; Bold, 1972b, p. 424; Bold, 1973a, table 1; Bold, 1975c, p. 138, pl. 15, fig. |; Sánchez-Arango, 1977, table 2; Bold, 1978b, tables 8, 10. Bairdia aff. B. antillea Bold. Lubimova and Sánchez-Arango, 1974, рб ngs: do La Diagnosis. — A species of Paranesidea with rather sharply-pointed extremities; strongly- and regularly- arched dorsal margin, becoming concave near the ends; gently convex ventral margin. Holotype. — GIRU D 12970. Type locality. — Loc. W 206, on trail from Victoria de las Tunas to Vásquez, West Oriente Province, Cuba. Stratigraphic horizon. —Paso Real (7 Arabos) For- mation (lower Miocene). Dimensions. —HVH No. 10496 (carapace), L: 0.88; H: 0.53; W: 0.41 (loc. NMB 16993). Material. — More than 150 specimens. Occurrence. —Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Río 24 BULLETIN 329 Yaque del Norte (López, Arroyo López, Santiago): (Ta- ble 4). Laguana amber site: (Table 5). Distribution. — Lower Miocene to Recent: northern and western Caribbean. Paranesidea species aff. P. fortificata (Brady) Bairdia sp. aff. B. fortificata Brady. Bold, 1968, p. 48, pl. 2, fig. 4; Bold, 1975c, table 2. Diagnosis. — А strongly-punctate species of Para- nesidea with large spines at both ends, anterior end only slightly higher than posterior. Reference material. – НУН No. 8295. Reference locality. — Loc. H 15242, Río Gurabo, Do- minican Republic (Bold, 1968, text-fig. 3). Stratigraphic horizon. — Gurabo Formation (upper Miocene). Dimensions. —HVH No. 8295 (left valve), L: 0.83; H: 0.44 (loc. H 15242). Material. — Two specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Río Mao: (Table 3). Distribution. — Upper Miocene and Pliocene: Cuba, Dominican Republic. Paranesidea dimorpha (Bold) Bairdia dimorpha Bold, 1963b, p. 373, pl. 1, figs. 6a-d, table 1; Bold, 1966c, table 1; Bold, 1975c, p. 139, pl. 15, figs. 13, 14 (716, 717), table 4; Bold, 1978b, table 2. Bairdia sp. Bold, 1972a, table 3. Diagnosis. — An ovate, strongly-punctate species of Paranesidea, characterized by a strong angulation of the junction of ventral and anterior margins in the right valve. Slight sexual dimorphism suspected. Holotype. — USNM 684064. Type locality. — Loc. R 11863, Melajo River, Trin- idad. Stratigraphic horizon. — Melajo clay member of Springvale Formation (Pliocene). Dimensions. —H VH No. 10806 (left valve, L: 0.80; H: 0.47 (loc. NMB 16097). Material. — Fifteen specimens. Remarks. —' These dimensions are similar to those of specimens from the Melajo clay. Specimens from the Manzanilla Formation (Trinidad) are slightly smaller (Bold, 1963b). Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Trinidad, Colombia, Dominican Republic, Cuba. Superfamily CYTHERACEA Baird, 1850 Family CYTHERIDEIDAE Sars, 1925 Subfamily CYTHERIDEIDINAE Sars, 1925 Genus CYPRIDEIS Jones, 1857 Cyprideis pascagoulaensis (Mincher) Plate 2, figures 1, 2 Anomocytheridea pascagoulaensis Mincher, 1941, p. 341, pl. 46, figs. la-f. Cyprideis pascagoulaensis (Mincher). Bold, 1976, p. 23, pl. 4, figs. 3-5 (with synonymy); Bold, 1981, p. 103, 105, tables 1, 5, 6, 8- 1215. Diagnosis. — Сагарасе subrectangular to subovate; subdorsal median sulcus; rounded pits, smaller in an- terior part of carapace; fairly strong sexual dimor- phism; no nodose carapaces observed. Description. —(see Sandberg, 1964, p. 141). Holotype. — HVH No. 2071. Type locality. —Shell Bluff, Chickasawhay River, Mississippi. Stratigraphic horizon. — Pascagoula Formation, Мпосепе. Dimensions. —HVH No. 10499 (left valve, female), L: 0.76; H: 0.48; HVH No. 10499 (right valve, female), L: 0.74; H: 0.43 (loc. NMB 16186). Material. — More than 150 specimens. Remarks. —Specimens from the Cercado Formation of the Gurabo and Cana rivers are always pitted. The single specimen from the Arroyo López section (Río Yaque del Norte) is almost smooth, which might be related to higher salinity (see comments on the same phenomenon in Perissocytheridea cahobensis Bold, 1981, on p. 14). Occurrence. — Río Cana: Cercado Formation (Table 1). Río Gurabo: Cercado Formation (Table 2). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Middle to upper Miocene: Gulf Coast, Caribbean. Cyprideis species Plate 2, figures 16-19 Cyprideis aff. pascagoulaensis (Mincher). Bold, 1968, table 11. Diagnosis. — An elongate, subrectangular species of Cyprideis with roughly pitted surface and a weak me- dian sulcus. Ends about equal in female, posterior end lower in male. Reference type. —H VH No. 10738. Reference locality. —Loc. Н 15093, old Santiago- Puerto Plata road, about 6 km northeast of Santiago (Bold, 1968, text-fig. 6). Stratigraphic horizon. — Mao Formation, according to Bermüdez (1949). Dimensions. – НУН No. 10738 (carapace, male), L: 1.01; H: 0.55; W: 0.42; HVH No. 10738 (carapace, female), L: 0.94; H: 0.50; W: 0.44 (loc. H 15093). Material. —Not recovered from NMB localities in the present material. Remarks.—' This species is similar to Cyprideis sp. Bold (19752, pl. 60, figs. 4a, b) from the Jimaní For- DoMINICAN REPUBLIC NEOGENE. 7: BOLD 25 mation of the Enriquillo Basin, but the specimens are poorly preserved and no positive identification can be made. They may be reworked. Genus HEMICYPRIDEIS Malz and Triebel, 1970 Hemicyprideis agoiadiomensis Bold Cyprideis sp. Bold, 1976, p. 26, pl. 4, fig. 14, text-figs. 11k, 1. Cyprideis aff. reversa (Bold). Lubimova and Sánchez-Arango, 1974 (part), pl. 9, figs. 5, 5a [not Cytheridea (Haplocytheridea) reversa Bold, 1946, p. 80, pl. 7, figs. 11a—c, pl. 8, figs. 6a-c]. Hemicyprideis agoiadiomensis Bold, 1981, p. 60, pl. 9, figs. 1-3, tables 2, 13. Holotype. —HVH No. 10005 (Bold, 1981, pl. 2, fig. 1). Type locality. — Loc. K 885, Ravine Dondieuque, Haiti (Bold, 1981, text-fig. 6). Stratigraphic horizon. — Las Cahobas Formation (middle Miocene). Dimensions. — Carapace, female, L: 0.58; H: 0.33; W: 0.28; carapace, male, L: 0.60; H: 0.32; W: 0.25 (Laguana amber site, No. 8). Material. —' Three specimens. Occurrence. — Laguana amber site: (Table 5). Distribution. — Middle Miocene: Cuba and Hispan- lola. Hemicyprideis cubensis cubensis (Bold) Cytheridea (Haplocytheridea) cubensis Bold, 1946, p. 79, pl. 7, figs. 8a-e. Hemicyprideis cubensis cubensis (Bold). Bold, 1976, p. 29 (with syn- onymy); Sánchez-Arango, 1977, table 2; Bold, 1981, pl. 18, tables 2, 3, 9. Holotype. — GIRU S 12994. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 143). Stratigraphic horizon. — Paso Real Formation (lower Miocene). Dimensions. — Carapace, L: 0.64; H: 0.32; W: 0.28 (Laguana amber site, No. 9). Material. — One specimen. Occurrence. — Laguana amber site: (Table 5). Distribution. — Lower to upper Miocene: Greater Antilles, northern Lesser Antilles, and Central Amer- ica. Hemicyprideis stephensoni (Bold) Cytheridea (Haplocytheridea) stephensoni Bold, 1946, p. 79, pl. 7, figs. Sa. Hemicyprideis stephensoni (Bold). Bold, 1976, p. 29 (with synony- my); Sánchez-Arango, 1977, table 2; Furrazola Bermúdez el al., 1978, p. 40; Bold, 1981, p. 14, tables 2, 3. Holotype. — GIRU S 12993. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 148). Stratigraphic horizon. — Paso Real Formation (lower Miocene). Dimensions. —HVH No. 10807 (carapace, female), L: 0.75; H: 0.43; W: 0.35; HVH No. 10807 (carapace, male), L: 0.76; H: 0.43; W: 0.32 (Bayaguana amber site). Material. — Fifty-six specimens. Occurrence. — Bayaguana amber site: (Table 5). Distribution. — Lower to middle Miocene: Greater Antilles, northern Lesser Antilles, and Central Amer- ica. Subfamily KRITHINAE Mandelstam, 1958 Genus KRITHE Brady, Crosskey, and Robertson, 1874 Krithe dolichodeira Bold Krithe dolichodeira Bold, 1946, p. 75, pl. 4, figs. 14a-b; Bold, 1981, p. 68, pl. 1, fig. 12 (with synonymy). Holotype. — GIRU S 12986. Type locality. — Loc. Т 1439, Nipe Basin, Cuba (Bold, 1973a, p. 148). Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (Jücaro Formation of Kozary, 1957, Ja- kus, 1983, p. 62). Dimensions. —See Text-figure 6. Material. — More than 300 specimens. Occurrence. — Río Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Upper middle Miocene to Recent: Caribbean. Krithe lambi Bold Krithe lambi Bold, 1966a, p. 180, pl. 22, figs. 1a—c, text-fig. 1; Bold, 1981, p. 67, pl. 1, fig. 11 (with synonymy). Holotype. —HVH No. 7883. Type locality. —Loc. RM 19391, Pozön-El Mene road, Falcón, Venezuela. Stratigraphic horizon. — Husito clay of Pozón For- mation (middle Miocene). Dimensions. — Left valve, L: 0.53; H: 0.27 (loc. NMB 16093, No. 17). Material. — Sixteen specimens. Occurrence. —Rio Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Lower Miocene to Pliocene: Carib- bean. Krithe prolixa Bold Krithe prolixa Bold, 1966a, p. 180; Bold, 1978b, table 4; Bold, 1981, p. 68 (with synonymy), tables 3, 4, 8, 13; Steineck, 1981, p. 347, pl. 1, fig. 13, table 2; Steineck et al., 1984, figs. 8j, 14, 15. Holotype. — USNM 563501 (as Krithe elongata Bold, 1960, p. 3, figs. 5a, b). 26 BULLETIN 329 Type locality. —Loc. Wirz 214, between Princess Town and Río Claro, Trinidad. Stratigraphic horizon. — Cipero Formation, Globo- rotalia fohsi robusta Zone, middle Miocene. Dimensions. —HVH No. 10508 (left valve), L: 0.78; H: 0.38 (loc. H 15101). Material. — One specimen. Occurrence. —Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Oligocene to Recent: Caribbean. Krithe trinidadensis Bold Krithe trinidadensis Bold, 1958, p. 398, pl. 1, figs. За-Е Sanguinetti, 1979, p. 132, pl. 4, figs. 2a, b, pl. 10, figs. 4a, b; Bold, 1981, p. 69 (with synonymy), tables 4, 8, 13, 14; Steineck, 1981, p. 347, pl. 2, figs. 9-11; Steineck et al., 1984, figs. 9B, L, 14, 15. Krithe aff. trinidadensis Bold. Breman, 1982, pl. 1, fig. 4e. Holotype. — USNM 562059 (Bold, 1958, pl. 1, fig. 4e). Type locality. —Loc. Favre 56a, 4.2 mi east of Rio Claro, Trinidad. Stratigraphic horizon. —Cipero Formation, Globo- rotalia fohsi lobata Zone, middle Miocene. Dimensions. — Left valve, L: 1.00; H: 0.54 (loc. NMB 17196, No. 1). Material. — One specimen. Occurrence. — Río Yaque del Norte (Santiago): (Ta- ble 4). Distribution. — Oligocene to Recent: Caribbean. Genus PARAKRITHE Bold, 1958 Parakrithe alta, new species Plate 2, figures 3, 4, Text-figures 7a, b Parakrithe sp. Bold, 1966c, table 1; Bold, 19722, table 2 (part); Howe and Bold, 1975, p. 308; Bold, 1978b, table 9. Parakrithe vermunti (Bold). Bold, 1968, table 7 [not Cytheridea (Do- locytheridea) vermunti Bold, 1946, p. 83, pl. 7, figs. 12 a-d]. Parakrithe sp. 1. Bold, 19715, pl. 2, fig. 1, pl. 5, figs. 3a-c [not pl. 3 tig. э]. Etymology of name. —(L) altum — high [because of the relatively large ratio of height to length]. Diagnosis. — А species of Parakrithe with a relatively large height : length ratio (> 0.6), and steeply-truncate posterior end. Holotype. —HVH No. 10500 (left valve, female). Paratypes. —HVH No. 10501 (right valve, female), HVH No. 10502 (right valve, female; left valve, fe- male; left valve, male), HVH No. 10503 (two left valves, female; one right valve, female). Text-figure 6.— Distribution of greatest length of specimens of Krithe dolichodeira in NMB samples from the Río Gurabo section. Only the length of the largest specimen in each sample is plotted to avoid the confusion of possible down-slope contamination by small- er specimens. г 800 m 161084 161064 16103 4 16097 5 16093 4 F 700 m 16090 4 16054 + 16030 | 16031 7 16039 + г 600 m 160204 15990 4 15983 + 159824 15979 - j 500 m 159787 159774 15973 + 15968 4 15933 У b 4 15958 | 400 т 15937 4 15941 15945 4 161254 16132 : | 5 8 5 3 3 3 3 3 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 2 a Text-figure 7.— Parakrithe alta, n. sp., HVH No. 10502, loc. NMB 16106, Mao Formation, Río Gurabo section. a: interior of right valve, X 145; b: interior of left valve, x145. Type locality. — Loc. NMB 16108, Río Gurabo sec- tion. Stratigraphic horizon. — Lower Mao Formation (Pliocene). Description. — Carapace short, rectangular, greatest height in posterior half. Anterior margin regularly- rounded, dorsal margin slightly sinuate, almost parallel to the sinuous ventral margin; posterior margin curved down steeply, almost vertically truncate at mid-height of the left valve, more gently curved in the right valve. Dorsal view somewhat drop-shaped, greatest width in the posterior half, anterior end attenuated, posterior end less acute. Left valve larger than the right, strongest overlap posterodorsally. Female higher and wider than the more elongate males. Hinge pseudoadont, with slight crenulation in the posterior part of the bar in the right valve. Marginal area very wide anteriorly, with a small triangular ves- tibule. Marginal pore canals long and slender, about 12 in the anterior end; fewer false radial canals (seven to nine). Selvage strongly curved inside just in front of the middle of the ventral margin. Adductor scars a vertical row of four individual scars, slightly elongate, except for the lower one. Frontal scar variable in detail, but always U-shaped. Dimensions. —HVH No. 10500 (left valve, female), L: 0.43; H: 0.23 (loc. NMB 16108); HVH No. 10501 (right valve, female), L: 0.43; H: 0.21 (loc. NMB 16108); HVH No. 10502 (right valve, male), L: 0.45; H: 0.23 (loc. NMB 16106); HVH No. 10502 (left valve, male), L: 0.39; H: 0.21 (loc. NMB 16106). Remarks. —The species differs from P. vermunti by its greater height and from Parakrithe rhamphodes Bold, 1966c (p. 19, pl. 1, figs. 4a-d, pl. 5, fig. 1) by its blunter posterior end. Material. — More than 30 specimens. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Pliocene: Cuba, Jamaica, Hispaniola, Mexico, Venezuela. Genus PSEUDOPSAMMOCYTHERE Carbonnel, 1966 Pseudopsammocythere ex gr. vicksburgensis (Howe and Law) Plate 2, figures 5-7, Text-figure 8 Krithe vicksburgensis Howe and Law, 1936, p. 75, pl. 6, figs. 12, 13. Paracyprideis vicksburgensis (Howe and Law). Bold, 1946, p. 78, pl. 7, fig. 4; Bold, 1950, p. 82. Parakrithella sp. Bold, 1963b, p. 378, pl. 4, fig. 4; Bold, 1966c, table 2, p. 15; Bold, 1968, tables 7, 9; Bold, 1973a, table 1; Bold, 1975a, p. 589, pl. 59, figs. 4a, b. Pseudopsammocythere sp. Bold, 1975c, tables 2, 4; Bold, 1981, p. 107. Psammocythere vicksburgensis (Howe and Law). Hazel, Mumma, and Huff, 1980, p. 382, pl. 1, fig. 1. Holotype. —HVH No. 1764. Type locality. — West bank of Pearl River at Byram, Mississippi. Stratigraphic horizon. — Byram marl, Oligocene. Reference material. —HVH No. 6861. Reference locality. — Melajo River, Trinidad. | Stratigraphic horizon. — Melajo clay member of | Springvale Formation, Pliocene. | Dimensions. —HVH No. 10506 (left valve), L: 0.45; H: 0.20; HVH No. 10504 (carapace), L: 0.45; H: 0.20; W: 0.15 (loc. NMB 16145). Remarks. — This form is very close to Krithe vicks- burgensis, but the carapace is a little more slender. e wie o lo 4 Text-figure 8. — Pseudopsammocythere ex gr. vicksburgensis (Howe and Law), interior of right valve, HVH 10507, loc. NMB 16097. Note the presence of additional scars behind the row of adductor muscle scars. 28 BULLETIN 329 However, there is so little difference between Oligo- cene, Miocene, Pliocene and Recent material, that I prefer to include them all in the same group. This group differs from a similar group of species, Pseudopsam- mocythere peterseni (Teeter, 1980) [= Parakrithella hanaii Teeter, 1975, p. 432, figs. 6h, 7с-е (not Para- krithella hanai Hartmann, 1962, p. 190); Parakrithella peterseni Teeter, 1980, p. 547], which group appears to be restricted to the Central American Province. Material. — About 140 specimens. Occurrence. — Río Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Bayaguana and Laguana amber sites: (Table 5). Distribution. —Oligocene to Recent: Mexican and United States Gulf Coast, Cuba, Hispaniola, Trinidad. Subfamily NEOCYTHERIDEIDINAE Puri, 1957 Genus CUSHMANIDEA Blake, 1933 Cushmanidea species Plate 3, figures 1, 2 Cushmanidea anderseni (Puri)? Bold, 1968, p. 53, pl. 4, fig. 10. Not Cytherideis anderseni Puri, 1952b, p. 908, pl. 130, figs. 15-17 (not text-figs. 9, 10). Remarks. — This species differs from C. anderseni by its finely punctate, smaller carapace which has the greatest height more anteriorly. C. cristifera Teeter, 1975 (p. 429, figs. 5n, o, 6f, 7a) is more elongate and smooth. Dimensions. —HVH No. 10516 (left valve), L: 0.48; H: 0.28 (loc. NMB 16176); HVH No. 10515 (right valve), L: 0.48; H: 0.28 (loc. NMB 16156). Material. — Twelve specimens. Occurrence. — Río Cana: Cercado, Gurabo, and Mao formations (Table 1). Rio Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Cushmanidea howei (Bold) Cytherideis howei Bold, 1946, p. 88, pl. 7, figs. 9a-c. Cushmanidea howei (Bold). Bold, 1965b, p. 392, pl. 2, fig. 4; Kus- netzov et al., 1977, p. 52; Bold, 1981, p. 70 (with synonymy), pl. 1, fig. 8, table 3; Bold, 1982, tables 2-4. Holotype. — GIRU S 13009. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 148). Stratigraphic horizon. — Paso Real Formation (lower Miocene). Dimensions. — Carapace, L: 0.98; H: 0.45 (Laguana amber site, No. 7). Material. —Six specimens. Occurrence. — Laguana and Bayaguana amber sites: (Table 5). Distribution. — Upper Oligocene to lower middle Miocene: Caribbean. Family CYTHERIDAE Baird, 1850 Subfamily PERISSOCYTHERIDEINAE Bold, 1963b Genus PERISSOCYTHERIDEA Stephenson, 1938 Perissocytheridea alata Bold Perissocytheridea alata Bold, 1946, р. 84, pl. 14, figs. 4а-с; Sánchez- Arango, 1977, table 2; Bold, 1981, p. 76 (with synonymy), pl. 6, figs. 7a—c, tables 2, 3. Holotype. — GIRU S 13002. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 148). Stratigraphic horizon. — Paso Real Formation, lower Miocene. Dimensions. — Right valve, L: 0.32; H: 0.19 (La- guana amber site, No. 21). Material. — Eight specimens. Occurrence. —Laguana amber site: (Table 5). Distribution. — Lower to middle Miocene: Greater Antilles, northern Lesser Antilles, and Panama. Perissocytheridea cahobensis Bold Plate 2, figures 10-13 Perissocytheridea cahobensis Bold, 1981, p. 73, pl. 6, figs. 4, 5. Perissocytheridea compressa Bold. Bold, 1983, p. 415, fig. 9 [not P. compressa Bold, 1975c]. Holotype. —HVH No. 10015. Type locality. — Loc. M 1182, Riviére Grande, Haiti (Bold, 1981, text-fig. 9). Stratigraphic horizon. — Lower part of the Las Ca- hobas Formation (upper Miocene). Dimensions. — Females, L: 0.45—0.48; H: 0.29—0.30; males, L: 0.52-0.54; Н: 0.30-0.32*; НУН No. 10509 (male), L: 0.53; H: 0.30; W: 0.32 (loc. ММВ 16205). Material. — More than 100 specimens. Remarks. —The degree of ornamentation is quite variable. Some specimens (especially from the Arroyo López section) are smooth and shiny, others are slightly punctate, but in some cases fairly strong reticulation may occur (Cercado Formation, Río Gurabo). The same kind of variation was found in Haiti in the Las Cahobas Formation. There appears to be a slight tendency to- wards stronger reticulation in specimens higher up in the section, and these may resemble P. compressa Bold, 1975c (p. 143, pl. 16, figs. 7-10) from the La Cruz marl (Pliocene) of Cuba. However, they can always be dif- ferentiated from that species by their posteroventral notch. In a study on the variability of punctation of valves in a species of Cyprideis from the Lake of Tunis, Car- * Based on measurements of obvious largest and smallest forms. Sample size unknown. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 29 bonel and Pujos (1982) reported that coarse punctation corresponds to a high ionic ratio of Mg* */Ca* * of the environment, whereas smooth valves occur in an en- vironment with low Mg**/Ca** ratio. Chivas, DeDecker, and Shelley (1983) have pointed out that the Mg/Ca ratio in the ostracode shell increases with temperature. This would agree with Carbonnel’s (1975) Observations on temperature changes influencing the “facteur lisse". In the Cercado Formation, the retic- ulate forms of Perissocytheridea cahobensis are not as- sociated with marine forms (Tables 1, 2), whereas the smooth forms predominate in the upper brackish-water intercalation in the Río Cana (Table 1), where they are associated with marine forms. The same phenomenon is observed in the Arroyo López section (Table 4). Occurrence. — Río Cana: Cercado Formation (Table 1) Río Gurabo: Cercado Formation (Table 2). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene, Hispaniola. Perissocytheridea pumila Bold Plate 2, figure 14 Perissocytheridea pumila Bold, 1975c, p. 142, pl. 19, figs. 3-7. Diagnosis. — Small species of Perissocytheridea with ornamentation of high ridges in a reticulate pattern. Holotype. —HVH No. 9157. Type locality. — Water well in Escuela de Medicina, Universidad de Oriente, Santiago de Cuba, Cuba. Stratigraphic horizon. —Santiago Formation of Franco*. Dimensions. CHVH No. 10512 (right valve, fe- male), L: 0.43; H: 0.29 (loc. NMB 16205). Material. —'Two specimens. Occurrence. — Río Gurabo: Cercado Formation (Ta- ble 4). Distribution. — Upper Miocene to Pliocene: Cuba, Dominican Republic. Perissocytheridea species Remarks. — Rare specimens of perhaps more than one species are found in the Mao Formation of the Río Gurabo section (Table 2); they are badly preserved and may be reworked. Very similar specimens have been found in the Cercado Formation of the Río Cana sec- tion (Table 1). Some appear similar to P. sp. B of Bold, 1975a (p. 611, pl. 59, figs. 13a—c) from the Las Salinas * According to Jakus (1983, p. 77), the Santiago Formation was described by G. L. Franco in Nagy, E., et al., 1976 [not seen]. Jakus includes references to Nagy et al., 1975. [MS] Nuevos datos sobre posibilidades de acumulaciones industriales de bauxitas en Cuba. Arch. Inst. Geol. Paleontol., Acad. Cienc., Cuba, and to Nagy, E., and Coutin, P. D., 1976. Rocas diatomiticas en Oriente. Inst. Geol. Paleontol., Acad. Cienc., Cuba, No. 25, pp. 9-11. The former paper does not appear to have been published, and no reference to the Santiago Formation is made in the latter paper. and Jimaní formations of southern Hispaniola (Plio- cene-?Pleistocene). Other, different specimens occur in the Río Yaque del Norte (Arroyo López): (Table 4). Dimensions. —Left valve (female), L: 0.45; H: 0.28 (loc. NMB 16097, No. 15); left valve (male), L: 0.45; H: 0.27 (loc. NMB 16054, No. 11). Material. — Eleven specimens. Genus PUMILOCYTHERIDEA Bold, 1963b Pumilocytheridea sandbergi Bold Plate 2, figure 15 Pumilocytheridea sandbergi Bold, 1963b, p. 382, pl. 4, figs. 3a-d, pl. 12, figs. 1a-d, 2a, b; Bold, 1964, pls. 8, 11, table 2; Bold, 1966c, pp. 10, 15; Bold, 1966d, p. 23, pl. 2, figs. 6a-d; Baker and Hulings, 1966, p. 114, pl. 1, figs. 2a, b; Bold, 1972a, table 1; Bold, 1973b, p. 344; Bold, 19752, table 7; Bold, 1975c, table 5; Bold, 1975d, table 1; Teeter, 1975, p. 434, figs. 71, m; Bold, 19785, table 9. Holotype. — USNM 684071. Type locality. — Loc. R 11862, Melajo River, north- ern Trinidad. Stratigraphic horizon. — Melajo clay member of Springvale Formation (Pliocene). Dimensions. —HVH 10514 (left valve), L: 0.38: Н: 0.16 (loc. NMB 16978). Material. — About 40 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Upper Miocene to Recent: Caribbe- an. Genus GANGAMOCYTHERIDEA Bold, 1963b Gangamocytheridea? plicata Bold Plate 2, figures 8, 9 Gangamocytheridea? plicata Bold, 1968, p. 53, pl. 7, figs. 4a—c, pl. 9, fig. 5; Bold, 19715, table 5; Bold, 1975a, tables 10, 15; Bold, 1978b, table 9. Diagnosis. — A species of Gangamocytheridea? with plications instead of the normal reticulation. Holotype. —HVH No. 8329. Type locality.—Loc. H 15212, Bluff 1 of Maury (1917) on Río Mao (Bold, 1968, text-fig. 4); Dominican Republic. Stratigraphic horizon. — Gurabo Formation (upper Miocene). Dimensions. —HVH No. 10513 (left valve), L: 0.38; H: 0.22 (loc. NMB 16125). Material. — More than 70 specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Upper Miocene to Recent: Jamaica, Hispaniola, Costa Rica, Mexico. 30 BULLETIN 329 Subfamily PECTOCYTHERINAE Hanai, 1957 Genus MUNSEYELLA Bold, 1957a Munseyella jungi, new species Plate 3, figures 3-5 Munseyella bollii Bold. Bold, 1968, table 7 [not Munseyella bollii Bold, 1966d, p. 21, pl. 2, figs. 2a, b]. Munseyella sp. 2. Saunders, Jung, and Biju-Duval, 1986, table 2. Etymology of пате. —1n honor of Peter Jung, Nat- ural History Museum, Basel, Switzerland. Diagnosis. — A species of Munseyella with weak sur- face ornamentation: some pits in the posterodorsal portion of the carapace and five to six rather wide fossae just behind the anterior rim. Posteroventral por- tion strongly compressed behind the end of a ridge- like swelling in the median part of the valve. Holotype. —HVH No. 10517 (right valve). Paratypes. — HVH No. 10518 (carapace, left valve), HVH No. 10519 (right valve), HVH No. 10520 (left valve). Type locality. —Loc. NMB 16148, Rio Gurabo sec- tion. Stratigraphic horizon. — Gurabo Formation. Description. — Carapace small, elongate rectangular, highest at two-sevenths of the length from the anterior extremity, widest at two-sevenths of the length from the posterior extremity. Anterior end evenly rounded, rimmed, with a slight depression just in front of the greatest height, where the margin is slightly concave over a short distance; dorsal margin gently convex, ventral margin slightly sinuate with a concavity almost in the middle of the margin. Dorsal and ventral mar- gins converge very slightly posteriorly. Posterior end truncate with two rounded tubercles in each valve. Valves strongly compressed posteroventrally. Ornamentation consists of an anterior rim, which somewhat deviates mid-anteriorly from the outer mar- gin; in the space between outer margin and rim some very small tubercles occur, about nine of which are located in the slight concavities created by the some- what sinuate (dentate) shape of the rim. Behind the rim six to seven rather large fossae occur; the interior of the fossae is finely punctate. The rest of the valve is almost smooth, except for a number of fairly large pits in the mid- and posterodorsal portion. Hinge pentodont, typical for the genus; median hinge- element crenulate. In the posterior end the selvage runs down almost vertically from the posterior hinge-ele- ment. Marginal area very wide anteriorly with a wide vestibule. Details are difficult to make out because the inner lamella was broken in all available single valves. Adductor muscle scars form a vertical row of four with the two lower ones almost merging; frontal scar U-shaped, located in front of the two middle adductor scars. Between these three scars lies a fulcral point. A single mandibular scar lies vertically below this. Nor- mal pore canals are few, widely scattered, mostly lo- cated on pore papillae. Dimensions. —HVH No. 10518 (carapace, male), L: 0.31; H: 0.16; W: 0.11 (loc. NMB 16145); HVH No. 10517 (right valve, female, holotype), L: 0.33; H: 0.18 (loc. NMB 16148); HVH No. 10518 (left valve, male), L: 0.32; H: 0.17 (loc. NMB 16145); HVH No. 10519 (right valve, female), L: 0.32; H:0.18 (loc. NMB 16156). Material. — More than 30 specimens. Remarks.— Munseyella bollii, with which this species was originally confused, has a heavier and more reg- ularly-rounded anterior rim, and is not so strongly compressed posteroventrally. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Munseyella saundersi, new species Plate 4, figures 8-14 Munseyella sp. Bold, 1981, p. 71, pl. 5, fig. 12, tables 14, 15. Munseyella sp. 1. Saunders, Jung, and Biju-Duval, 1986, table 2. Etymology of name.—In honor of J. B. Saunders, Natural History Museum, Basel, Switzerland. Diagnosis. — A species of Munseyella with a contin- uous ridge from the anterior rim, along the dorsal mar- gin to the posterior rim; V-shaped posterodorsal ridge; depressed posteroventral area. Holotype. —H VH No. 10521 (carapace, female). Paratypes. —HVH No. 10520 (left valve, female), HVH No. 10522 (carapace, female), HVH No. 10523 (left valve, male), HVH No. 10524 (right valve, male), HVH No. 10525 (left valve, female), HVH No. 10526 (right valve, female). Type locality. — Loc. NMB 160639, Río Gurabo sec- tion. Stratigraphic horizon. —Mao Formation (Pliocene). Description. — Carapace elongate subrectangular to subtriangular, highest at the anterior cardinal angle, close to the anterior extremity. Sexually dimorphic: dimensions of males and females are similar, but the males are vertically compressed in the posterior part. Anterior end blunt, anterior margin regularly rounded with a heavy rim, which continues along the dorsum and which bears a few short, blunt spines; dorsal mar- gin almost straight, very slightly convex in the left valve, straight in the right; ventral margin almost straight, converging gently towards the dorsal poste- riorly, more strongly in the male; posterior end steeply, almost vertically, truncate with two short, blunt spines: the lower one located near the posteroventral corner, where the dorsal ridge, continuing downward as a pos- terior rim, meets the ventral margin; in the left valve this ridge makes a more regular curve than in the right one. А broad ridge runs from near the ventral margin DOMINICAN REPUBLIC NEOGENE. 7: BOLD 31 at one-third of the length from the posterior extremity, obliquely forward and upward in the direction of the middle of the anterior margin. The valves are laterally compressed behind and above this ridge, forming a depressed area that is bordered dorsally by a broad, V-shaped, posterodorsal ridge and on the posterodor- sal side by the posterior rim. Interior typical for the genus. Marginal area with a wide loop of the line of concrescence in the anterior end. Hinge pentodont. Dimensions. — HVH No. 10520 (left valve, female), L: 0.27; W: 0.14 (loc. NMB 15982); HVH No. 10521 (carapace, female, holotype), L: 0.30; H: 0.17; W: 0.11 (loc. NMB 16039); HVH No. 10522 (carapace, fe- male), L: 0.29; H: 0.16; W: 0.11 (loc. NMB 16039); HVH No. 10523 (left valve, male), L: 0.28; H: 0.16 (loc. NMB 15982); HVH No. 10524 (right valve, male), L: 0.30; H: 0.15 (loc. NMB 16030); HVH No. 10525 (left valve, female), L: 0.27; H: 0.15 (loc. NMB 16090); HVH No. 10526 (right valve, female), L: 0.30; H: 0.16 (loc. NMB 16039); HVH No. 10527 (left valve, fe- male), L: 0.31; H: 0.17 (St. Marc £1 borehole, Haiti). Material. —Seventy-four specimens. Remarks. —This species could be confused with the somewhat larger M. bermudezi Bold, 1966d (p. 22, pl. 2, figs. la, b), but differs by its V-shaped posterodorsal ridge. Occurrence. — Rio Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Distribution. — Pliocene: Hispaniola. Munseyella, new species Plate 4, figure 15 Diagnosis. — A small species of Munseyella, elon- gate-rectangular in shape, distinguished by a straight dorsal ridge from the anterior cardinal angle to below the posterior cardinal angle, diverging from the dorsal margin, continuing posteriorly in a curve, more or less parallel to the posterior margin, and breaking up in a series of short, en-echelon ridges, parallel to the ventral margin. Dimensions. —HVH No. 10736 (carapace), L: 0.34; H: 0.16; W: 0.13 (loc. NMB 17189). Material. — One specimen. Occurrence. — Loc. NMB 17189, Río Yaque del Norte (López): (Table 4). Subfamily CYTHEROMORPHINAE Mandelstam, 1960 Genus HEINIA Bold, 1985 Heinia species aff. H. howei Bold Plate 3, figure 6 Heinia sp. aff. H. howei Bold, 1985, p. 6, pl. 1, figs. 6.6, 6.8. Reference material. —HVH No. 9544. Reference locality. — Loc. NMB 16039, Río Gurabo. Stratigraphic horizon. — Mao Formation (Pliocene). Dimensions. — НУН No. 9544 (left valve), L: 0.26; H: 0.13 (loc. NMB 16039). Material. — Six specimens. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Pliocene: Dominican Republic, Cos- ta Rica. Family TRACHYLEBERIDIDAE Sylvester-Bradley, 1948 Subfamily HEMICYTHERINAE Puri, 1953a Genus RADIMELLA Pokorny, 1969 Radimella confragosa (Edwards) Plate 4, figure 1 Hemicythere confragosa Edwards, 1944, p. 518, pl. 86, figs. 23-26. Mutilus confragosus (Edwards). Bold, 1968, tables 4—13, 15 (part). Radimella confragosa (Edwards). Bold, 19755, p. 697, pl. 1, figs. 1- 4, 16, 17, text-figs. 3a, b (with synonymy); Bold, 1975c, p. 145, pl. 17, fig. 1; Bold, 19754, table 1; Benson, 1976, pp. 40-52; Hazel, 1977, fig. 6a; Furrazola Bermüdez et al., 1978, p. 40 (table); Bold, 1981, table 15; Bate, Whittaker, and Mayes, 1981, p. 24, figs. 16F, С; Bold, 1983, fig. 1. Radimella ex gr. confragosa (Edwards). Bold, 1978b, tables 1, 8, 9 (part). Diagnosis. — А species of Radimella with pro- nounced anterior cardinal angle, slightly bent dorsal margin; dorsal ridge flush with posterodorsal margin. Fossae of unequal size. Dorsal ridge system pro- nounced and sloping rather steeply forward. Holotype. — USNM 559423. Type locality. — Pit on west side of US Highway 74, north side of Lumber River near Lumberton, North Carolina. Stratigraphic horizon. — Duplin marl (Pliocene). Dimensions. — НУН No. 10534 (left valve), L: 0.67; H: 0.42 (loc. NMB 17011). Material. — Over 600 specimens. Occurrence. — Río Cana: Cercado, Gurabo and Mao formations (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Distribution. — Upper Miocene to Pleistocene (?Re- cent): U. S. Atlantic and Gulf Coasts, Mexico, Costa Rica, Colombia, Venezuela, Trinidad, Greater An- tilles. Radimella confragosa (Edwards) form A Plate 4, figure 2 Mutilus confragosus (Edwards). Bold, 1968, tables 4-10 (part). Radimella confragosa (Edwards) form A. Bold, 1975b, p. 697 (with synonymy), pl. 1, figs. 8, 9 [not fig. 10 = Radimella ovata, n. sp.]; Bold, 1975c, p. 146, table 4; Bold, 1981, tables 12, 15. 32 BULLETIN 329 Diagnosis. —A species of Radimella in which the dorsal ridge diverges posteriorly from the posterodor- sal margin and projects over it; dorsal margin strongly bent, anterior cardinal angle strongly pronounced. Reference material. – НУН No. 9100. Reference locality. — Loc. PR 3, Ponce Cement Quar- ry, Puerto Rico (Bold, 1969, p. 118). Stratigraphic horizon. — Ponce Formation s. s. (Plio- cene). Dimensions. — НУН No. 10535 (left valve), L: 0.68; H: 0.40 (loc. NMB 16180). Material. — Over 80 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Distribution. — Upper Miocene to Recent: Greater Antilles. Radimella ovata, new species Plate 4, figures 3-5 Mutilus confragosus (Edwards). Bold, 1968, tables 4—7, 9, 10 (part). Radimella sp. 1. Bold, 1975b, p. 698, pl. 1, figs. 11, 13, 14 (with synonymy). Radimella confragosa (Edwards) form A. Bold, 19756, pl. 1, fig. 10. Radimella ex gr. confragosa (Edwards). Bold, 1978b, table 9 (part). Diagnosis. — А species of Radimella with subdued anterior cardinal angle, convex dorsal margin, dorsal ridge parallel to and below the posterodorsal margin; fossae of about equal size throughout; posterodorsal area of the reticulum wide. Holotype. — НУН No. 9102 (left valve) (Bold, 19755, pL hes. Lb. Paratype. — HVH No. 10538 (two carapaces), HVH No. 10539 (left valve). Type locality. — Loc. Rutsch 124, Savaneta River near Gran Couva, Trinidad. Stratigraphic horizon. —Savaneta glauconitic clay member of the Springvale Formation (lower Pliocene). Description. — Carapace ovate to subquadrangular in side view, highest at anterior cardinal angle at one- third of the length from the anterior extremity. An- terior margin obliquely-rounded, dorsal margin gently convex, ventral margin convex, posterior end angled subventrally with a steep and concave posterior margin in the dorsal part; posterior cardinal angle obtuse but well marked. Ornamentation with the reticulate pat- tern typical of Radimella. Among the ridges the fol- lowing are more pronounced: anterior rim, ventrally parallel to the anterior margin, diverging slightly up- wards and including the small eye-tubercle; just be- yond the eye-spot it becomes parallel to the dorsal margin to just below the posterior cardinal angle, then turns sharply down and continues straight in the di- rection of the posteroventral angle; ventral ridge al- most straight from the ventral part of the anterior ridge backward, reaching the ventral margin at a point one- third of the length from the posterior end; postero- dorsal ridge curved, well below the dorsal margin; four median, longitudinal ridges are bunched together in the center of the valves; the third from above curves upward in the direction of the posterior cardinal angle and forms with the oblique posterior ridge a wide V in which the posterodorsal group of meshes is located. Interior typical for the Radimella group. Dimensions. — НУН No. 9103 (left valve), L: 0.58; H: 0.37 (Cubagua £2, core 10, Venezuela); HVH No. 9102 (left valve, holotype), L: 0.63; H: 0.43 (loc. Rutsch 124, Trinidad); HVH No. 10536 (right valve), L: 0.61; H: 0.39 (loc. NMB 16156); HVH No. 10537 (left valve), L: 0.63; H: 0.38 (loc. NMB 16156); HVH No. 9097 (left valve), L: 0.63; H: 0.44 (loc. H 15211). Material. — About 40 specimens. Remarks. — This species shows similarity to species of the genus Malzella Hazel, 1983 by its subdued an- terior cardinal angle and curved dorsal margin. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to lower Pliocene: Hispaniola, Trinidad, Venezuela, Costa Rica. Genus PROCYTHEREIS Skogsberg, 1928 Procythereis? deformis (Reuss) Cypridina deformis Reuss, 1850, p. 69, pl. 9, figs. 25a, b. Cythere deformis (Reuss). Bosquet, 1852, p. 82, pl. 4, fig. 4. Brachycythere deformis (Reuss). Bold, 1946, p. 107, pl. 13, figs. 2a-d. Hemicythere deformis (Reuss). Keij, 1957, p. 123, pl. 18, figs. 5-7. Aurila deformis (Reuss). Bold, 1957b, p. 239 (part, not pl. 1, fig. 8). Procythereis? deformis (Reuss). Bold, 1965b, p. 396, pl. 5, figs. 4a, b; Bold, 1972b, p. 427, tables 1, 2, 5; Bold, 1973b, p. 164, pl. 1, figs. 4a—c; Sánchez-Arango, 1977, table 2; Kusnetzov et al., 1977, p. 52; Furrazola Bermüdez et al., 1978, p. 40; Bold, 1978b, table 10; Bold, 1981, tables 2-5, 8, 10, 11; Bold, 1982, table 2. Holotype. — Uncertain. Type locality. — Nussdorf, Austria. Stratigraphic horizon. — Badenian, middle Miocene. Dimensions. — Сагарасе, L: 0.74; H: 0.46; W: 0.45 (Laguana amber site, No. 15). Material. —Two specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Laguana amber site: (Table 5). Distribution. — Lower to upper Miocene: Antilles, Central America. Procythereis? howei Bold Brachycythere deformis (Reuss). Bold, 1946, p. 107 (part, not pl. 13, figs. 2a-d). Procythereis sp. Bold, 1969, p. 121, pl. 2, fig. 11, text-fig. 4a. Procythereis? howei Bold, 1975c, p. 149, pl. 19, figs. 11-14. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 33 Holotype. —HVH No. 9141 (Bold, 1975c, pl. 19, fig. 11). Type locality. — Loc. CU 39, Santiago de Cuba (Bold, 1975с, p. 135, text-fig. 14). Stratigraphic horizon. — Basal La Cruz Formation (uppermost Miocene to Pliocene). Dimensions. —HVH No. 10808 (carapace), L: 0.64; H: 0.40; W: 0.40 (loc. TU 1447). Material. — Two specimens. Occurrence. — Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Pleistocene: Greater Antilles. Genus AURILA Pokorny, 1955 Aurila auricula (Teeter) Plate 4, figure 6 Aurila, n. sp. Bold, 1975c, p. 146, pl. 17, figs. 2-8. Hemicythere? auricula Teeter, 1975, p. 437, figs. 7u, 8f, 9h, i. Holotype. —HVH No. 8994. Type locality. —Loc. 315 of Teeter (1975), off the coast of Belize (10 ft water depth). Stratigraphic horizon. — Recent. Diagnosis. — А species of Aurila, characterized by а conspicuous angulation in the middle of the dorsal margin of both valves. Dimensions. – НУН No. 10558 (left valve), L: 0.63; H: 0.30 (loc. NMB 17012). Material. — Nine specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Distribution. — Pliocene to Recent: Cuba, Domini- can Republic; Recent: Belize. Aurila macropunctata (Bold) Brachycythere trigonalis (Jones) var. macropunctata Bold, 1946, p. 108, pl. 13, figs. 12a—. Hemicythere amygdala Stephenson. Puri and Hulings, 1957, p. 174; Puri, 1960, p. 129, text-figs. 31, 32 [not Hemicythere amygdala Stephenson, 1944, p. 158, pl. 28, figs. 8, 9]. Aurila amygdala (Stephenson). Benson and Coleman, 1963, p. 36, Dl. 8, figs. 6, 8, 9, pl. 9, fig. 22. Aurila aff. convexa (Baird). Bold, 1964, p. 10. Aurila sp. aff. A. cicatricosa (Reuss). Bold, 1966c, p. 26, pl. 3, figs. 6a, b; Bold, 1969, p. 122, pl. 2, figs. 6a, b; Bold, 1973a, table 1; Bold, 1975a, table 9; Bold, 1975d, table 1; Bold, 1981, p. 80, pl. 4, figs. 4a, b, tables 9, 10. Aurila sp. cf. A. amygdala (Stephenson). Kontrovitz, 1978, p. 143, її. 2, ig 3. Holotype. — GIRU S 13050. Type locality.—Loc. T 1439, 2 km SW of Banes along road to Santa Isabel de Nipe, just west of Antilles, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (— Jücaro Formation of Kozary, 1957, Jakus, 1983, p. 62). Dimensions. — GIRU S 13050 (carapace, holotype), L: 0.67; H: 0.46; W: 0.28. HVH No. 7914 (carapace), L: 0.66; H: 0.44; W: 0.35 (loc. Caiguire 2, Cumaná Formation, Pleistocene, Venezuela); HVH No. 8744 (carapace), L: 0.66; H: 0.43; W: 0.35 (loc. PR 6, Ponce Cement Quarry, Puerto Rico); HVH No. 10809 (left valve), L: 0.64; H: 0.42 (Cul-de-Sac borehole #12, Morne Delmas Formation, Haiti; HVH No. 10027 (left valve), L: 0.63; H: 0.43 (loc. K 259, Riviére Fé- liciane, Las Cahobas Formation, Haiti; HVH Мо. 10599 (carapace), L: 0.59; H: 0.40; W: 0.33 (loc. TU 1445). Remarks. —This species is similar in general ap- реагапсе to 4. amygdala (Stephenson), but is higher, has a less convex dorsal margin and a stronger antero- ventral indentation in the right valve. In dorsal view it has less convex sides and is a little more angular at the greatest width. Material. — Ten specimens. Occurrence. — Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Recent: Venezue- la; Pliocene: Puerto Rico; upper Miocene to Pliocene: Hispaniola; upper Miocene: Cuba; Recent: Gulf of Mexico. Aurila amygdala (Stephenson) Hemicythere amygdala Stephenson, 1944, p. 158, pl. 28, figs. 8, 9. Aurila amygdala (Stephenson). Butler, 1963, p. 73, pl. 2, fig. 16, pl. 6, fig. c; Bold, 1965b, p. 394, pl. 5, fig. 10; Bold, 1970b, tables 1, 3, 5; Bold, 1971a, table 2; Bold, 1972a, tables 2, 3; Bold, 1972b, p. 427, tables 1—5, 7; Bold, 1973a, table 1; Poag, 1974, p. 59, pl. 6, fig. 5; Bold, 1975d, table 4; Kusnetzov et al., 1977, p. 52; Bold, 1981, tables 2, 4, 11; Bold, 1982, tables 2, 4. Holotype. – НУН No. 2359. Type locality. —Stanolind well No. B-2, core at 5876— 5880 ft, Jefferson County, Texas. Stratigraphic horizon. — Anahuac Formation (lower Miocene). Dimensions. —HVH No. 10810 (carapace), L: 0.59; H: 0.41; W: 0.34 (loc. NMB 17189). Material. — Fourteen specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Distribution. — Upper Oligocene to middle Miocene: Caribbean and Gulf Coast. Aurila galerita Bold Brachycythere cicatricosa (Reuss). Bold, 1946, p. 106, pl. 13, figs. la-f [not Cypridina cicatricosa Reuss, 1850, p. 67, pl. 9, fig. 21]. Aurila trigonula (Jones). Bold, 1957b, p. 239, pl. 4, fig. 6; Bold, 1958, table 1 [not Cythere trigonula Jones, 1857, p. 25, pl. 3, figs. 1а— h]. Aurila galerita Bold, 1965b, p. 395, pl. 5, figs. 9a, b; Bold, 1970b, table 1; Bold, 1971a, table 2; Bold, 19725, p. 418, tables 1-5; Bold, 1973a, p. 155, table 1; Bold, 1976, table 4; Sánchez-Arango, 1977, 34 BULLETIN 329 table 2; Kusnetzov et al., 1977, p. 53; Bold, 1978b, table 10; Bold, 1981, pp. 14, 18, 103, 108, tables 2, 3, 10; Bold, 1982, table 2. Holotype. — USNM 648995 (Bold, 1965b, pl. 5, figs. 9a, b). Type locality. —Loc. 71, north of San Sebastian, Puerto Rico (Bold, 1965b, text-fig. 1). Stratigraphic horizon. — Cibao Formation (middle Мпосепе). Dimensions. —HVH No. 10811 (carapace), L: 0.63; H: 0.40; W: 0.35 (Laguana amber site). Material. — About 50 specimens. Occurrence. —Rio Yaque del Norte (López): (Table 4). Laguana and Bayaguana amber sites: (Table 5). Distribution. — Lower to upper Miocene: Antilles, Central America. Genus CAUDITES Coryell and Fields, 1937 Caudites medialis Coryell and Fields Plate 3, figure 7 Caudites medialis Coryell and Fields, 1937, p. 11, pl. 2, figs. 12а-с; Bold, 1966e, p. 360, pl. 1, fig. 7, table 1; Bold, 1967a, table 1; Bold, 19675, p. 311, pl. 1, fig. 4, table 1; Bold, 1968, p. 19, pl. 4, figs. la, b, tables 6, 8-10; Bold, 1981, p. 19. Caudites sp. aff. C. sellardsi (Howe and Neill). Bold, 1966a, p. 7. Holotype. — AMNH 24806. Type locality. — Cativa, Panama. Stratigraphic horizon. —Gatun Formation (upper Miocene). Reference material. —HVH No. 8223. Reference locality. — Loc. P 12, on side road south of transisthmus highway, 2 km west of Cativa, Pana- ma. Stratigraphic horizon. — Gatun Formation (upper Miocene). Dimensions. —HVH No. 10540 (carapace), L: 0.52; H: 0.28; W: 0.19 (loc. NMB 16964). Material. — More than 30 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Distribution. — Middle Miocene to lower Pliocene: Panama, Costa Rica, Colombia, Jamaica, Dominican Republic. Caudites nipeensis Bold Plate 3, figure 8 Caudites nipeensis Bold, 1946, p. 105, pl. 14, fig. 1; Keij, 1954, p. 224, pl. 4, fig. 14, pl. 6, figs. 11a-d; Bold, 19575, p. 239; Bold, 1963b, p. 386, pl. 6, figs. 3a, b; Bold, 1964, table 2; Baker and Hulings, 1966, p. 114, pl. 1, fig. 5; Bold, 1966b, p. 5; Bold, 1966c, tables 1, 2; Bold, 1966e, p. 361, table 1; Bold, 1968, tables 7-10; Bold, 1969, table 1; Bold, 1970b, p. 47, pl. 2, fig. 12; Bold, 19715, tables 2-5; Bold, 1972a, table 2; Bold, 1973a, table 2; Bold, 1973b, p. 334; Teeter, 1975, p. 443, figs. 10d, 11e; Bold, 1975c, tables 2, 4, 5; Bold, 1978b, tables 8, 9; Bold, 1981, p. 108, table 13. Holotype. — GIRU S 13040. Type locality. —Loc. T 1451, outcrop on shore of Bahia de Nipe, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (= Jücaro Formation of Kozary, 1957, Jakus, 1983, p. 62). Diagnosis. — A species of Caudites with a two-pronged dorsal ridge. Dimensions. —HVH No. 10541 (carapace), L: 0.56; H: 0.30; W: 0.21 (loc. NMB 16125). Material. — More than 80 specimens. Remarks. — Two specimens found in the López part of the Río Yaque del Norte section have the ventral ridge split up into two nodules, and may belong to a form ancestral to C. nipeensis. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (?López, Arroyo López, Santiago): (Table 4). Distribution. — Middle Miocene to Recent: Carib- bean. Caudites rectangularis (Brady) Plate 3, figures 9, 10 Cythere rectangularis Brady, 1869, p. 153, pl. 16, figs. 13, 14. Caudites leguminosus Bold, 1963c, p. 387, pl. 6, figs. 2a, b. Caudites rectangularis (Brady). Bold, 1966a, p. 46, pl. 4, figs. 2а, b; Bold, 1968, tables 6, 9; Bold, 19715, pl. 3, figs. 8a-c, tables 3 (part), 4 (part) [not pl. 3, figs. 8d-f = Caudites highi Teeter, 1975, p. 445, figs. 10g, 114-0; Bold, 1975c, tables 2, 5; Bold, 1978b, table 9; Bold, 1981, tables 14, 15. Holotype. —Hancock Museum, Newcastle-upon- Tyne, England, U. K. Type locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Reference material. – НУН No. 8251. Reference locality. — Colón Harbor, Panama. Dimensions. —HVH No. 10542 (carapace), L: 0.54; H: 0.36; W: 0.15 (loc. NMB 16973). Material. —'Ten specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao (Table 3). Distribution. — Upper Miocene to Recent: Greater Antilles, Trinidad, Costa Rica; Recent: Panama, Be- lize. Caudites sacer Bold Caudites medialis Coryell and Fields. Bold, 1957b, p. 329, pl. 3, fig. 6 [not Caudites medialis Coryell and Fields, 1937, p. 11, pl. 2, figs. 12a—c]. Caudites, n. sp. aff. C. medialis Coryell and Fields. Bold, 1971a, table 2. Caudites sacer Bold, 1970b, p. 46, pl. 1, figs. 3a, b, tables 1, 2; Bold, 1981, table 2. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 35 Holotype. —HVH Мо. 8708 (Bold, 19705, рі. 1, fig. 3a). Type locality. — Loc. SM-4, Mullett Pond Bay, St. Martin, Lesser Antilles. Stratigraphic horizon. — Lowlands Formation (lower middle Miocene). Dimensions. — Сагарасе, L: 0.55; Н: 0.28; W: 0.18 (loc. NMB 17189, No. 20). Material. — Three specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Distribution. — Upper lower to lower middle Mio- cene: Hispaniola, St. Croix, St. Martin, Trinidad. Caudites species In the Gurabo and Mao formations of the Río Gu- rabo section (Table 2), Caudites nipeensis is accom- panied by specimens that could not be identified with certainty as its molts. Therefore these have been re- corded as Caudites sp. Genus ORIONINA Puri, 1954 Orionina serrulata (Brady) Orionina serrulata (Brady). Bold, 1963a, p. 44, pl. 5, figs. 1—6, text- fig. 5, figs. 6, 7, 8a-d (with synonymy); Bold, 1963c, p. 386, pl. 6, fig. 7; Bold, 1964, table 2; Bold, 1966c, tables 1, 2; Bold, 1966d, р. 47, pl. 1, fig. 8; Bold, 1966e, table 1; Baker and Hulings, 1966, p. 114, pl. 1, fig. 9; Bold, 1968, table 11 (not tables 4-6, 9, 10 = О. vaughani); Bold, 19715, tables 3-5, 6 (part); Bold, 1972a, table 2; Bold, 1975c, p. 147, tables 4, 5; Teeter, 1975, p. 447, figs. 11h, 12a; Bold, 19785, table 9; Bold, 1981, table 14; Breman, 1982, p. 237. Orionina bermudae (Brady). Swain and Gilby, 1974, p. 328 (part), pl. 32, fig. 24 [not pl. 31, figs. 14a, b, pl. 35, fig. 7, text-fig. 17C]. Holotype. — Hancock Museum, Newcastle-upon- Tyne, England, U. K. Type locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Reference material. —HVH No. 8270. Reference locality. — Colón Harbor, Panama. Dimensions. — Left valve, L: 0.62; H: 0.33 (loc. NMB 16039, No. 41). Occurrence. — Río Gurabo: Mao Formation (Table 2). Río Mao (Table 3). Distribution. —Pliocene to Recent: Hispaniola, Ja- maica, Puerto Rico, ?Costa Rica; upper Miocene to Recent: Trinidad, Venezuela, Colombia, Panama. Orionina vaughani (Ulrich and Bassler) Plate 4, figure 7 Orionina vaughani (Ulrich and Bassler). Bold, 1963a, p. 41, pl. 3, figs. 1-5, text-fig. 5, figs. 1-4 (with synonymy); Bold, 1963b, p. 386, pl. 6, fig. 8; Puri, 1963, p. 376; Bold, 1964, table 2; Hall, 1965, p. 35; pl. 7, figs. 4, 5, 7; Bold, 1965b, p. 395, table 1; Bold, 1966f, p. 139, pl. 45, fig. 3; Swain, 1968, p. 21, pl. 4, figs. 4а-с, text-fig. 19; Puri and Vanstrum, 1969, pp. 74, 76, 78; Bold, 1970b, p. 40, table 1; Bold, 1972a, table 2; Bold, 1972b, p. 428; Bold, 1973a, table 1; Swain, 1974, p. 35, pl. 7, fig. 17, pl. 12, figs. 4a— h; Lubimova and Sánchez-Arango, 1974, pl. 15, figs. 4, 4a; Bold, 1975d, table 2; Hazel, 1977, fig. 8a; Bold, 1978b, table 2; San- guinetti, 1979, p. 149, pl. 6, figs. 5а-с, pl. 13, figs. 2a, b; Forester, 1980, p. 19; Bold, 1981, table 11; Bold, 1982, table 2; Hazel, 1983, РОА траје Orionina serrulata (Brady). Bold, 1968, tables 4—6, 10 (not table 9 = O. serrulata). Holotype. — USNM 35422 [reported broken (Bold, 1963a), and lost (Forester, 1980)]. Type locality. — Only reported as Chesapeake group (Miocene) by Ulrich and Bassler (1904). Reference material. —HVH No. 1073. Reference locality. — Loc. K. E. Young 34, near Ward, Florida. Stratigraphic horizon. — Choctawhatchee Stage (late Miocene). Dimensions. —ÉHVH No. 10560 (right valve, fe- male), L: 0.70; H: 0.41 (loc. NMB 16964); HVH No. 10812 (left valve, male), L: 0.81; H: 0.43 (loc. TU 1447). Material. — About 50 specimens. Remarks. — Cronin (written commun., 1985) sug- gests that O. vaughani and O. serrulata could represent a single species that sometimes may have branching marginal pore canals (O. serrulata) and sometimes straight and simple ones (O. vaughani). I think that this is unlikely, because only the form with branching pore canals has been found in Recent deposits. It is restricted to the Caribbean biogeographic province (Bold, 1970a), while the Recent species with straight pore canals (O. bradyi Bold, 1963a) replaces O. vaughani on the Atlantic coasts and the northern fringes of the Caribbean Province. Inside the Caribbean it has only been found on the Nicaragua, Belize and Cuban shelves. Occurrence. — Rio Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao (Table 3). Río Yaque del Norte (Baitoa, López, Arroyo López): (Table 4). Distribution. — Lower Miocene to upper Miocene: Trinidad, Venezuela, Panama, Colombia; lower Mio- cene to Pliocene: Hispaniola; lower Miocene to Pleis- tocene: Cuba, North America, ?Mexico. Genus QUADRACYTHERE Hornibrook, 1952 Quadracythere howei (Puri) Plate 3, figure 11 Hemicythere howei Puri, 1953a, p. 176, pl. 1, figs. 7-9; Puri, 1954, Decoy. Hemicythere bichensis Bold, 1963b, p. 385, pl. 6, figs. 9a, b. Quadracythere bichensis (Bold). Bold, 1968, p. 57, pl. 5, fig. 2, tables 4—6; Bold, 1969, table 1; Bold, 1975a, tables 9, 10; Bold, 1975d, table 1; Bold, 1981, tables 4, 6. Quadracythere fuenmayorensis Rodriguez, 1969, p. 197, pl. 3, figs. 9, 10, text-fig. 16. 36 BULLETIN 329 Holotype. —HVH No. 2473. Type locality. — Loc. 27 of Puri (1953a), Washington County, Florida. Stratigraphic horizon. —Jackson Bluff Formation, Arca Zone (upper Miocene). Dimensions. — HVH No. 10544 (left valve), L: 0.56; H: 0.33 (loc. NMB 16176). Material. — Fourteen specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Ya- que del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Pleistocene: Flor- ida, Hispaniola, Jamaica, Puerto Rico, Trinidad, Ven- ezuela. Quadracythere producta (Brady) Plate 3, figure 12 Cythere producta Brady, 1868, p. 378, pl. 59, figs. 7a—c. Quadracythere producta (Brady). Bold, 1968, p. 57, pl. 5, figs. la, b, tables 2, 9, 11; Bold, 1969, table 1; Bold, 19715, tables 3-5; Bold, 1975a, tables 2, 6, 9; Bold, 1975c, tables 2, 4, 5; Teeter, 1975, p. 441, figs. 9m, n, 10b; Sánchez-Arango, 1977, p. 23, fig. 2; Kus- netzov et al., 1977, p. 53; Furrazola Bermüdez et al., 1978, p. 40 (table); Bold, 1978b, tables 2, 9; Bold, 1981, p. 107; Bold, 1983, fig. 7. Holotype. — Hancock Museum, Newcastle-upon- Tyne, England, U. K. Type locality. — Honduras, shallow water in calcar- eous sand. Stratigraphic horizon. — Recent. Dimensions. —HVH No. 10545 (right valve), L: 0.55; H: 0.32 (loc. NMB 16097). Material. — Fourteen specimens. Occurrence. — Río Gurabo: Mao Formation (Table 2). Río Mao: (Table 3). Distribution. — Pliocene to Recent: Greater Antilles, Costa Rica, Mexico; Recent: Honduras and Belize. Quadracythere brachypygaia Bold Quadracythere brachypygaia Bold, 1965b, p. 396, pl. 6, figs. 6a, b; Bold, 1972b, tables 1, 2, 4; Bold, 1982, tables 2, 3. Holotype. — HVH No. 7752 (Bold, 1965b, pl. 6, figs. 6a, b). Type locality. — Loc. 50, N. of San Sebastian, Puerto Rico (Bold, 1965b, text-fig. 1). Stratigraphic horizon. — Upper part of San Sebastian Formation (Oligocene). Dimensions. — Left valve, L: 0.51; H: 0.33 (loc. NMB 17193, No. 4). Material. — One specimen. Occurrence. —Río Yaque del Norte (Baitoa): (Table 4). Distribution. — Upper Oligocene to lower Miocene: Hispaniola, Puerto Rico, Panama. Genus JUGOSOCYTHEREIS Puri, 1954 Jugosocythereis pannosa (Brady) Plate 3, figure 13 Cythere pannosa Brady, 1869, p. 154, pl. 10, figs. 1, 2. Jugosocythereis pannosa (Brady). Bold, 19665, p. 14; Bold, 1966d, p. 47, pl. 1, fig. 11; Bold, 1971b, table 1; Benson, 1972, pl. 2, fig. 1; Maddocks, 1974, p. 210, pl. 5, figs. 1, 5, 6, 8, 9; Bold, 1975c, tables 2, 4, 5; Teeter, 1975, p. 499, figs. 11m, n, 12d; Holden, 1976, p. 25, pl. 3, figs. 17-21, pl. 12, fig. 14; Bold, 1978a, table 2; Bold, 1978b, table 9; Bold, 1981, p. 110, table 10. Holotype. — Hancock Museum, Newcastle-upon- Tyne, England, U. K. Type locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Reference material. —HVH No. 8281. Reference locality. — Loc. P 16, Colón Harbor, Pan- ama (Bold, 19669). Diagnosis. — A species of Jugosocythereis with high- crested system of median ridges, pronounced dorsal and ventral ridge. Dimensions. —HVH No. 10546 (right valve), L: 0.98; H: 0.66 (loc. NMB 16125). Material. — About 20 specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Cercado, Gurabo, and Mao forma- tions (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Caribbe- an. Jugosocythereis vicksburgensis (Howe and Law) Cythereis (?) vicksburgensis Howe and Law, 1936, p. 34, pl. 4, fig. 4, pl. 5, figs. 1, 2; Bold, 1946, p. 69, pl. 10, fig. 5. Hermanites pannosa (Brady). Bold, 1957b, p. 240, pl. 2, fig. 2 [not Cythere pannosa Brady, 1869, p. 154, pl. 10, figs. 1, 2]. Jugosocythereis vicksburgensis (Howe and Law). Bold, 1960, p. 169, table 3; Bold, 1965b, p. 397, pl. 5, figs. 2a, b; Deboo, 1965, pl. 13, fig. 18; Laurencich, 1969, p. 498, pl. 1, fig. 3; Bold, 1970b, tables 1, 2, 4; Bold, 1972a, tables 2, 3, 4; Bold, 1972b, p. 428, tables 1, 2, 4; Benson, 1972, pl. 2, fig. 2; Poag, 1974, p. 668, pl. 9, fig. 10, pl. 10, figs. 1, 2; Bold, 1975d, tables 3, 4; García-Mendez, 1978, table 1; Furrazola Bermüdez et al., 1978, p. 40; Bold, 19785, tables 3, 5, 6; Hazel, Mumma, and Huff, 1980, pl. 6, figs. 4, 5; Bold, 1981, p. 103, tables 2, 3, 11, 13. Quadracythere boldi Butler, 1963, p. 65, pl. 4, figs. 7, 8. Trachyleberis aff. T. vicksburgensis (Howe and Law). Lubimova and Sánchez-Arango, 1974, pl. 13, figs. 5, 5a. Quadracythere vicksburgensis (Howe and Law). Howe, 1977, pl. 1, Пру 2. Diagnosis. — This species differs from the preceding one by its less complex structure, while the ridges of the reticulation are wider and usually lower. Holotype. —HVH No. 1732 (Howe and Law, 1936, pl. 4, fig. 4). Type locality. —H VH loc. 2, Byram, Mississippi (Howe and Law, 1936, p. 12). Stratigraphic horizon. — Byram marl (Oligocene). DOMINICAN REPUBLIC NEOGENE. 7: BOLD 37 Dimensions. —Left valve, juvenile, L: 0.50; H: 0.28 (loc. NMB 17186, No. 6). Material. — Three specimens. Remarks. — J. vicksburgensis grades morphologically into its descendant J. pannosa, and it has not yet been established at which level (probably somewhere in the upper Miocene) the change takes place. Especially im- mature molts cannot be assigned with any degree of certainty to one species or the other, which is the reason why two immature specimens in the lower part of the Arroyo López section (Table 4), have been question- ably assigned to J. vicksburgensis. Occurrence.—Río Yaque del Norte (López, ques- tionably Arroyo López, two juveniles): (Table 4). Distribution. — Eocene to middle Miocene (?upper Miocene): Caribbean, Gulf Coast. Subfamily THAEROCYTHERINAE Hazel, 1967a Genus HERMANITES Puri, 1955 Hermanites hornibrooki (Puri) Plate 3, figure 18 Hermanites aff. thoracophora (Bold). Keij, 1954, p. 223, pl. 4, figs. 12a, b. Hermanites aff. hutchisoni Bold. Bold, 1957b, p. 240. Hermanites sp. 2. Drooger and Kaasschieter, 1958, p. 240. Bradyleya hornibrooki Puri, 1960, p. 123, pl. 1, figs. 9, 10 (not text- figs. 27, 28). Hermanites hornibrooki (Puri). Bold, 1966b, p. 5; Bold, 1966d, pl. 1, fig. 14; Bold, 1968, p. 66, pl. 4, fig. 3; Bold, 19715, tables 3-5; Bold, 1975c, tables 4, 5; Teeter, 1975, p. 419, figs. 11a, 12a; Bold, 1978b, table 9; Bold, 1983, fig. 2. Diagnosis. — A small species of Hermanites with well- developed subcentral tubercle and dorsal and ventral ridges. Greatest width at subcentral tubercle. Holotype. —FGS S 5206. Paratypes. —HVH Nos. 4720, 4721. Type locality. — Bahia Honda, Florida Keys. Stratigraphic horizon. — Recent. Dimensions. — НҮН No. 10549 (carapace), L: 0.47; H: 0.23; W: 0.23 (loc. NMB 17183). Material. — More than 50 specimens. Remarks. — The difference from H. hutchisoni Bold, 1957b (p. 240, pl. 3, figs. 1a, b) lies in the position of greatest width. Occurrence. — Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Rio Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Recent: Caribbe- an, Gulf of Mexico. Hermanites tschoppi (Bold) Cythereis tschoppi Bold, 1946, p. 93, pl. 10, figs. 14a, b. Hermania reticulata Puri, 1954, p. 267, pl. 11, fig. 9, text-figs. 9g, h. Hermanites reticulata (Puri). Puri, 1955, p. 358; Benson, 1972, pl. 1, fig. 10. Hermanites haidingeri (Reuss). Bold, 1957b, p. 239, pl. 2, figs. 1а, b [not Cypridina haidingeri Reuss, 1850, p. 78, pl. 10, figs. 13a, b]. Hermanites tschoppi (Bold). Bold, 1960, p. 170; Bold, 1965b, p. 398, pl. 6, figs. 2a, b; Bold, 1970b, tables 1, 3; Bold, 1971a, table 2; Bold, 1972b, p. 428, tables 2, 4, 6; Bold, 1973a, table 1; Poag, 1974, p. 68, pl. 9, fig. 9; Bold, 1975d, table 4; Bold, 1976, table 4; Bold, 1978b, tables 3, 5, 10; Bold, 1981, p. 15, 26, pl. 4, fig. 3, table 3; Bold, 1982, tables 3, 4. Hermanites fungosa Butler, 1963, p. 63, pl. 4, figs. 4—6. Not Hermanites reticulata (Puri). Hulings, 1967b, p. 654, figs. 4 (1, та) [= H. transoceanica Teeter, 1975, p. 450, figs. 110–а, 12h]. Not Hermanites tschoppi (Bold). Holden, 1976, p. 27, pl. 4, figs. 6— 9, pl. 12, fig. 5, pl. 13, figs. 3, 4. Holotype. — GIRU S 13019. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 148). Stratigraphic horizon. — Paso Real Formation (lower Miocene). Dimensions. —Right valve, L: 0.57; H: 0.31 (loc. NMB 17189, No. 4). Material. — Two specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Distribution. — Oligocene to middle Miocene: Carib- bean, Gulf Coast. Genus BRADLEYA Hornibrook, 1952 Bradleya ex gr. dictyon (Brady) Bradleya ex gr. dictyon (Brady). Bold, 1968, table 12; Bold, 1971b, table 4; Bold, 1975a, table 13; Bold, 19785, table 9. Not Bradleya ex gr. dictyon (Brady). Bold, 1972a, tables 2, 3, 4; Bold, 1972b, tables 1—4; Bold, 1973a, table 1; Bold, 1975d, table 3; Bold, 1978b, table 7; Bold, 1981, p. 107, tables 8, 12, 13, 14 [= Bradleya johnsoni Benson (in Benson and Peypouquet, 1983, p. 811, pl. 3, fig. 8)]. ?Bradleya dictyon (Brady). Benson, 1972, p. 34, pl. 8, figs. 7, 8, pl. 9, figs. 1-12, pl. 11, fig. 18 (lectotype). Not Bradleya dictyon (Brady). Bold, 1981, pp. 104, 108, pl. 4, fig. 17; Steineck, 1981, table 2, p. 345; Steineck et al., 1984, figs. 6H- К, 14, 15, tables 4, 5 [= Bradleya johnsoni Benson (in Benson and Peypouquet, 1983, p. 811, pl. 3, fig. 8)]. Remarks. —Steineck (written commun., 1985) in- formed me about the identity ofthe species of Bradleya from the Montpelier Group in Jamaica and the Tho- monde Formation in Haiti with Bradleya johnsoni Benson. The latter species is now known from the lower and middle Miocene. The upper Miocene and Pliocene species from the Caribbean may be a new species, but for the time being, I prefer to refer to it as B. ex gr. dictyon (Brady). Dimensions. – НУН No. 8297 (left valve), L: 0.76; H: 0.53 (loc. Н 15101). Occurrence. — Río Yaque del Norte (Santiago): (Ta- ble 4). Distribution. — Pliocene (?late Miocene), Caribbean. Subfamily COQUIMBINAE Ohmert, 1968 Genus COQUIMBA Ohmert, 1968 Coquimba congestocostata (Bold) Plate 3, figure 17 Puriana? congestocostata Bold, 1963b, p. 390, pl. 7, figs. 5a, b, pl. 12, fig. 9; Bold, 1964, table 2; Bold, 1966b, p. 5; Bold, 1968, pl. 5, figs. 3a—c, tables 4—8, 10, 13. Coquimba congestocostata (Bold). Bold, 19715, p. 337, tables 2, 3- 6; Bold, 1975a, tables 2, 11; Bold, 1975c, tables 3, 4; Bold, 1978b, table 9; Bold, 1981, p. 81, pl. 4, fig. 6, table 13; Bold, 1983, pp. 407, 411, figs. 1, 5. Diagnosis. — An elongate species of Coquimba with narrow, irregular fossae and broad ridges separating them. Holotype. — USNM 689080. Paratypes. — HVH No. 6862. Type locality. — Loc. R 3776A, Mamural road, Cen- tral Range, Trinidad. Stratigraphic horizon. —San Jose calcareous silt member of the Manzanilla Formation (upper Mio- сене): Dimensions. — HVH No. 10548 (left valve), L: 0.68; H: 0.38 (loc. NMB 16125). Material. —Twenty-six specimens. Occurrence. — Rio Cana: Cercado and Gurabo for- mations (Table 1). Rio Gurabo: Gurabo Formation (Table 2). Rio Mao: (Table 3). Rio Yaque del Norte (Arroyo Lopez, Santiago): (Table 4). Distribution. — Upper Miocene to Pliocene: Greater Antilles, Trinidad, Costa Rica. Coquimba minuta (Bold) Plate 3, figure 16 Puriana minuta Bold, 1963b, p. 390, pl. 8, figs. 2a, b; Bold, 1964, table 2; Bold, 1966b, p. 5; Bold, 1966c, pp. 14, 15, tables 1, 2; Bold, 1966d, pl. 4, fig. 4; Bold, 1968, table 7; Bold, 1970a, table 1; Bold, 1972a, table 3. Coquimba minuta (Bold). Bold, 1971b, p. 337, tables 2, 4, 5; Bold, 1978b, table 9. Diagnosis.—A small species of Coquimba resem- bling a species of Puriana, but with muscle scars typical of Coquimba, and without much ornamentation. Holotype. — USNM 68007. Paratypes. —HVH No. 6869. Type locality. —Loc. R 12528, between Flanagan Town and Mamural, Central Range, Trinidad. Stratigraphic horizon. — Gransaul clay member of the Springvale Formation (upper Miocene). Dimensions. — НУН No. 10547 (carapace), L: 0.51; H: 0.25; W: 0.27 (loc. NMB 16097). Material. — Two specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Mao Formation (Table 2). Río Mao: (Table 3). BULLETIN 329 Distribution. — Upper Miocene to Recent: Jamaica, Dominican Republic, Trinidad, Venezuela, Costa Rica. Subfamily TRACHYLEBERIDINAE Sylvester-Bradley, 1948 Genus TRACHYLEBERIDEA Bowen, 1953 Trachyleberidea mammidentata (Bold) Plate 5, figures 5, 6 Cythereis cubensis var. mammidentata Bold, 1946, p. 91, pl. 10, figs. 23a-d; Bold, 1950, p. 107, table 1. Trachyleberidea cubensis mammidentata (Bold). Bold, 1963c, p. 396; Bold, 19665, p. 5. Trachyleberidea mammidentata (Bold). Bold, 1967а, p. 8; Bold, 1968, p. 57, pl. 5, figs. 5a, b, figs. 7a, b, tables 11, 12; Bold, 1970b, table 1; Bold, 1971а, tables 1, 2; Bold, 19715, tables 3-5; Bold, 1973b, table 1; Bold, 1975a, table 11; Bold, 1975c, table 2; Bold, 1975d, table 3; Kusnetzov et al., 1977, p. 52; Furrazola Bermüdez et al., 1978, p. 40 (table); García-Mendez, 1978, table 1; Bold, 1981, pp. 53, 96, 102, 106, 110, 115, pl. 4, fig. 14, tables 3, 7, 8, 12, 13; Steineck, 1981, p. 346, pl. 1, fig. 12, table 2. ?Trachyleberidea pretiosa Levinson in LeRoy and Levinson, 1974, р. 22, pl. 14, figs. 1-5; Cronin, 1983, pl. 3, fig. 8. Diagnosis. — A species of Trachyleberidea with coarse anterior denticulation. Holotype. — GIRU S 13012. Type locality. — Loc. T 1479, on road from Sierra de Nipe to Mayari, 3.5 km S of Mayari, Oriente Province, Cuba. Stratigraphic horizon. — Lower Nipe Formation, lower Miocene (2 = Jagüeyes Formation of Kozary, 1957, Jakus, 1983, p. 60). Dimensions. — НУН No. 10554 (left valve), L: 0.79; H: 0.46 (loc. NMB 16103). Material. — Ten specimens. . Remarks. —There are some subtle changes in mor- phology during the evolution of this species from the late Oligocene to the Pliocene, but they do not appear to be greater than variation in morphology in local populations. The Pleistocene to Recent species Т. pre- tiosa appears to fall within the range of variability and for this reason it is tentatively considered as synony- mous. Occurrence. — Río Cana: Mao Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Distribution. —Oligocene to Recent: Greater An- tilles; Pleistocene to Recent: Gulf of Mexico, Atlantic coast? Genus TRACHYLEBERIS Brady, 1898 Trachyleberis? bermudezi crebripustulosa Bold Trachyleberis bermudezi crebripustulosa Bold, 19662, р. 181, pl. 22, figs. 8a, b; Воја, 1966c, table 2; Bold, 19715, tables 3, 4; Bold, 1972a, table 4; Bold, 1978b, tables 4, 7; Bold, 1981, pp. 53, 102, 115, pl. 4, figs. 10, 11, tables 11, 23, 14. * Hyphalocythere" sp. Benson in Hsu et al., 1978, pl. 2, fig. 1. Echinocythereis acanthoderma (Brady). Breman, 1982, pl. 1, fig. B. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 39 Not Trachyleberis bermudezi crebripustulosa Bold. Carreño, 1982, A Diagnosis.—A large species of Trachyleberis? or “Hyphalocythere” (nom. nud.), densely covered with large, sometimes branching spines, except for a more or less circular area around the pronounced subcentral group of tubercles. Holotype. —HVH No. 7886. Type locality. —Тос. RM 19303, Pozön-El Mene road, Falcón, Venezuela. Stratigraphic horizon. — Base of Husito marly clay (lowermost middle Miocene). Dimensions. —HVH No. 10813 (left valve), L: 0.91; H: 0.51 (loc. H 15101). Material. — Six specimens. Occurrence. — Río Yaque del Norte (Santiago): (Ta- ble 4). Distribution. — Middle Miocene to Recent: Carib- bean deep-water deposits. Genus COSTA Neviani, 1928 Costa dohmi Bold Plate 5, figure 3 Costa dohmi Bold, 1968, p. 59, pl. 3, figs. 9a-d, tables 6-8, 11; Bold, 1970a, p. 71; Bold, 19715, p. 338 (part), tables 2, 5 [not pl. 2, fig. 7, tables 3, 4]; Bold, 1981, p. 78, table 15. Diagnosis. — А species of Costa with short longitu- dinal ridge between ventral and median ridge. Holotype. —HVH No. 8311. Type locality. — Loc. H 15269 on Valverde-Monción road, 300 m east of Las Quemadas, Dominican Re- public (Bold, 1968, text-fig. 3). Stratigraphic horizon. — Gurabo Formation (Plio- cene). Dimensions. —HVH No. 10552 (right valve), L: 0.62; H: 0.37 (loc. NMB 15978). Material. — More than 50 specimens. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Pliocene: Jamaica, Hispaniola. Costa bellipulex Levinson Plate 5, figures 1, 2 Costa dohmi Bold. Bold, 19715, pl. 2, fig. 7, tables 3, 4 [not C. dohmi Bold]. Costa bellipulex Levinson in LeRoy and Levinson, 1974, p. 20, pl. 13, fig. 6; Bold, 1981, p. 78. Costa aff. bellipulex Levinson. Breman, 1982, pl. 1, fig. J. “Costa” bellipulex Levinson. Cronin, 1983, pl. 3, fig. A. Diagnosis. — А three-ribbed, very evenly-reticulate species of Costa with a few enlarged fossae below the median ridge. Holotype. — USNM 143787. Type locality. — Exxon No. 2, OGS-G-1619 well, at 4120—4210 ft. Gulf of Mexico, due south of South Pass distributary of the Mississippi River. Stratigraphic horizon. — Middle Pleistocene. Dimensions. —HVH No. 10551 (left valve), L: 0.68; H: 0.21; HVH No. 10550 (right valve), L: 0.71; H: 0.21 (loc. NMB 16039). Material. — Six adults, many molts. Occurrence. — Río Gurabo section: Gurabo and Mao formations (Table 2). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Pliocene to Recent: Jamaica, Hispan- iola, Gulf of Mexico. Genus CATIVELLA Coryell and Fields, 1937 Cativella navis Coryell and Fields Plate 5, figure 4 Cativella navis Coryell and Fields, 1937, p. 9, pl. 1, fig. 9; Bold, 1946, p. 104, pl. 12, fig. 11; Bold, 1950, p. 85; Puri, 1954, p. 262, pl. 11, figs. 3-7, text-figs. 9i-k; Bold, 1958, p. 404, pl. 3, fig. 4; Bold, 1963a, table 6; Bold, 1963d, pp. 697, 698; Bold, 1964, table 2; Bold, 1966b, p. 7; Bold, 1966c, p. 14, tables 1, 2; Bold, 1966e, table 1; Bold, 1967a, table 1; Bold, 1967b, p. 311, pl. 1, fig. 5; Bold, 1968, tables 4, 10, 11; Rodríguez, 1969, p. 197, pl. 3, figs. 1, 3, text-fig. 12; Bold, 1970a, table 1; Bold, 1970b, table 4; Bold, 19715, tables 3, 5; Bold, 1972a, tables 2, 3; Bold, 1973b, p. 334; Puri, 1974, pl. 5, figs. 8a, b; Bold, 1975a, tables 2, 3, 6, 7, 9-11; Bold, 1976, table 4; Bold, 1978b, tables 6-10; Bold, 1981, table 3. Navecythere delicata Coryell and Fields, 1937, p. 7, pl. 1, figs. 7a—c [not Pterygocythereis delicata (Coryell and Fields). Swain, 1967, p. 47, pl. 3, figs. За, b, 4a—, text-fig. 39 = prob. molt of Cativella semitranslucens (Crouch, 1949)]. Diagnosis. — A species of Cativella with the anterior rim continuing into the dorsal ridge. Holotype. — AMNH 248931. Type locality. — Cativa, Panama. Stratigraphic horizon. —Gatun Formation (upper Miocene). Reference material. – НУН No. 1871 (topotype). Dimensions. —HVH No. 10814 (left valve), L: 0.70; H: 0.53 (loc. NMB 17010); HVH No. 10553 (right valve), L: 0.70; H: 0.41 (loc. NMB 17011). Material. — More than 50 specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Distribution. — Middle Miocene to Recent: Carib- bean, Gulf Coast. Cativella species aff. C. moriahensis Bold Cativella cf. semitranslucens (Crouch). Bold, 1957b, p. 243, pl. 2, fig. 6, table 1 [not Cativella aff. semitranslucens (Crouch). Bold, 1958, p. 404, pl. 3, fig. 3, table 1]. Cativella sp. aff. C. moriahensis Bold. Bold, 1970b, table 3 (part) [not table 4]; Bold, 1972a, table 3; Bold, 1981, p. 14, table 2. Dimensions. — Carapace, L: 0.80; H: 0.44; W: 0.44 (Laguana amber site, No. 18). Material. — One specimen. Occurrence. — Laguana amber site: (Table 5). Distribution. — Lower Miocene: Hispaniola, Trini- dad (Quinam Quarry), Colombia (Goajira). Genus NEOCAUDITES Puri, 1954 Neocaudites scottae Teeter Plate 3, figure 14 Neocaudites nevianii (Edwards). Bold, 19715, pl. 2, fig. 11; tables 3 (part), 4 [not Cythereis nevianii Edwards, 1944, p. 522, pl. 87, figs. 24-26]. Neocaudites scottae Teeter, 1975, p. 355, figs. 12j, 13k-m. Neocaudites sp. Bold, 1975a, table 2; Bold, 1978b, table 1. Diagnosis. — A finely-reticulate species of Neocau- dites. Holotype. —HVH No. 9012. Type locality. — Loc. St. 320 of Teeter (1975), in 1.5 m of water near South Water Cay, Belize. Stratigraphic horizon. — Recent. Dimensions. —HVH Мо. 10556 (сагарасе), L: 0.45; H: 0.26; W: 0.20 (loc. NMB 16097). Material. — Three specimens. Remarks. —Cronin (written commun., 1985) be- lieves that Neocaudites scottae Teeter is a junior syn- onym of N. macertus (Stephenson, 1944). In compar- ing the holotype of N. macertus (HVH No. 2299) with that of N. scottae (HVH No. 9012), I find that the first is more elongate and has a blunter anterior end, and N. scottae appears more coarsely reticulate, which also separates it from N. subimpressus (Edwards, 1944). Occurrence. — Río Gurabo: Mao Formation (Table 2). Río Yaque del Norte (?Arroyo López): (Table 4). Distribution. —Pliocene to Recent: Cuba, Domini- can Republic, Costa Rica; Recent: Belize. Genus OCCULTOCYTHEREIS Howe, 1951 Occultocythereis angusta Bold Plate 5, figure 9 Cythereis deformis Brady, 1911, p. 597, pl. 20, figs. 6, 8 [not Cythereis deformis Baird, 1850, p. 256, pl. 16, figs. 4—6]. Occultocythereis angusta Bold, 19635, p. 391, pl. 9, figs. la—, pl. 12, fig. 6; Bold, 1966b, p. 5; Bold, 1966e, table 1; Bold, 1968, table 8; Bold, 1971b, tables 4, 6; Allison and Holden, 1971, p. 203, figs. 27a-f, Teeter, 1973, table 1; Maddocks, 1974, p. 212, pl. 7, figs. 5-6; Bold, 1975c, tables 2, 5; Teeter, 1975, p. 453, figs. 13f, 8, 14a; Bold, 1978b, table 9. Diagnosis. — A two-ribbed species of Occultocyther- eis with heavy anterior rim and cuneiform dorsal view. Holotype. —BM(NH) 1911-118. M 3334. Type locality. — Off Madeira at 70 fathoms. Stratigraphic horizon. — Recent. Reference material. — USNM 684081. Reference locality. — Loc. K 5121, Chaguaramas Bay, Trinidad. Stratigraphic horizon. — Recent. BULLETIN 329 Material. — Eleven specimens. Dimensions. —HVH No. 10557 (carapace), L: 0.51; H: 0.27; W: 0.21 (loc. NMB 16039). Occurrence. — Rio Gurabo: Gurabo and Мао for- mations (Table 2). Distribution. — Upper Miocene to Recent: Cuba, Ja- maica, Dominican Republic, Trinidad, Costa Rica; Recent: off Madeira, Belize, Gulf of Mexico, Pacific Ocean (Clipperton Island). Genus PTERYGOCYTHEREIS Blake, 1933 Pterygocythereis polita Bold Plate 5, figure 10 Pterygocythereis polita Bold, 1968, p. 64, pl. 3, figs. 4a—c, pl. 9, figs. 4a, b, tables 6-8, 10; Bold, 1978b, table 9 (part). ?Pterygocythereis hondurasensis Teeter, 1975, p. 46, figs. 15n-p, 16a. Diagnosis.— А species of Pterygocythereis with a continuous ridge forming the rim of the ventral alae, the anterior rim and the dorsal ridge, breaking off sharply at the posterior cardinal angle; ends heavily dentate, the anterior dentition continuing for a short distance along the ventral margin. Holotype. — НУН No. 8357. Type locality. — Loc. H 15299, on Santiago-Las Ma- tas road, about 3.5 km west of La Bosua, Dominican Republic (Bold, 1968, text-fig. 5). Stratigraphic horizon. — Gurabo Formation (Plio- бепе) Dimensions. —HVH No. 10567 (left valve), L: 0.70; H: 0.40 (loc. NMB 17011). Material. — Forty-five specimens. Remarks. — P. hondurasensis Teeter is very similar, but appears to have the ala placed a little more towards the posterior. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Distribution. — Upper Miocene to Recent: Jamaica, Dominican Republic, Costa Rica; Recent: Belize? Pterygocythereis llinasi, new species Plate 5, figures 11, 12 Pterygocythereis miocenica Bold. Bold, 1968, tables 4—7, 9, 10 [not Pterygocythereis miocenica Bold, 1967b, p. 310, pl. 1, figs. 19a, Ы. Etymology of пате. —In honor of Romeo Llinas- Capellán, at the time of our fieldwork Director General de Minería, Dominican Republic. Diagnosis. — A species of Pterygocythereis with a long, curved dorsal ridge in the left valve. Holotype. – НУН No. 10564 (left valve). Paratypes. —HVH No. 10565 (carapace), HVH No. 10566 (two left valves, two right valves). DOMINICAN REPUBLIC NEOGENE. 7: BOLD 41 Type locality. — Loc. NMB 15978. Stratigraphic horizon. — Gurabo Formation. Description. — Carapace alate, elongate subovate in side view, obliquely-rounded anteriorly, pointed below the middle posteriorly. Greatest height at about three- tenths of the length from the anterior extremity; great- est width at the end of the short, but wide alae, at about one-third of the length from the posterior extremity. Anterior end obliquely-rounded, bearing large and broad spines that continue a short distance along the ventral margin; ventral margin slightly sinuate; dorsal margin straight in the right valve, rather strongly con- vex in the left, forming a compressed ridge, and con- tinuing with only a slight cardinal angulation into the posterior margin, which is slightly concave in the upper part. The ventral margin passes into the convex lower portion of the posterior margin and is finely spinose; at the posterior extremity a large spine occurs. Ventral surface flattened by a short, but wide ala, which pos- sesses a flattened rim. Surface quite smooth. Just below the greatest height is a low but wide eye-tubercle. Dimensions. —HVH No. 10565 (carapace), L: 0.78; H: 0.37; W: 0.52 (loc. NMB 15978). Remarks. —This species occurs with P. polita, but differs by its curved dorsal margin of the left valve, where P. polita has a straight ridge. Material. — Eleven specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Genus PURIANA Coryell and Fields in Puri, 1953b Puriana gatunensis (Coryell and Fields) Plate 5, figure 7 Cythereis rugipunctata (Ulrich and Bassler). Howe et al., 1935, p. 23, pl. 1, figs. 18, 20—22, pl. 4, figs. 22, 23 [not Cythere rugipunctata Ulrich and Bassler, 1904, p. 118, pl. 38, figs. 16, 17]. Cythereis rugipunctata var. gatunensis Coryell and Fields, 1937, p. 10, pl. 2, fig. 11. Favella puella Coryell and Fields, 1937, p. 8, pl. 1, fig. 8. Favella rugipunctata (Ulrich and Bassler). Bold, 1946, p. 100, pl. 10, fig. 3; Bold, 1950, p. 86. Puriana rugipunctata (Ulrich and Bassler). Puri, 1953b, p. 751; Puri, 1954, p. 257, pl. 12, figs. 18, 19, text-fig. 8k; Puri and Hulings, 1957, pp. 174, 176, 183; Bold, 1958, p. 404, pl. 3, fig. 2; Benson and Coleman, 1963, p. 43, pl. 8, figs. 1, 2, 5, text-fig. 27; Bold, 1963b, table 6; Bold, 1964, table 2; Bold, 1965b, p. 399, table 1; Hulings, 1966, p. 55, fig. 8i; Bold, 1966c, tables 1, 2; Bold, 1967b, D. 311, pl. 1, fig. 7; Grossman, 1967, p. 77, pl. 14, fig. 8, pl. 21, figs. 11-13; Hulings, 19675, p. 654, fig. 7j; Bold, 1968, tables 4, 5 [not table 11]; Rodríguez, 1969, p. 195, pl. 3, figs. 7, 8, text-fig. 15; Puri and Vanstrum, 1969, pp. 73, 74, 76—78; Bold, 1970b, p. 40, tables 1, 4; Bold, 1971a, table 2; Bold, 19722, tables 2, 3; Bold, 1978a, table 4; Bold, 1978b, tables 2, 8, 10; Gío-Argáez, 1982, p. 47, pl. 4, fig. 1; Machain-Castillo, 1982, p. 52. Puriana puella (Coryell and Fields). Puri, 1954, p. 257, pl. 12, fig. 17 [not Puriana sp. aff. P. puella (Coryell and Fields). Bold, 1957b, р. 244, pl. 3, figs. 9a, b]. Puriana sp. Swain, 1955, p. 635, pl. 63, fig. 10; Krutak, 1971, p. 15, pl. 4, fig. 4a. Puriana floridana Puri, 1960, p. 127, pl. 1, figs. 7, 8, text-figs. 20, 21; Valentine, 1971, pl. 2, figs. 32, 37; Cronin, 1979, p. 147, pl. 17, fig. 10. Puriana gatunensis (Coryell and Fields). Bold, 1971b, tables 3, 5. Puriana sp. aff. P. rugipunctata (Ulrich and Bassler). Bold, 1975c, table 5. Puriana rugipunctata gatunensis (Coryell and Fields). Bold, 19715, pl. 2, fig. 14; Bold, 1973a, table 1; Bold, 1973b, p. 334; Bold, 1975c, tables 2, 4; Bold, 1978b, table 9; Bold, 1981, pp. 102-104, 108, tables 2, 3, 14. Puriana krutaki Kontrovitz, 1976, p. 70, pl. 4, figs. 9, 10. Puriana cf. krutaki Kontrovitz. Krutak, 1982c, p. 367, pl. 6, figs. 15-17. Diagnosis. — A small, elongate subquadrate species of Puriana, with irregular nodes, which are arranged in three to four vertical rows in the posterior part. Holotype. — AMNH 24895. Type locality. — Cativa, Panama. Stratigraphic horizon. —Gatun Formation (upper Miocene). Reference material. – НУН No. 1870 (topotype). Dimensions. —HVH No. 10561 (left valve), L: 0.51; H: 0.16 (loc. NMB 16125). Material. — About 30 specimens. Remarks. — Comparison with material of P. flori- dana and P. krutaki, deposited in the H. V. Howe collections, has led me to conclude that they represent the same species as P. gatunensis. Cronin (written com- mun., 1985) points out that the inclusion ofthese species allows for a large variation in ornamentation of P. gatunensis. It is mainly a question of the size of the tubercles and not their location on the carapace, which is rather constant in all specimens. Therefore, I con- sider them, for the time being, as environmentally- induced variation. Cronin is at present making a study ofthe Puriana rugipunctata group, and if he can suggest a variation consistent with identifiable environments or geographic limits, I can accept these new forms as distinct subspecies or even species. However, so far I have not seen any regularity in their distribution. АЈ- though the species name puella was used by Puri (1954) prior to use of the name gatunensis (Bold, 1971b), I prefer to use the latter name, which was employed by Coryell and Fields for the adults of the species. The species Favella puella was established on the basis of immature individuals, so that the morphology of the holotype would not be representative of the genus if the specimen deposited as AMNH 24892 (holotype of F. puella) be accepted as the holotype. Occurrence. —Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Yaque del Norte (Arroyo Ló- pez): (Table 4). Distribution. — Upper lower Miocene to Recent: Ca- ribbean, Florida, Gulf Coast. 42 BULLETIN 329 Puriana pustulosa Bold Plate 5, figure 8 Puriana pustulosa Bold, 1968, p. 63, pl. 4, figs. 5a-c, pl. 5, figs. 6a, b, tables 9, 10. Diagnosis. — A small species of Puriana, with irreg- ular pustules, one very prominent at about one-fourth of the length from the posterior, just above the ventral margin. Holotype. —HVH No. 8364. Type locality. —Loc. Н 15211, Rio Mao in broad west bend of the river between Paso Jiménez and Paso Cercado (Bold, 1968, text-fig. 4). Stratigraphic horizon. — Gurabo Formation (Plio- cene). Dimensions. —HVH No. 10562 (left valve), L: 0.41; H: 0.21 (loc. NMB 16964). Material. — Eighteen specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Puriana scrupulosa Bold Puriana scrupulosa Bold, 1968, p. 61, pl. 5, figs. 4a—c, pl. 9, figs. 5a, b, tables 5, 9, 10. Diagnosis. — A species of Puriana with ruggedly spi- nose ornamentation; dorsal spines bladelike and de- flected backwards. Holotype. —HVH No. 8361. Type locality. — Loc. H. 15437, Río Cana (Bold, 1968, text-fig. 3). Stratigraphic horizon. — Gurabo Formation. Dimensions. – НУН No. 10563 (left valve), L: 0.49; H: 0.26 (loc. TU 1446). Material. — Twenty-seven specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Puriana species Puriana sp. aff. P. puella (Coryell and Fields). Bold, 1957b, p. 244, pl. 3, figs. 9a, b [not Favella puella Coryell and Fields, 1937, p. 8, pl. 2, figs. 8а—с]. Puriana rugipunctata (Ulrich and Bassler). Bold, 1968, table 11 [not tables 4, 5] [not Cythere rugipunctata Ulrich and Bassler, 1904, p. 118, pl. 38, figs. 16, 17]. Puriana rugipunctata gatunensis (Coryell and Fields). Bold, 1981, tables 2, 3 [not table 14]. Dimensions. —HVH No. 10815 (carapace), L: 0.51; H: 0.26; W: 0.27 (loc. ММВ 17186). Material. — Four specimens. Remarks.— Аз stated by Bold (1957b), the speci- mens from the Quinam, Morne Diablo and Ste. Croix quarries of Trinidad, differ from the younger species (P. gatunensis) by their almost unornamented poste- rior portion. The posterior cardinal angle is sharp and backwardly-deflected. This is also true for the speci- mens found in the Río Yaque del Norte (López) sec- tion. Occurrence. — Río Yaque del Norte (López, Arroyo López): (Table 4). Distribution. — Upper lower Miocene: Trinidad, His- paniola. Genus AMBOCYTHERE Bold, 1957c Ambocythere exilis Bold Plate 3, figure 15 Ambocythere exilis Bold, 1966b, pp. 5, 14, pl. 1, figs. 3-6, text-fig. 6; Bold, 1968, p. 64, tables 7, 12, 13; Bold, 19715, p. 338, tables 3-5; Bold, 1972a, table 4; Bold, 1975a, table 13; Bold, 1978b, table 9; Bold, 1981, pp. 21, 53, 114, pl. 3, fig. 7, tables 14, 15 [not Ambocythere exilis Bold. Howe and Bold, 1975, pl. 1, fig. 3 (— A. ramosa Bold, 1966b)]. Diagnosis. — An elongate species of Ambocythere with a faint, irregular pattern of ridges and weak longitu- dinal costae. Holotype. —HVH No. 7900. Type locality. — Loc. H 15422, Río Gurabo. Stratigraphic horizon. — Gurabo Formation (Plio- cene). Dimensions. — НУН No. 10568 (carapace), L: 0.51; H: 0.27; W: 0.18 (loc. NMB 16039). Material. — Twenty-seven specimens. Occurrence. — Río Cana: Mao Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Distribution. — Upper Miocene to Pleistocene: Do- minican Republic, Haiti, Jamaica, Trinidad, Costa Rica. Genus ECHINOCYTHEREIS Puri, 1954 Echinocythereis madremaestrae, new species Plate 5, figures 14, 15 Cythereis dentata Müller. Bold, 1946, p. 90, pl. 10, figs. 21a, b [not C. dentata Müller, 1894]. Bosquetina sp. aff. B. carinata (Baird). Bold, 1967a, p. 79, pl. 1, fig. 16, pl. 2, figs. 7, 8; Bold, 1972a, p. 1041; Bold, 1973b, p. 153, table 1; Bold, 1978b, table 2. Echinocythereis garretti (Howe and McGuirt). Bold, 1978b, table 1 (part) [not Cythereis garretti Howe and McGuirt in Howe et al., 1935, p. 20, pl. 3, figs. 17-19, pl. 4, figs. 5, 15]. Echinocythereis sp. Bold, 1978b, table 9. Echinocythereis, n. sp. Bold, 1983, p. 411, fig. 2. Etymology of name. —In honor of the Universidad Católica Madre y Maestra, Santiago, Dominican Re- public. Diagnosis. — А species of Echinocythereis orna- mented with very small tubercles, which in the ventral portion stand in convex downward rows; another row parallels the anterior margin. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 43 Holotype. —HVH No. 10570 (left valve). Paratypes. —HVH No. 10571 (right valve), 10572 (two left valves, one right valve). Type locality. — Loc. NMB 15978, Río Gurabo. Stratigraphic horizon. — Gurabo Formation (Plio- cene). Description. — Carapace in side view subovate, high- est at the anterior cardinal angle, about three-tenths of the length from the anterior extremity and bearing a large, flat eye-node. Dorsal view spindle-shaped, wid- est about four-tenths of the length from the posterior extremity; both ends compressed with slightly concave sides. Anterior margin slightly obliquely-rounded in the left valve, almost regularly-rounded in the right, finely denticulate. Dorsal margin gently convex, ven- tral margin convex, slightly sinuate in front of the mid- dle; posterior end angled below the middle, convex below, truncate above. Surface relatively smooth for the genus, only ornamented with rows of very small tubercles or papillae, which stand in more or less con- centric rows, ventrally more convex than the ventral outline and paralleling the posteroventral curve of the margin. Slightly larger papillae form a row parallel to the anterior margin. Ventral surface flattened. Marginal area very broad, crossed by 20 to 25 mar- ginal pore canals and 15 to 20 false radial ones, which end in the anterior row of papillae. Selvage strongly developed, especially in the right valve. Hinge consists in the right valve of an anterior, elongate, somewhat bean-shaped tooth, and a slightly lobate posterior tooth. Median groove slightly widened anteriorly to.accom- modate a small, knoblike tooth at the anterior end of the median bar in the left valve. Anterior to this tooth is a large socket, surrounded by a heavy rim, which Obscures the ocular sinus; posterior socket elongate- ovate. Muscle scars form a posterior row of four scars of which the second from above is elongate and slanted forward. Two frontal scars occur. Dimensions. —HVH No. 10570 (left valve, holo- type), L: 0.83; H: 0.56; HVH No. 10571 (right valve), L: 0.86; H: 0.55 (loc. NMB 15978); largest left valve, L: 0.90; H: 0.58 (loc. NMB 15978, No. 17); largest right valve, L: 0.90; H: 0.56 (loc. NMB 15978, No. 27 Material. — Fifty-two specimens. Remarks. — The papillae are smaller and more scat- tered than in most species of the genus [e.g., E. echinata (Sars) of Benson, Delgrosso, and Steineck, 1983, pl. 2, fig. 8], which have aless blunt, more obliquely-rounded anterior end. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pliocene: Cuba, Dominican Republic, Trinidad, Panama, Costa Rica, Mexico. Subfamily BRACHYCYTHERINAE Puri, 1954 Genus BRACHYCYTHERE Alexander, 1933 Brachycythere species aff. B. russelli Howe and Lea Plate 6, figures 16-18; Text-figure 9 Brachycythere sp. cf. russelli Howe and Lea. Bold, 1968, p. 70. Digmocythere sp. aff. D. russelli (Howe and Lea). Bold, 19752, table 15. Diagnosis. — A species of Brachycythere that differs from B. russelli Howe and Lea (in Howe and Law, 1936, p. 41, pl. 2, figs. 30, 31, pl. 3, figs. 23-25) by its more strongly arched dorsal margin and consequently by its wider accommodation groove in the left valve, and by a more posteriorly-oriented greatest height and width. Holotype of B. russelli Howe and Lea. —HVH No. 1681. Type locality. —South bank of Sugar Creek, Cata- houla Parish, Louisiana. Stratigraphic horizon. —Vicksburg Group (Oligo- cene). Dimensions. — HVH No. 10574 (right valve), L: 1.10; H: 0.72 (loc. TU 1292, Río Mao); HVH No. 10574 (left valve), L: 1.11; H: 0.78 (loc. TU 1292, Río Mao); HVH No. 10576 (carapace), L: 1.15; H: 0.80; W: 0.75 (loc. J 160, Buff Bay, Jamaica); HVH No. 10573 (right valve), L: 1.10, H: 0.70 (loc. NMB 15983). Material. — About 80 specimens. The majority of specimens are immature molts. Remarks.—The typical B. russelli (Bold, 1946, p. 107, pl. 13, figs. 8а-с; Bold, 1972b, p. 427, pl. 3, fig. 13; Hazel, Mumma, and Huff, 1980, pl. 5, fig. 3) has a range from late Eocene to early Miocene. В. sp. aff. B. russelli has a range from middle Miocene to Plio- cene. As the two forms appear to form a gradation from one to the other, and it has not yet been estab- lished exactly how and where the change takes place, I prefer for the time being not to describe this form as a new species. The related modern form B. mucronata (Brady) (see Benson, Delgrosso, and Steineck, 1983, pl. 1, figs. 6, 7) differs by a pronounced flattening of the rim that forms the dorsal margin in the left valve. From the Eo-Oligocene to the Recent, this group of — — — — о о OS го о о ос $ SS o ез 9 Po 9, => eco o oo ~ oo =» a b с а Text-figure 9. — Muscle scars of Brachycythere species aff. B. rus- selli Howe and Lea, HVH No. 10574, loc. TU 1292, Gurabo For- mation, Río Mao section. Note the variation from seven to nine Scars in a single population. a. exterior of right valve; b. exterior of right valve; c. exterior of right valve; d. interior of left valve. Anterior side indicated by arrow. 44 BULLETIN 329 forms appears to have migrated from a shallow to a deep marine environment. Therefore it is also not clear if the changes between the forms are environmentally induced or that they form a phylogenetic sequence. The hinge of the present species shows in the right valve an elongate, curved, somewhat lobate, anterior tooth, very similar to that shown by Benson, Delgros- 50, and Steineck (1983, pl. 3, fig. 1) for B. mucronata. At the posterior cardinal angle there is an elongate, crenulate tooth. The median groove merges with a round anterior socket. Adductor scars are very variably arranged. They tend to show a double row of four scars each, although sometimes only seven scars have been Observed, and in one case there is an extra, round scar above the double row (Text-fig. 9). The frontal scar. consists mostly of two individual scars, oblique to the more or less vertical trend of the adductor scars, but also here the shape and position are varying and in one case the two scars have fused, forming an indis- tinct V. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Distribution. — Middle Miocene (N 12 Zone) to Plio- cene: Jamaica, Dominican Republic. Subfamily CAMPYLOCYTHERINAE Puri, 1960 Genus PROTEOCONCHA Plusquellec and Sandberg, 1969 Proteoconcha? evai, new species Plate 6, figures 1-4 Acuticythereis elongata Bold. Bold, 1968, p. 68, pl. 2, figs. 7a-d, tables 4—6, 9, 11; Bold, 1969, table 1; Bold, 1975c, pl. 18, fig. 13, table 4; Bold, 1981, p. 104 [not Acuticythereis elongata Bold, 1946, p. 106, pl. 12, figs. 4a-d]. Campylocythere? sp. Bold, 1975a, p. 563 (loc. M 33, text-fig. 12) [not p. 615, pl. 59, figs. 5a, b]. ?Acuticythereis elongata Bold. Furrazola Bermüdez, Sánchez-Aran- go, García-Sánchez, and Bassov, 1978, p. 40 (table). Etymology of пате. —Тп honor of Anthony Eva, originally from England, at the time of our work in the Dominican Republic from Jamaica, at present working in Houston, Texas. Diagnosis.—A species of the Campylocytherinae (tribe Campylocytherini) with a large anterior vestibule and narrow zone of concrescence, with a knoblike tooth with posterior platform and a round socket at the an- terior side of a crenulate median groove in the right valve. Holotype. — НУН No. 10577 (carapace, female). Paratypes. —HVH Мо. 10578 (right valve), НУН No. 10579 (right valve), HVH No. 10580 (one left, and one right valve), HVH No. 10581 (three left, and three right valves). Type locality. —Loc. NMB 16135, Río Gurabo. Stratigraphic horizon. — Gurabo Formation. Description. — Carapace smooth, elongate-ovate in side view, somewhat pointed behind; greatest height at about one-fifth of the length from the anterior ex- tremity. Anterior margin slightly obliquely-rounded; dorsal margin almost straight, very slightly convex, almost parallel to the ventral margin, which is slightly sinuate; posterior margin obliquely-truncate above the middle, narrowly-rounded just below the middle, obliquely-truncate ventrally. The posterior end is sharply laterally-compressed ventrally from about one- eighth of the length from the posterior extremity back- wards. Dorsal view lenticular, sides regularly and gently convex, both ends equal, narrowly-rounded. Left valve slightly larger than the right, overlapping along almost the entire margin. Surface smooth, normal, sieve-type pore canals numerous, rather evenly spaced over the entire valve. Hinge amphidont. In the right valve, the anterior tooth rises rapidly from the selvage and forms a round- ed knob, with a smaller lobe descending to a short platform between the anterior tooth and the anterior socket. The latter is rounded and connected to a slightly crenulate median groove, which narrows posteriorly, only to widen again just in front of its posterior ter- mination. The posterior tooth is elongate, triangular and smooth in dorsal view, but slightly lobate, showing four distinct lobes in lateral view. In the left valve, an anterior, elongate socket is followed by a knoblike tooth with attached crenulate median bar and a posterior, elongate socket. Marginal area of moderate width in the anterior end; line of concrescence close to and parallel to the outer margin; anterior vestibule large. Marginal pore canals are short and simple, stout, regularly spaced, about 13 in the area of the vestibule. In the posteroventral corner is a narrow and small vestibule with a few closely- spaced pore canals. Muscle scars consist of a posterior row of four adductor scars with two frontal scars and two fairly large mandibular scars. Dimensions. — НУН No. 10577 (carapace, female, holotype), L: 0.84; H: 0.43; W: 0.38 (loc. NMB 16135); HVH No. 10579 (right valve, female), L: 0.80; H: 0.40 (loc. NMB 16135); HVH No. 10581 (left valve, fe- male), L: 0.83; H: 0.43 (loc. NMB 17011); HVH No. 10581 (right valve, male), L: 0.83; H: 0.38 (loc. NMB 17011); HVH No. 10581 (left valve, male), L: 0.83; H: 0.41 (loc. NMB 17011); HVH No. 10581 (carapace, male), L: 0.83; H: 0.38; W: 0.37 (loc. NMB 17011). Material. — More than 180 specimens. Remarks. — Although this species belongs with cer- tainty to the Campylocytherini, there are slight dis- crepancies with the three genera recognized within this tribe, making it, at this stage, impossible to give a satisfactory generic assignment. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 45 Acuticythereis Edwards, 1944, has a crenulate, elon- gate anterior tooth, a shallow postadjacent socket, a long, straight, crenulate groove, and a crenulate pos- terior toothplate (Plusquellec and Sandberg, 1969, p. 439, pl. 5, figs. 1, 2). According to them the hinge changes in modern specimens of Acuticythereis laevis- sima Edwards, 1944 to entomodont. Campylocythere Edwards, 1944, has a longer anterior hinge-element, long, narrow postadjacent socket, and a smaller pos- terior tooth. Proteoconcha has a steep-sided, conical, circular tooth, the posterior side of which slopes steeply into a circular socket, immediately posterior to the anterior tooth; the socket merges with a smooth or crenulate median groove; posterior tooth narrow, slightly longer than the anterior one, smooth to strong- ly crenulate. Text-figure 10 shows the different hinge types found in the Campylocytherini. 'There are also some differences in the development of the marginal area. Campylocythere has a very nar- row zone of concrescence with a wide vestibule and numerous pore canals. Acuticythereis has a wider zone of concrescence, a well-developed vestibule and the the line of concrescence is strongly indented at the beginning of the numerous pore canals. Proteoconcha has a shallow vestibule, a very irregular line of con- crescence and both branching and simple marginal pore canals. Whereas the hinge of P.? evai comes closest to that of Proteoconcha, the marginal area 1s somewhat more similar to that of Campylocythere. However both hinge < ДИС а b с а Text-figure 10.—Schematic dorsal view (anterior side at the top) of the hinge of a: Acuticythereis Edwards, 1944; b: Campylocythere Edwards, 1944; c: Proteoconcha Plusquellec and Sandberg, 1969; d: Proteoconcha? evai, n. sp. and marginal area are distinctly different from all three genera. In view of the variation that Plusquellec and Sandberg allow in Proteoconcha, it appears reasonable to assign the present species questionably to that genus, rather than make it the type species of yet another genus of the Campylocytherini. This species was originally misidentified as Acuti- cythereis elongata Bold, which species has been figured for comparison: Proteoconcha? elongata (Bold) ІРІ. 6, figs. 5 and 6]. Several badly-preserved specimens from the Dominican Republic and Haiti were originally identified as А. elongata. They are figured here for the first time: Proteoconcha? elongata (Bold)? from loc. M 26 in the Thomonde Formation, Comendador area, Dominican Republic (Pl. 6, fig. 9), and Proteoconcha? elongata (Bold)? from loc. K 534, north flank of Cha- mouscadille anticline, Haiti (Bold, 1981, p. 104, text- fig. 8) of the Las Cahobas Formation (Pl. 6, fig. 8). Furrazola Bermüdez et al., 1978 (correlation chart, part 1, p. 40), report Acuticythereis elongata from the upper Miocene (Globorotalia acostaensis Zone) of Cuba. I have not seen these specimens, but it appears very possible that they may turn out to be Proteoconcha? eval. Occurrence. — Río Cana: Cercado, Gurabo, and Mao formations (Table 1). Río Gurabo: Cercado and Gu- rabo formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (López, Arroyo López, Santiago): (Ta- ble 4). Distribution. — Upper Miocene and Pliocene: Great- er Antilles. Genus CAMPYLOCYTHERE Edwards, 1944 Campylocythere species Plate 6, figure 7 Campylocythere sp. Bold, 1968, p. 68, pl. 2, figs. 8a-d. Dimensions. —HVH No. 10582 (carapace), L: 0.77; H: 0.36; W: 0.28 (loc. NMB 16995). Material. — Two specimens. Occurrence. — Río Cana: Cercado Formation (Table 1). Genus CARIBELLA Teeter, 1975 Caribella geisteri, new species Plate 6, figures 10-13 “N. gen., n. sp." Bold, 1968, p. 82, pl. 4, fig. 2, pl. 10, fig. 3, tables DENIS N. gen., sp. Bold, 1975c, table 4. Nov. gen., nov. sp. Bold, 1968; Bold, 1975d, table 1. Etymology of name. – Іа honor of Jörn Geister, Bern, Switzerland, companion in the Dominican Republic. Diagnosis. — А small species of Caribella, subrectan- gular in outline, longitudinally-ribbed and reticulate. Holotype. – НУН No. 10528 (carapace). 46 BULLETIN 329 Paratypes. — HVH No. 8394 (one left valve, one right valve); HVH No. 10529 (left valve); HVH No. 10530 (right valve); HVH No. 10531 (right valve). Type locality. — Loc. NMB 16964, Río Cana. Stratigraphic horizon. — Gurabo Formation ("upper Miocene). Description. — Carapace minute, subrectangular, about twice as long as high. Greatest height at anterior cardinal angle, about one-third of the length from the anterior extremity. Anterior margin evenly-rounded; dorsal margin straight, ventral margin almost straight, very slightly converging posteriorly; posterior margin bluntly angled in the middle, about straight above and below. Overlap of larger left valve strongest at the an- terior cardinal angle. Surface relatively coarsely retic- ulate, longitudinal ridges more prominent with espe- cially the dorsal and median ridge standing out. The inside of the fossae is minutely pitted. Dorsal view wedge-shaped, widest at one-fourth of the length from the posterior extremity. Posterior end compressed lat- erally. Marginal area widest in the anterior end with a small vestibule; moderate number of marginal pore canals, slightly widened in the middle; some false radial canals occur. Hinge consists of an anterior tooth in the right valve, placed rather far backward, followed by a small socket that narrows to a small groove; posterior tooth more elongate and somewhat lobate. Adductor muscle scars form a vertical row of four with a V-shaped fron- tal scar. Dimensions. – НУН No. 10528 (carapace, holo- type), L: 0.34; H: 0.19; W: 0.16 (loc. NMB 16964). Material. — Thirty-eight specimens. Remarks.—'This species is smaller than the type species, Caribella puseyi Teeter, 1975 (p. 461, pl. 14i, 15k-m) from Recent deposits off Belize (main lagoon), which species appears to be confined to Central Amer- ica. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Distribution. — Upper Miocene to Pliocene: Cuba, Dominican Republic, Puerto Rico. Caribella yoni (Puri) Plate 6, figures 14, 15 Leptocythere yoni Puri, 1960, p. 114, pl. 4, figs. 8, 9. “Leptocythere” yoni (Puri). Bold, 1972a, table 2. Nov. gen. yoni (Puri). Bold, 1975c, table 5. Basslerites yoni (Puri). Teeter, 1975, p. 360, figs. 14h, 15g. Caribella yoni (Puri). Bold, 1978b, table 2. Not n. gen. n. sp., aff. Leptocythere yoni Puri. Bold, 1978b, table 9 [= Caribella puseyi Teeter]. Diagnosis. — A species of Caribella with longitudinal arrangement of elongate and narrow fossae. Holotype. —HVH No. 4740. Type locality. — Bahia Honda, Florida Keys. Stratigraphic horizon. — Recent. Dimensions. —HVH No. 10532 (left valve), L: 0.41; H: 0.22; HVH No. 10533 (right valve), L: 0.42; H: 0.21 (loc. NMB 16978). Material. — Twenty-six specimens. Remarks.— Although Teeter did not include this species in his genus Caribella but assigned it to Bass- lerites Howe (in Coryell and Fields, 1937), the three known species are so closely related that I have no hesitation to place it in Caribella. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Mao Formation (Table Py Distribution. — Upper Miocene to Recent: Domini- can Republic, Venezuela; Recent: Gulf of Mexico, Be- lize, Cuba. Family CYTHERETTIDAE Triebel, 1952 Genus CYTHERETTA Müller, 1894 Cytheretta dominicana (Bold) Plate 5, figure 13 Paracytheretta dominicana Bold, 1968, p. 55, pl. 3, figs. 5a, b, pl. 9, fig. 2, tables 4—6, 10; Bold, 1975а, tables 8, 9; Bold, 1981, pp. 22, 110, table 15. Cytheretta ponceana Bold. Bold, 19715, p. 338, pl. 2, fig. 14, tables 4, 5; Bold, 1975c, table 4 [not Cytheretta ponceana Bold, 1969, p. 122, pl. 2, figs. 10a, b]. Diagnosis.— A reticulate, three-ribbed species of Cytheretta, with a strong anterior ridge and a median ridge that parallels the dorsal one in the posterior half of the carapace, but slants forward towards the ventral part of the anterior margin. Holotype. — НУН No. 8347. Type locality. — Loc. Н 15296, on Santiago-Las Ma- tas road, Dominican Republic (Bold, 1968, text-fig. 5). Stratigraphic horizon. — Gurabo Formation. Dimensions. —HVH No. 10569 (left valve), L: 0.67; H: 0.41 (loc. NMB 17011). Material. — About 30 specimens. Remarks. — C. dominicana and C. ponceana are very similar and only differ in the position of the median ridge, which 15 more oblique in C. ponceana. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Cercado, Gurabo, and Mao forma- tions (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Pleistocene: Cuba, Jamaica, Hispaniola. Cytheretta karlana Howe and Pyeatt Cytheretta karlana Howe and Pyeatt, in Howe et al., 1935, p. 34, pl. 1, figs. 30, 34, pl. 3, figs. 3, 4; Bold, 1946, p. 106, pl. 10, fig. 18; Swain, 1952, p. 46, pl. 6, fig. 19; Puri, 1954, p. 284, pl. 7, figs. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 47 5, 6; Bold, 1963d, p. 697; Bold, 1968, p. 55, pl. 3, figs. 7a, b, table 11; Bold, 1975a, table 15; Bold, 1976, table 4; Bold, 1978b, tables (22543: 10; Paracytheretta karlana (Howe and Pyeatt). Puri, 1952a, p. 209, pl. 40, figs. 3-5, text-fig. 8. Protocytheretta karlana (Howe and Pyeatt). Pooser, 1965, p. 38, pl. 12, figs. 3, 7-10; Gío-Argáez, 1982, pp. 47, 48, 107, pl. 4, fig. 13. Protocytheretta choctawatcheensis (Howe and Taylor). Bold, 1973a, table 1 [not Cytheretta karlana var. choctawatcheensis Howe and Taylor, in Howe et al., 1935, pl. 1, figs. 28, 29, 33]. Holotype. —HVH No. 1045. Type locality. —Tenmile Creek, below bridge on the Marianna-Clarksville road, Calhoun County, Florida. Stratigraphic horizon. — Chipola Formation (lower Miocene). Dimensions. —HVH No. 15117 (carapace), L: 0.80; H: 0.44; W: 0.41 (loc. H 15117 of Bold, 1968, text- fig. 6). Material. — Four specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Distribution. — Middle to upper Miocene: Gulf Coast, Guatemala, Cuba, Hispaniola. Family LOXOCONCHIDAE Sars, 1925 Genus LOXOCONCHA Sars, 1866 Species of the Loxoconchidae form such a closely- related group, that I here consider such genera as Loxocorniculum Benson and Coleman, 1963, Palmo- concha Swain and Gilby, 1974, Sagmatocythere Ath- ersuch, 1976, and Touroconcha Ishizaki and Gunther, 1976, as subgenera of the genus Loxoconcha. It should be noted that Palmoconcha appears to be restricted to soft-bottom sediments, usually of deeper-water envi- ronment, whereas all known species of Loxocornicu- lum are more or less restricted to carbonate environ- ments of shallow water. Subgenus LOXOCONCHA Sars, 1866 Loxoconcha (Loxoconcha) forda Bold Plate 7, figures 1, 2 Loxoconcha forda Bold, 1968, p. 70, pl. 3, figs. За-с, tables 4, 6, 8, 9, 11; Bold, 1969, table 1; Bold, 19715, tables 3-5; Bold, 1975c, table 4; Bold, 19754, table 1; Sánchez-Arango, 1977, p. 23, fig. 2; Kusnetzov et al., 1977, p. 53; Bold, 1981, p. 81, pl. 5, figs. 11a, b, table 15. Not Loxoconcha forda Bold. Herrig, 1977, p. 1260, pl. 2, fig. 5; Hanai, Ikeya, and Yajima, 1980, p. 189. Diagnosis. — A subquadrate to subcircular species of Loxoconcha that has its greatest width just below the center of the valves, around which is a concentric pat- tern of reticulation. Holotype. — HVH No. 8341. Type locality. — Loc. Н 15469, on Mao-Santiago Ro- dríguez road, 3 km W of the bridge over the Gurabo river (Bold, 1968, text-fig. 3). Stratigraphic horizon. — Gurabo Formation. Dimensions. — НУН No. 10583 (left valve), L: 0.51; H: 0.37 (loc. NMB 16178). Material. — About 50 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene and Pliocene: Great- er Antilles. Loxoconcha (Loxoconcha) spinoalata Bold Plate 7, figures 3, 4 Loxoconcha spinoalata Bold, 1946, p. 111, pl. 15, fig. 14; Bold, 1973b, table 1. Loxoconcha sp. aff. L. spinoalata Bold. Bold, 1975c, table 4. Diagnosis. — А subquadrate to subcircular species of Loxoconcha that has a bladelike spine just below the center of the valves. Holotype. — GIRU S 13058. Type locality. —Loc. W 206, outcrop on northern trail from Victoria de las Tunas to Vásquez, West Ori- ente, Cuba. Stratigraphic horizon. — Basal Paso Real Formation [or Arabos Member of the Güines Formation] (lower Мпосепе). Description. — Carapace in side view subquadrate to subcircular. Anterior end very blunt with almost straight dorsal slope; dorsal margin straight, ventral margin convex and broadly curving upward towards the posterior end, which is situated at about one-third of the height from the posterior cardinal angle and forms a short caudal process. Surface deeply pitted. A narrow ridge runs almost parallel to the ventral and posteroventral margin; above this ridge lies a bladelike lateral spine beginning at about two-fifths of the length from the anterior extremity and ending abruptly at about two-thirds of the length. Dimensions. — НУН No. 10584 (left valve), L: 0.46; H: 0.32 (loc. NMB 16135). Material. — Thirty-seven specimens. Remarks. — The material from the Cibao Valley con- sists of much smaller specimens than those from the lower Miocene of Cuba (L: 0.64) and from the Baya- guana and Laguana amber sites (south side of the Cor- dillera Central in the eastern Dominican Republic) (L: 0.57), or from the La Cruz Formation of Santiago de Cuba (L: 0.56). However, the overall similarity is such that at present no attempt is made to separate them. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Santiago): (Table 4). Bayaguana and Laguana amber sites: (Table 5). Distribution. — Lower Miocene to Pliocene: Cuba, Dominican Republic. 48 BULLETIN 329 Loxoconcha (Loxoconcha) runa Bold Plate 7, figures 13-15 Loxoconcha antillea var. oblongata Bold, 1946, p. 110 (part) [not pl. 15, fig. 5 = L. antillea Bold (male)]. Loxoconcha runa Bold, 1970b, p. 47, pl. 1, figs. 9a-d; Bold, 1972b, p. 430; Bold, 1978b, table 7; Bold, 1981, p. 81, pl. 5, figs. 5a, b, tables 2, 4. Loxoconcha antillea var. Bold, 19712, table 1. Diagnosis. — A slender species of Loxoconcha with several thin longitudinal ridges in the ventral part, one of which may become strongly alate just behind the middle. Dimensions. —HVH No. 10737 (left valve), L: 0.48; H: 0.27; W: 0.30 (loc. NMB 17189). Material. —Ten specimens. Remarks. — L. (L.) runa has many characters in com- mon with species of the genus Sagmatocythere Ath- ersuch, 1976, which I should consider as another sub- genus of Loxoconcha, but lacks the rather strong posteroventral alation. Occurrence. — Río Yaque del Norte (Baitoa, López): (Table 4). Bayaguana amber site: (Table 5). Distribution. — Lower to lower middle Miocene: Paso Real Formation: Cuba; Anguilla Formation: Lesser Antilles; Jealousy Formation: St. Croix; La Boca For- mation: Panama; lower Miocene: Costa Rica. Subgenus PALMOCONCHA Swain and Gilby, 1974 Loxoconcha (Palmoconcha) banesensis Bold Plate 7, figures 5-7 Loxoconcha banesensis Bold, 1946, p. 112, pl. 15, figs. 11a, b; Bold, 1957b, p. 245, pl. 4, fig. 13; Bold, 1958, table 1; Bold, 1963b, table 7; Bold, 1964, table 2; Bold, 1966a, table 1; Bold, 1966b, p. 7; Bold, 1967b, pl. 1, fig. 9, table 1; Bold, 1968, pl. 3, figs. 4a, b, tables 7, 8, 11; Bold, 1970a, p. 40, table 1; Bold, 1971a, table 2; Bold, 19715, tables 3, 5; Bold, 1972a, tables 2-4; Bold, 1973a, table 1; Bold, 1975a, table 11; Sánchez-Arango, 1977, table 2; Bold, 1981, p. 82, pl. 5, figs. 4a, b, tables 2, 3, 5-8, 10, 14, 15. Loxoconcha aff. banesensis Bold. Bold, 1966b, p. 5; Bold, 1978b, tables 1, 9. ?Loxoconcha aff. banesensis Bold. Hulings, 1967b, p. 650, figs. 4d, e, 6g. Loxoconcha aff. cubensis Bold. Lubimova and Sánchez-Arango, 1974, pl. 16, figs. 5, 5a. Diagnosis.— А species of Palmoconcha with two pronounced ventral keels, and a convex dorsal margin in the left valve. Holotype. — GIRU S 13059. Type locality.—Loc. T 1451, outcrop on shore of Bahia de Nipe, just west of Antilles, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (Jücaro Formation of Kozary, 1957, Ja- kus, 1983, p. 62). Dimensions. — НУН No. 10586 (right valve), L: 0.43; H: 0.26; HVH No. 10588 (carapace), L: 0.43; H: 0.27; W: 0.23 (loc. NMB 15979). Material. — More than 140 specimens. Remarks. —Species of Palmoconcha (such as P. lae- vimarginata Swain and Gilby, 1974, p. 325, pl. 5, figs. 10-13; P. minima Ishizaki and Gunther, 1976, p. 22, pl. 3, figs. 1, 2, 6-8, 13, text-fig. L. 3; L. (P.) polugari Finger, 1983, p. 100, pl. 1, figs. 8-11; L. wagneri Bold, 1960, p. 173, pl. 7, figs. 4a, b; L. sp. A of Bold, 1981, p. 83, pl. 5, figs. 1a, b) all have ventral keels, which are probably an adaptation to soft bottoms. These species are generally outer neritic to bathyal. Occurrence. —Rio Cana: Gurabo and Mao forma- tions (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Rio Yaque del Norte (Santiago): (Table 4). Distribution. — Lower Miocene to Recent: Caribbe- an. Subgenus LOXOCORNICULUM Benson and Coleman, 1963 In previous publications, I have rejected the genus Loxocorniculum because its separation from true Lox- oconcha appears artificial. There are apparently closely- related forms with and without dorsal tubercles, some with straight and some with curved dorsal margins. Here I want to accept Loxocorniculum, as a subgenus of Loxoconcha, forming a group of tropical and sub- tropical shallow-water species, mostly with a prefer- ence for carbonate substrates. Benson and Coleman (1963) gave the following di- agnosis for Loxocorniculum: Loxoconchid in shape; moderately to coarsely reticulate with horn- like protuberance on posterodorsum; hinge gongylodont. There has been a proliferation of species in this genus because: 1. Some authors have disregarded the ““mod- erate to coarsely reticulate" of the diagnosis and in- cluded almost smooth or slightly pitted forms; 2. Un- der slightly changing ecological conditions the size of the tubercles may change considerably. A first inkling of this was perceived by Bold (1946), when he distin- guished five varieties of Loxoconcha antillea Bold: the “normal” form, nodosa, oblongata (in part males), ru- gosa (exaggerated tubercles), and pteryga (large ventral tubercle), and tried to relate the amount of ornamen- tation to water chemistry and substrate (Bold, 1946, p. 48). In order to eliminate species added to the genus under 1, I want to emend the diagnosis as follows: А subgenus of Loxoconcha with the same characteristics as the genus except: a. presence of a posterodorsal tu- bercle; b. moderately to strongly reticulate; c. dorsal margin straight in both sexes; d. anterior end rather DOMINICAN REPUBLIC NEOGENE. 7: BOLD 49 angular, with two short, forwardly-diverging ridges, the upper one of which meets the anterior margin at the upper angulation, about median height. The presence of an eye-tubercle and one of two pos- teroventral tubercles or ridges can be used to subdivide the subgenus into groups of species: 1. eye-tubercle and two posteroventral tubercles: L. lienenklausi Bold, 1961, L. antillea Bold, 1946, L. fischeri (Brady, 1869) (Oligocene to Recent, Caribbean) (Pl. 7, figs. 9, 10); also L. longispina Keij, 1953 (Recent, Indopacific). 2. Eye-tubercle and one posteroventral tubercle: Loxo- corniculum tricornatum Krutak, 1971 (Pl. 7, fig. 8). 3. Eye-tubercle only: L. dorsotuberculata (Brady, 1866) (upper Miocene to Recent) (Pl. 7, fig. 11). The emended diagnosis would exclude such species as L. matagordensis Swain, 1955, L. purisubrhomboi- dea Edwards, 1944, L. lenticuloides Swain and Gilby, 1974, L. occidentale Bate, Whittaker, and Mayes, 1981, which are closer to true Loxoconcha (L. rhomboidea group) [see also Bate, Whittaker and Mayes, 1981, p. 52]. It would also exclude such species as L. runa Bold (Pl. 7, figs. 13-15) and L. spinoalata Bold, 1946 (Pl. 7, figs. 3, 4) which have straight dorsal margins and posteroventral ridges, but lack a prominent postero- dorsal tubercle, although posterodorsal ridges may be present, and also lack the anterior ridges. Loxoconcha (Loxocorniculum) dorsotuberculata (Brady) Plate 7, figure 11 Normania dorsotuberculata Brady, 1866, p. 383, pl. 61, figs. 14а-с [not figs. e-g]. Loxoconcha dorsotuberculata (Brady). Tressler, 1954, p. 435; Bold, 1966c, table 1; Bold, 1966d, p. 51, pl. 3, figs. 3a, b; Bold, 1968, tables 4-6, 9, 10; Bold, 19715, tables 1-5; Bold, 1972a, table 2; Bold, 1973b, p. 334; Lubimova and Sánchez-Arango, 1974, pl. 16, figs. 7, 7a; Bold, 1975a, tables 2, 3, 8, 11; Bold, 1975c, tables 2, 5; Bold, 1978b, table 9; Bold, 1981, p. 81. Loxoconcha sp. 1. Baker and Hulings, 1966, p. 114, pl. 1, fig. 12. Not Loxoconcha dorsotuberculata (Brady). Bold, 1946, p. 111; Bold, 1960, p. 901; Bold, 1963a, p. 696; Teeter, 1975, p. 478, figs. 19n, о, 20а [= Loxoconcha (Loxocorniculum) tricornata (Krutak, 197 1)]. Diagnosis. — A species of Loxocorniculum with pos- terodorsal tubercle only. Holotype. — Hancock Museum, Newcastle-upon- Tyne, England, U. K. Type locality. —“West Indies". Stratigraphic horizon. — Recent. Reference material. – НУН No. 8263. Reference locality. — Loc. P 16, Colón Harbor, Pan- ama (Bold, 1966d). Stratigraphic horizon. — Recent. Dimensions. — НУН No. 8263 (right valve), L: 0.61; H: 0.38 (loc. P 16, Panama, Recent); HVH No. 10592 (left valve), L: 0.46; H: 0.29 (loc. NMB 16985). Material. — Twenty-five specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Distribution. — Upper Miocene to Recent: Greater Antilles, Venezuela, Colombia, Costa Rica; Recent: Caribbean, Gulf of Mexico. Loxoconcha (Loxocorniculum) fischeri (Brady) Plate 7, figures 9, 10 Cythere fischeri Brady, 1869, p. 154, pl. 16, figs. 15, 16. Loxoconcha fischeri (Brady). Bold, 1963b, p. 393, pl. 8, figs. 8, 9; Bold, 1964, table 2; Bold, 1966b, p. 5; Bold, 1966c, tables 1, 2; Bold, 1966d, p. 51, pl. 3, fig. 7; Bold, 1966e, table 1; Bold, 1967b, table 1; Hulings, 1967b, p. 650, fig. 6g; Bold, 1968, tables 4, 6, 9, 10; Bold, 1969, table 1; Bold, 1971b, tables 2—6; Bold, 1972a, tables 2, 3; Bold, 1973a, table 1; Bold, 1973b, p. 334; Bold, 19752, table 12; Bold, 1975c, tables 2, 4; Bold, 1975d, table 1; Teeter, 1975, р. 447, figs. 18h, 19£ Bold, 19785, tables 8, 9. Loxocorniculum fischeri (Brady). Benson and Coleman, 1963, p. 39, pl. 7, fig. 4 [not fig. 3, text-figs. 24a—c]; Ishizaki and Gunther, 1976, p. 18, pl. 2, figs. 9-12, pl. 4, fig. 1. Loxoconcha magna Teeter, 1975, p. 477, figs. 19j-m, 20е [not L. magna Stancheva, 1972, p. 103, pl. 3, fig. 1; not L. megapora magna Hartmann, 1974, p. 299, pl. 66, figs. 498-507 (= 21. те- gapora Benson and Maddocks, 1964)]. Not Loxoconcha fischeri (Brady). Bold, 1957b, p. 224, pl. 2, fig. 7; Bold, 1958, table 1 [= Loxoconcha antillea Bold, 1946]; Kon- trovitz, 1978, p. 146, pl. 4, fig. 4. Diagnosis. — A species of Loxocorniculum with two posteroventral tubercles. Holotype. — Hancock Museum, Newcastle-upon- Tyne, England, U. K. (Bold, 1963b, pl. 8, fig. 9). Type locality. — Colón Harbor, Panama. Stratigraphic horizon. — Recent. Reference material. —HVH No. 8264. Reference locality. — Loc. P 16, Colón Harbor, Pan- ama (Bold, 1966d). Dimensions. – НУН No. 10591 (left valve, female), L: 0.55; H: 0.34; HVH No. 10590 (right valve, male), L: 0.57, H: 0.32 (loc. NMB 17011). Material. — More than 200 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene to Recent: Greater Antilles, Trinidad, Venezuela, Colombia, Panama, Costa Rica, Mexico. Loxoconcha (Loxocorniculum) tricornata (Krutak) Plate 7, figure 8 Normania dorsotuberculata var. Brady, 1866, p. 383, pl. 61, figs. 14e-g [not 14a—c]. Loxocorniculum fischeri (Brady). Benson and Coleman, 1963 (part), text-figs. 21a-c. Loxocorniculum tricornatum Krutak, 1971, р. 20, pl. 3, figs. la—c; Krutak and Rickles, 1979, p. 269, pl. 1, figs. 8-13, tables 2, 3, text-fig. 4; Krutak, 1982c, p. 273, pl. 4, figs. 7-12. Loxoconcha oculocrista Teeter, 1975, p. 479, figs. 20d, 21a-c. Loxoconcha suboculocrista Teeter, 1975, p. 479, figs. 20b, 21d-f. Diagnosis. — A species of Loxocorniculum with one posteroventral tubercle. Holotype. —HVH No. 9046. Type locality. —Station 4 of Krutak (1971), Laguna Mandingo, Mexico. Stratigraphic horizon. — Recent. Reference material. —H VH Nos. 9038-9041. Reference locality. — Belize. Stratigraphic horizon. — Recent. Dimensions. – НУН No. 10589 (left valve), L: 0.56; H: 0.36 (loc. NMB 16103). Material. — Five specimens. Remarks. — Comparison ofthe type material of Kru- tak and Teeter in the HVH collections shows that there are only very slight differences between the material from Mexico and Belize, which are probably indicative of minor environmental changes. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Miocene and Pliocene: Dominican Republic; Recent: Gulf of Mexico, Belize. Loxoconcha (Loxocorniculum) antillea Bold Loxoconcha antillea Bold, 1946, p. 110, pl. 13, figs. 3a-c; Bold, 1965b, p. 402, pl. 4, figs. 3a, b; Bold, 1968, table 11; Bold, 1970b, tables 1, 3; Bold, 1971a, table 2; Bold, 19722, table 2; Bold, 19725, p. 430, tables 2, 4; Bold, 1973a, table 1; Bold, 1975d, table 4; Bold, 1978b, table 3; Bold, 1981, tables 3, 10; Steineck, 1981, table 2; Steineck et al., 1984, fig. 5; Bold, 1982, tables 2, 3, 4. Loxoconcha fischeri (Brady). Bold, 1957b, p. 244, pl. 2, fig. 7; Bold, 1958, table 1 [not Cythere fischeri Brady, 1869, p. 154, pl. 18, figs. ES 16]. Holotype. — GIRU S 13053. Type locality. — Loc. W 206, West Oriente Province, Cuba (Bold, 1946, p. 127; Bold, 1973a, p. 1480). Stratigraphic horizon. — Paso Real Formation (lower Miocene). Dimensions. —HVH No. 10791 (carapace), L: 0.49; H: 0.28; W: 0.31 (Laguana amber site). Material. —Seven specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Laguana amber site: (Table 5). Distribution. — Lower to upper Miocene: Caribbean. Loxoconcha (Loxocorniculum) rugosa Bold Loxoconcha antillea var. rugosa Bold, 1946, p. 110, pl. 15, figs. 6a, b. Loxoconcha rugosa Bold. Bold, 1957b, p. 244, table 1; Bold, 1963b, p. 394, pl. 8, fig. 7; Baker and Hulings, 1966, p. 122, pl. 2, fig. 11; Bold, 1968, tables 7, 9, 11, 12; Bold, 1970b, table 3; Bold, 1972a, BULLETIN 329 table 2; Bold, 1975c, tables 4, 8; Bold, 1978b, table 9; Bold, 1981, р. 81, pl. 5, fig. 8, table 15; Breman, 1982, p. 237. Holotype. — GIRU S 13057 (Bold, 1946, pl. 15, figs. 6a, b). Туре locality. —Loc. T 1451, outcrop on shore of Bahia de Nipe, west of Antilles, Oriente Province, Cuba (Bold, 1973a, p. 148). Stratigraphic horizon. —Jücaro Formation of Ko- zary (1957) [in Jakus, 1983, p. 62] (upper Miocene). Dimensions. —HVH No. 10792 (left valve), L: 0.57; H: 0.41 (loc. NMB 17189). Material. — Five specimens. Occurrence. — Río Yaque del Norte (López): (Table 4). Distribution. — Lower Miocene to Recent: Caribbe- an. Subgenus TOUROCONCHA Ishizaki and Gunther, 1976 Loxoconcha (Touroconcha) lapidiscola Hartmann? Plate 7, figure 12 ?Loxoconcha lapidiscola Hartmann, 1959, p. 223, pl. 41, figs. 128- 129, pl. 42, figs. 131-133; Bold, 1966d, p. 51, pl. 4, figs. 8a, b; Swain and Gilby, 1974, p. 324, pl. 5, figs. 9a, b; text-fig. 24; Bold, 1978b, table 9. Loxoconcha lapidiscola Hartmann. Bold, 1963b, p. 394, pl. 8, fig. 6. Not Loxoconcha lapidiscola Hartmann. Swain, 1969, p. 469, pl. 6, figs. 6a, b, pl. 11, fig. 11. ?Touroconcha lapidiscola (Hartmann). Ishizaki and Gunther, 1976, р. 20, pl. 1, fig. 10, pl. 3, figs. 10, 11; Bate, Whittaker, and Mayes, 1981, p. 48, figs. 30I-L, 310, H, 32A. Diagnosis. — А species of Touroconcha with an or- namentation reminiscent of Kangarina Coryell and Fields, 1937. The posteroventral reticulum has a smooth or only very slightly irregular lower ridge. Reference material. —H VH No. 6875. Reference locality. — Biche Quarry, Trinidad. Stratigraphic horizon. — Upper Miocene. Dimensions. — HVH No. 10593 (left valve), L: 0.45; H: 0.27 (loc. NMB 16995). Remarks. —Bate, Whittaker, and Mayes (1981) con- sidered L. /apidiscola of Bold (1963b) as different from Hartmann's species because of the absence of an in- dentation in the posteroventral reticulum. This inden- tation 1s absent in most of the Caribbean material, although there are occasional female specimens with a very weak indentation (Pl. 7, fig. 12). АП the males and all molts show a perfectly smooth border of the ventral side of the reticulum. This Caribbean form does not change from the late Miocene form through- out the Pliocene and is still the same in Recent ma- terial. However, in the Rio Banano Formation of the Limön Basin (Costa Rica) and in Recent material from Colön Harbor (Panama), the posteroventral ridge is indented or even interrupted in the females, but is ————————————Á—— — DOMINICAN REPUBLIC NEOGENE. 7: BOLD 51 smooth in males and molts. This indentation is also absent in Swain and Gilby's male specimen (1974, pl. 5, fig. За) and in the male 7. /apidiscola of Ishizaki and Gunther (1976, pl. 3, fig. 9). On the other hand, the form figured by Bate, Whittaker, and Mayes (1981, figs. 3I, J, M) from the Galapagos shows an indentation in both males and females. If Bate, Whittaker, and Mayes are right, we may have three different subspecies of L. (T.) lapidiscola: a Central American form (with indentation in the female only); a Caribbean form (without indentation), and a Galapagos form (with in- dentation in both male and female). However, the dif- ference is very slight and could easily be produced by adaption to different substrates. Molts of the Caribbean form show a remarkable similarity to T. mosquera Bate, Whittaker, and Mayes, 1981 (p. 45, figs. 31a-f, i-n, 32d, 33a), and adults of the same ornamentation have been found in the Ague- guexquite Formation (Pliocene) of Mexico. These show the more pronounced secondary reticulum of the two male specimens described by Bate, Whittaker, and Mayes (1981). Also the male left valve figured by Ish- izaki and Gunther (1976, pl. 3, fig. 9) is very similar to T. mosquera, but the female right valve (pl. 3, fig. 10) appears identical to that of the Caribbean form. In view ofthe minor morphological differences ofthe four forms involved, I prefer to treat them as a single species and consider the minor inconsistencies as environ- mentally-induced. Later studies may decide whether different subspecies can be recognized. At present the distribution of the three forms of L. (T.) lapidiscola (Text-fig. 11) is not quite consistent with the idea of geographic subspecies. Material. — About 20 specimens. Occurrence. —Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Upper Miocene to Recent: Mexico, Cuba, Jamaica, Hispaniola, Trinidad, Barbados, Ven- ezuela; Recent: Antigua, north coast of Venezuela, “баб. май: [ | - | 60 | 20204-22 det E --т: | | | | | S | [epe Ho т "ad; A 52 Y NE E NN ~ Р Ja N — ep U. Mioc.-Plio. | Я Е R Pleist. = At ER "A AR лу e 9 9 o еу „Рћо.- ipe R AR AA UMATA | ES U. Mioc. Pleisto. -Plio) 4 у С Му i : 2 bo са 2 T Miles “Ж 0 200 400 60 : ice [es |ры SENT s ; У о 400 800 4 А Kilometers Hae A | UR | ы Sur Text-figure 11.— Distribution of Loxoconcha (Touroconcha) Ishizaki and Gunther, 1976, in the Caribbean and the Pacific coast of Central America. R = Recent; [1 = L. (T.) mosquera; A = L. (T.) lapidiscola, Caribbean form; A = L. (T.) lapidiscola, Central American form; © = L. (T.) lapidiscola, Galapagos form. See above for discussion of the three forms of L. (T.) lapidiscola. Miskito Keys (Nicaragua). The fossil occurrences are generally of one or two specimens, rarely up to 10, and the Recent ones show much the same (Hartmann re- ported nine specimens, Swain and Gilby two, Ishizaki and Gunther over 20). I have found only one abundant occurrence, on the beach of Chichiriviche (Falcón, Venezuela) with 28 females, 13 males and 12 molts. Genus PHLYCTOCYTHERE Keij, 1958 Phlyctocythere curva, new species Plate 12, figures 19, 20, Text-figure 12 Etymology of name. —(L.) curvus = bent [because of the sinuous dorsal outline]. Diagnosis. — A species of Phlyctocythere with strong- ly sinuous dorsal margin and a faint reticulate pattern in the anterior part of the valves. Holotype. —HVH No. 10600 (right valve). Paratypes. — HVH No. 10601 (left valve); HVH No. 10602 (carapace, five right valves, two left valves). Type locality. — Loc. NMB 16156 (Rio Gurabo). Stratigraphic horizon. — Gurabo Formation, calcar- eous siltstone, about 80 m above the base. Description. — Carapace irregularly ovate, highest just in front of the middle; shell very thin and fragile. An- terior margin slightly obliquely-rounded; dorsal mar- gin sinuous, convex in front of the middle, concave in the posterior half; ventral margin slightly concave in front of the middle, curving upward into the posterior margin. Posteroventral margin sharply keeled. Poste- rior end situated slightly above the middle, somewhat turned upward in a pronounced caudal process. The posteroventral keel is obliquely truncate and straight from the posterior end to a blunt angulation near the ventral outline. Left valve overlapping the right along the dorsal margin. Dorsal view spindle-shaped, widest just in front of the middle, ends compressed. Surface of the valves smooth, with scattered orifices of normal pore canals, except for a faint reticulate pattern near the anterior end and a few faint wrinkles parallel to the posteroventral margin. Eyespot slightly elevated. Inner lamella broad in anterior end; zone of con- Text-figure 12. — PAlyctocythere curva, n. sp. НУН No. 10602, loc. NMB 17011, Gurabo Formation, Río Cana section. Interior of left valve, x150. BULLETIN 329 crescence narrow, with few, wide-based, often bifur- cating, radial and false radial pore canals; vestibule very wide. In the posteroventral margin, false radial canals extend into the keel, sometimes bifurcating. Ad- ductor muscle scars form a short, compact, slightly curved row of four scars; frontal scar very small, ir- regularly-rounded. Hinge weak, in the left valve con- sisting of a long, curved, very slightly crenulate bar with terminal, elongate, slightly crenulate sockets. Dimensions. – НУН No. 10602 (carapace), L: 0.43; H: 0.25; W: 0.20 (loc. NMB 17011). Remarks. — Phlyctocythere eocenica Кей), 1958 (р. 72, pl. 1, figs. 11-12) has the same general outline, but the dorsal margin 15 more regularly curved and the posterior end is less attenuate. Keij mentions no dif- ferentiation of the hinge. P. caudata Hartmann, 1979 (p. 241, pl. 2, figs. 12-16, text-figs. 76-84) is almost identical in outline, but the posteroventral outline of the valve (above the keel) is straight instead of regularly curved, and on the other hand the keel 1s curved instead of truncate. That species also lacks the anterior retic- ulation. Nevertheless the resemblance between the Re- cent Australian form and the fossil Dominican one is very striking, especially as concerns internal features of hinge and marginal area. Material. — Thirty-eight specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Yaque del Norte (Santiago): (Table 4). Phlyctocythere stricta, new species Plate 12, figures 15, 16 Etymology of name. —(L.) strictus = straight [after the straight dorsal margin]. Diagnosis. — A species of Phlyctocythere with straight dorsal margin and subdorsally-located caudal process. Holotype. — НУН No. 10594 (left valve). Paratype. —HVH No. 10595 (right valve). Type locality. — Loc. NMB 17183 (Río Gurabo). Stratigraphic horizon. — Gurabo Formation. Description. — Carapace short, subrectangular, great- est height at anterior cardinal angle, at two-sevenths Text-figure 13.— PAlyctocythere recta, n. sp. НУН No. 10602, loc. NMB 17010, Gurabo Formation, Río Cana section. Interior of right valve, x150. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 33 of the length from the anterior extremity. Shell very thin and fragile. Anterior margin almost regularly rounded in both valves; ventral margin slightly sinuate, posteroventral margin converging rapidly toward the subdorsally-located caudal process in a convex curve, bearing a thin, broadly rounded keel; posterior end rather blunt, margin almost straight below, concave above. Left valve barely overlapping the right, a little more strongly anterodorsally. Dorsal view spindle- shaped, widest about the middle, ends compressed. Surface smooth with scattered orifices of normal pore canals, except for a few wrinkles close and parallel to the posteroventral margin. Hinge weak, only consisting of a bar in the right valve and a corresponding groove in the left. Marginal area broad anteriorly with wide vestibule. Pore canals few with wide bases, mostly not quite reaching the outer margin, and mostly paired. Posteroventral inner lamella wide with indented, paired, marginal pore ca- nals. Dimensions. — HVH No. 10595 (right valve), L: 0.46; H: 0.28 (loc. NMB 17183). Material. — About 20 specimens. Remarks. — Marginal area very similar to that of P. curva, but hinge more simple. Occurrence. — Ело Gurabo: Gurabo and Mao for- mations (Table 2). Río Yaque del Norte (Arroyo Ló- pez): (Table 4). Phlyctocythere recta, new species Plate 12, figures 17, 18; Text-figure 13 Etymology of name. —(L.) rectus — straight [because of the completely straight dorsal outline]. Diagnosis. — A species of Phlyctocythere with straight dorsal margin and continuous, slightly-upturned pos- terior end. Holotype. —HVH No. 10596 (left valve). Paratypes. —HVH No. 10597 (right valve), НУН No. 10598 (left valve). Type locality. — Loc. NMB 17011 (Río Cana). Stratigraphic horizon. — Gurabo Formation. Description. — Carapace subrectangular, highest at one-third of the length from the anterior extremity. Text-figure 14.— Phlyctocythere sp. 1. HVH No. 10603, loc. NMB 16108, Mao Formation, Río Gurabo section. Exterior of right valve, x125. Anterior end regularly rounded, dorsal margin straight, slightly concave at posterior end in left valve; ventral margin almost straight, posteriorly converging towards the dorsal and swinging upward into an almost straight posterior margin; posterior end a dorsally-situated cau- dal process. Ventral and posterior margins possess a very thin keel, which forms posteroventrally a wider curve. Interior very similar to P. stricta. Dimensions. —HVH No. 10596 (left valve, holo- type), L: 0.43; H: 0.23; HVH No. 10597 (right valve), L: 0.43; H: 0.27 (loc. NMB 17011). Material. — About 20 specimens. Remarks. — This species is very similar to P. stricta and was first thought conspecific; however, the position of the posterior end is different. It might possibly be a dimorph of that species. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Phlyctocythere species 1 Text-figure 14 Description. — Carapace subovate, highest around the middle. Anterior margin evenly rounded; dorsal mar- gin gently convex, ventral margin slightly sinuate, broadly curving upward into the posterior margin; pos- terior end located above the middle, posterodorsal margin concave. Marginal area broad with narrow an- terior vestibule, where there are about 11 false radial pore canals, some of which bifurcate; in the postero- ventral area the line of concrescence is more irregular with few, wide-based, false radial canals. Muscle scars form a posterior row of four elongate scars with a small frontal scar and two mandibular scars of which the posterior one is situated almost directly below the ad- ductor group. Dimensions. — HVH No. 10603 (right valve), L: 0.41; H: 0.23 (loc. NMB 16108). Material. — Five specimens. Remarks. —Similar in outline to P. stricta, but the posterior end is lower and the anterior marginal area has a narrower vestibule; line of concrescence ante- 0 200 Text-figure 15.— PAlyctocythere sp. 2. НУН No. 10608, station 1138 of Drooger and Kaasschieter (1958), Paria shelf, off Trinidad. Exterior of left valve, x160. riorly not indented at the base of the pore canals. P. Јаротса Ishizaki, 1981 (p. 62, pl. 11, fig. 13, pl. 12, fig. 10, pl. 13, figs. 11, 12, 13a, b, pl. 14, fig. 4 [= ?P. hamanensis Ikeya and Hanai, 1982, p. 52, pl. 4, figs. 1—4, pl. 6, figs. 12, 13, text-figs. 17a, b]) is similar in outline, but has a blunter posterior end and more evenly-rounded anterior end. Occurrence. — Río Gurabo: Mao Formation (Table 200 Phlyctocythere species 2 Text-figure 15 Description. — Carapace subovate to subrectangular. Anterior margin regularly rounded; dorsal margin straight, ventral margin slightly sinuate, parallel; pos- terior end just above median height, posterior margin straight above, somewhat irregular below. Marginal area as in P. stricta. Muscle scars form a vertical row of four small, elongate adductor scars with a single frontal scar and two mandibular scars. Dimensions. — НУН No. 10605 (right valve), L: 0.46; H: 0.29 (loc. NMB 17011). Material. — Twelve specimens. Remarks. —' The species differs from P. stricta by its lower posterior end. It might be the same species as the one described as Pellucistoma tumida Puri, 1954 (p. 290, pl. 15, fig. 5, text-fig. 12b; Hulings, 1967b, p. 651, fig. 6n) and as Pseudocythere aff. fragilis Sars by Kontrovitz (1976). Specimens in Rothwell’s collection from the Gulf of Mexico (HVH No. 6357) collected at a depth between 40 and 430 m are identical to Phlyc- tocythere sp. 2, which has also been found at 65 m depth on the leeward side of the Alacran reef. Unfor- tunately this species cannot be identified with certainty as P. tumida (Puri), because the holotype of this species is a fragmented valve and repicking of the type sample failed to produce more specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2), Distribution. — Recent: Gulf of Mexico. Family CYTHERURIDAE Miüller, 1894 Subfamily CYTHERURINAE Miller, 1894 Genus CYTHERURA Sars, 1866 Cytherura cresera Bold Plate 8, figure 1 Cytherura стезета Bold, 1968, p. 71, pl. 7, figs. 3a-d; Bold, 1971b, table 5. Diagnosis. — An alate species of Cytherura with rel- atively coarse reticulation and a double dorsal ridge extending backwards from the eye tubercle. Holotype. — НУН No. 8326. BULLETIN 329 Type locality. — Loc. H 15212, Maury's locality 1 on the Río Mao, Dominican Republic (Bold, 1968, text- fig. 4). Stratigraphic horizon. —Gurabo Formation (Plio- cene). Dimensions. – НУН No. 8326 (left valve, holotype), L:0.41; H: 0.22; W: 0.14; HVH No. 10609 (right valve), L: 0.36; H: 0.20 (loc. NMB 17011). Material. — Fourteen specimens. Occurrence. — Rio Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pliocene: Domin- ican Republic, Jamaica. Cytherura species aff. C. swaini Bold Plate 8, figure 2 Diagnosis. — А longitudinally-ribbed species of Cytherura, less elongate than C. swaini Bold, 1963b (p. 395, pl. 9, figs. 4a, b), and having the caudal process at median height instead of subventrally; fairly coarse anterior dentition. Dimensions. — HVH No. 10610 (right valve), L: 0.33; H: 0.17 (loc. NMB 16090). Material. — Six specimens. Occurrence. —Río Gurabo: Mao Formation (Table 2), Cytherura species А Plate 8, figure 3 Diagnosis. — A species of Cytherura with long ventral ridge, no eye spot and longitudinal anterior ridges that become obscure in the center of the carapace. Dimensions. —H VH No. 10611 (left valve), L: 0.34; H: 0.17 (loc. NMB 17011). Material. — Four specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Cytherura species C Plate 8, figures 4, 5 Diagnosis. — A species of Cytherura with a narrow- ribbed coarse reticulum enclosing numerous small pits, generally longitudinally-arranged. Dimensions. – НУН No. 10613 (left valve), L: 0.31; H: 0.16 (loc. NMB 15983). Material. — Five specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Río Yaque del Norte (López): (Table 4). Cytherura species D Plate 8, figure 6 Diagnosis. —А species of the Cytherura johnsoni group (Mincher, 1941, p. 343, pl. 47, figs. 1а-а) with DOMINICAN REPUBLIC NEOGENE. 7: BOLD 33 low longitudinal ridges in a fairly wide reticulum; an- terior end blunt and high, posterior caudal process at median height. Dimensions. — HVH No. 10614 (left valve), L: 0.40; H: 0.23 (loc. NMB 16156). Material. — Two specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Cytherura species G Plate 8, figures 7, 8 Diagnosis. — A species of Cytherura with relatively coarse reticulation in the posteroventral area, which projects over the ventral margin. Dimensions. —HVH No. 10616 (right valve), L: 0.40; H: 0.22; HVH No. 10615 (left valve), L: 0.41; H: 0.23 (loc. NMB 16148). Material. — Five specimens. Remarks. — This species is close to Serrocytherura panamensis Ishizaki and Gunther, 1974 (p. 34, pl. 1, fig. 12, pl. 4, figs. 11—14, pl. 5, figs. 13, 14, text-figs. 19, 20), especially in the development of the postero- ventral area, but differs by coarser reticulation and details ofthe ridge pattern. It is, however, possible that those differences are caused by intraspecific variation within a range of environments. Occurrence. — Río Gurabo: Gurabo Formation: (Ta- ble 2); Río Yaque del Norte (Santiago): (Table 4). Cytherura species H Plate 8, figure 9 Diagnosis. — A species of Cytherura with subrectan- gular carapace, dorsal margin nearly straight and par- allel to ventral, caudal process subdorsally; ornamen- tation with longitudinal ridges, the most prominent one of which forms a wide V with the lowest point just below the center of the carapace. Dimensions. —HVH No. 10617 (left valve), L: 0.28; H: 0.15 (loc. NMB 17010). Material. — Two specimens. Occurrence. — Río Cana: Gurabo Formation: (Table 1). Cytherura species I Plate 8, figure 10 Diagnosis.— А species of the Cytherura johnsoni group (Mincher, 1941, p. 343, pl. 47, figs. 1a-d) with a fine, but wide-meshed reticulation and a dominant pattern of longitudinal ridges; dorsal margin less curved than in C. johnsoni Mincher, 1941, and greatest height situated more anteriorly. Dimensions. — НУН No. 10618 (left valve), L: 0.27; H: 0.13 (loc. NMB 17003). Material. — Two specimens. Remarks. — Anterior end is less high and blunt than in Cytherura sp. D. It also shows some similarity to Cytherura sp. А, but lacks the prominent ventral ridge. Occurrence. — Río Cana: Cercado Formation (Table 1). Cytherura sp. B and C. sp. F occur as single speci- mens only and are not recorded in the distribution charts. Cytherura sp. B, from the Mao Formation of the Río Gurabo, is illustrated for the record (Pl. 8, fig. 11). Genus SEMICYTHERURA Wagner, 1957 Semicytherura species aff. S. arayaensis Bold Plate 8, figures 12, 13 Diagnosis. — А species of Semicytherura with verti- cal to oblique ridge pattern in the posteroventral por- tion of the carapace, and very fine punctation in the fossae of the reticulation. Dimensions. — HVH No. 10619 (right valve), L: 0.38; H: 0.21 (loc. NMB 16054); HVH No. 10620 (left valve), L: 0.36; H: 0.22 (loc. NMB 16031). Material. — Four specimens. Remarks. — S. arayaensis Bold, 1966c (p. 31, pl. 4, figs. 3a, b) lacks the fine punctation within the fossae, and the loops formed by posteroventral ridges on both sides of a heavy vertical ridge are flatter. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Semicytherura species А Plate 8, figures 14-16 Diagnosis. — A species of Semicytherura with prom- inent eye spot, placed rather far backwards at the end of a short anterodorsal ridge. Widest at one-third of the length from the posterior at a prominent vertical ridge from which several ridges strike forward, slightly diverging from the ventral margin and converging to a fairly prominent median ridge. Surface finely retic- ulate. Dimensions. — НУН No. 10623 (right valve), L: 0.34; H: 0.19 (loc. NMB 16148); HVH No. 10621 (left valve), L: 0.35; H: 0.19 (loc. NMB 16973). Material. — Sixteen specimens. Remarks. — This species differs from S. arayaensis Bold, 1966c, and 5. sp. aff. 5. arayaensis by the flat, elongate-triangular area between the median ridge and the ventral ridges in the center of the valves, while the reticulation is much finer. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). 56 BULLETIN 329 Genus HEMICYTHERURA Elofson, 1941 Hemicytherura bradyi (Puri) Plate 8, figure 18 Kangarina, n. sp. 2. Puri and Hulings, 1957, p. 188, fig. 11. Kangarina bradyi Puri, 1960, p. 119, pl. 4, figs. 6, 7; Baker and Hulings, 1966, p. 144. Hemicytherura cranekeyensis Puri. Bold, 1968, p. 72 (part), pl. 7, fig. 7b [not fig. 7a]; Bold, 1975c, tables 2, 4 (part); Bold, 1978b, table 9 (part). Hemicytherura bradyi (Puri). Maddocks, 1974, p. 210, pl. 4, figs. 14—17; Teeter, 1975, p. 470, figs. 161, 17m; Bold, 1975a, table 5. Diagnosis. — А species of Hemicytherura with very coarse reticulum, showing three wide fossae above a median ridge and four to six ventral fossae below it; vertically-elongate reticulum in posterior part. Holotype. —HVH No. 4739. Type locality. —Shore sand, Bahia Honda, Florida. Stratigraphic horizon. — Recent. Dimensions. — HVH No. 10624 (right valve), L: 0.29; H: 0.19 (loc. NMB 16978). Material. — More than 100 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Distribution. — Upper Miocene to Recent: Caribbe- an, Gulf of Mexico. Hemicytherura cranekeyensis Puri Plate 8, figure 17 Cytherura clathrata Sars. Bold, 1946, p. 118, pl. 14, figs. 9a, b, 10a, b [not C. clathrata Sars, 1866, p. 77]. Hemicytherura videns (Müller). Bold, 1957b, p. 245 (part) [not pl. 4, fig. 12]; Bold, 1966b, p. 7 [not Cytheropteron videns Müller, 1894, p. 383, pl. 29, figs. 2, 8]. Kangarina sp. 1. Puri and Hulings, 1957, pp. 183, 188, fig. 11. Hemicytherura cranekeyensis Puri, 1960, p. 115, pl. 4, figs. 4, 5; Benda and Puri, 1962, p. 336, pl. 4, fig. 12; Hulings and Puri, 1964, p. 320, figs. 11, 17; Bold, 1966c, table 2; Morales, 1966, p. 53, pl. 4, figs. 8a, b; Bold, 1968, p. 72 (part), pl. 7, fig. 7a [not fig. 7b]; Bold, 1970a, table 1; Teeter, 1973, table 1; Teeter, 1975, p. 469, figs. 16b, 171; Bold, 1975a, tables 12, 15; Bold, 1975c, tables 2, 4, 5 (part); Bold, 1978b, table 9 (part). Hemicytherura aff. cranekeyensis Puri. Bold, 1967b, table 1. Hemicytherura sp. Bold, 1963b, p. 398, pl. 9, fig. 5. ?Hemicytherura cranekeyensis Puri. McKenzie and Swain, 1967, p. 201, pl. 28, figs. 27a, b, text-fig. 12; Lubimova and Sánchez- Arango, 1974, p. 112 (part?), pl. 18, figs. 3, 3a. Not Hemicytherura cranekeyensis Puri. Swain, 1969, p. 463. Diagnosis. — A species of Hemicytherura with a re- ticulum consisting of two central, three anterior, two or three ventral meshes, and one posterior mesh. Holotype. —HVH No. 4738. Type locality. — Shore sand, Bahia Honda, Florida. Stratigraphic horizon. — Recent. Dimensions. — НУН 10625 (carapace), L: 0.29; Н: 0.18; W: 0.13 (loc. NMB 16978). Material. — About 40 specimens. Occurrence. — Rio Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Middle Miocene to Recent: Carib- bean; Recent: Gulf of Mexico, possibly also present on Pacific coast of North America. Hemicytherura species Plate 8, figure 19 The two identified species of Hemicytherura are nearly always accompanied by immature molts, prob- ably belonging mostly to H. bradyi. However, some of them reach a size that is only slightly less than that of the adults of either species. These have been separated on the distribution charts and are figured as a matter of record. Dimensions. —HVH No. 10627 (carapace), L: 0.26; H: 0.17; W: 0.12 (loc. NMB 16978). Material. — About 30 specimens. Occurrence. — Río Cana: Cercado, Gurabo, and Mao formations (Table 1). Río Gurabo: Gurabo Formation (Table 2). Genus EUCYTHERURA Müller, 1894 Eucytherura ex gr. complexa (Brady) Plate 9, figures 1-4 ?Cythere complexa Brady, 1867, p. 210; Brady and Norman, 1889, р. 145, pl. 19, fgs. 31, 32. ?Eucytherura complexa (Brady). Müller, 1894, p. 306, pl. 20, figs. ОЕ; Eucytherura aff. complexa (Brady). Keij, 1954, p. 228, pl. 5, figs. 13, 14; Bold, 19722, table 4. Eucytherura sp. 1. Drooger and Kaasschieter, 1958, p. 89. Eucytherura complexa (Brady). Bold, 1963b, p. 389, pl. 9, figs. 2a, b; Bold, 1966c, p. 14, table 2; Bold, 1967b, table 1; Bold, 1972a, table 2. Eucytherura ex gr. complexa (Brady). Bold, 1978b, table 9. Not Eucytherura complexa (Brady). Bold, 1957b, p. 245, pl. 4, fig. 14. Not Eucytherura complexa (Brady). Ishizaki and Gunther, 1974, p. 44, pl. 1, figs. 1—3, pl. 2, figs. 1, 2, text-fig. 26. Diagnosis. — А subquadrate species of Eucytherura with a strong, vertical, posterior ridge, prominent ven- tral ridge and subcentral tubercle. Reference material. —H VH No. 10627. Reference locality. — Orinoco-Paria shelf, Venezue- la. Stratigraphic horizon. — Recent. The material con- sidered under this name was collected by the Paria— Trinidad-Orinoco shelf expedition (see Drooger and Kaasschieter, 1958; Fithian, 1980). Dimensions. — Recent material: HVH No. 10627 (left valve), L: 0.31; H: 0.18 (Station 1021 of Drooger and * Designated as Eucytherura dilatata Müller, 1894 in explanation of plate. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 57 Kaasschieter, Orinoco-Paria shelf); HVH No. 10628 (right valve), L: 0.30; H: 0.17 (same locality). Fossil material: HVH No. 10629 (left valve), L: 0.26; H: 0.17 (loc. NMB 16964); HVH No. 10630 (right valve), L: 0.26; H: 0.17 (loc. NMB 16132). Material. — Twenty-four specimens. Remarks. —'The posterior ridge is similar to that in the European forms (Brady and Norman, 1889; Mül- ler, 1894) and 15 lacking in Ishizaki and Gunther's figures. However, there are some differences, which appear to be too consistent to be explained by intra- specific variation, e.g., the coarser anterior dentition of the Caribbean species and the irregularly-nodose development of the posterior part of the ventral ridge. Within the Caribbean material there is also some vari- ation which is probably phenotypic, e.g., the size of the eye tubercle (larger than those of the European form, and probably dependent on the depth at which the species lived), and the size of the ridge connecting the subcentral and eye tubercle. The Recent specimens from the Venezuelan shelf are somewhat larger than the fossil specimens from Trinidad and the Dominican Republic. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Domini- can Republic, Trinidad, Venezuela, Colombia, Pana- ma, Costa Rica; Recent: Gulf of Mexico. Rothwell (1949) found almost identical specimens (HVH No. 6347) over a depth range of 40-250 m, with a few deeper records, but concentrated around 90 m. Eucytherura fithianae, new species Plate 9, figure 5 Etymology of name. — After Patricia A. Fithian (Shell Oil Co., Houston, TX), who discovered this species on the Paria shelf. Diagnosis. — А species of Eucytherura with a trian- gular ridge pattern with the apex near the ventral mar- gin, somewhat behind the middle, and one corner near the posterior cardinal angle. Holotype. —HVH No. 10631 (right valve). Paratype. —HVH No. 10632 (right valve). Type locality. — Loc. NMB 17183 (Río Gurabo). Stratigraphic horizon. —Gurabo Formation (Plio- cene). Description. —Carapace rectangular with pro- nounced anterior cardinal angle. Anterior margin al- most evenly rounded, except for a small concavity just below the anterior cardinal angle; dorsal and ventral margins almost straight and parallel; posterior end a subdorsal caudal process. Greatest width at two-fifths of the length from the posterior extremity. From this point near the ventral margin, a conspicuous ridge runs up to a very short dorsal ridge at the posterior cardinal angle, while perpendicular to this ridge a subventral ridge runs towards the middle of the anterior end. This ridge 15 paralleled by a lower and an upper one, the latter starting at the subcentral tubercle. From the sub- central area a ridge runs obliquely backward and up- ward and joins the dorsal ridge almost at the point where the posterior ridge joins it, thus closing in a triangle. However, the last-mentioned ridge spoils the triangular effect by making a sharp zig-zag just about its mid-length. From the subcentral tubercle a short ridge connects with a prominent eye node, just behind the anterior cardinal angle. From the posterior cardinal angle (dorsal ridge), a smaller ridge runs vertically down and separates the very strongly-compressed posterior end from the rest of the carapace. Between these ridges the surface is covered with a fine network. Dimensions. —HVH No. 10631 (right valve, holo- type), L: 0.29; H: 0.16; HVH No. 10632 (right valve), L: 0.31; H: 0.17 (loc. NMB 17183). Material. — Eight specimens. Remarks. —' This species bears a very strong resem- blance to Eucytherura? sp. of Bonaduce et al., 1980 (p. 164, pl. 6, fig. 12) from the Gulf of Aqaba; however, on close inspection there are a number of small dif- ferences, especially the non-spinose anterior margin of the Caribbean species. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. — Recent: Paria-Orinoco shelf at 73 and 77 m depth (rare). Eucytherura species A Plate 9, figures 6, 7 Diagnosis. — A species of Eucytherura, resembling E. complexa (Brady, 1867), but with irregular posterior ridge, more strongly-projecting ventral ridge and less projecting subcentral tubercle. Dimensions. —HVH No. 10633 (left valve), L: 0.27; H: 0.16; HVH No. 10634 (right valve), L: 0.26; H: 0.16 (loc. NMB 17008). Material. — Six specimens. Occurrence. —Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Eucytherura species B Plate 9, figure 8 Diagnosis. — А short, rectangular, alate species of Eucytherura. Dimensions. —HVH No. 10635 (left valve), L: 0.23; H: 0.14; W: 0.14 (loc. NMB 15983). Material. — Two specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Eucytherura species C Plate 9, figures 9, 10 Diagnosis. — A species of Eucytherura, with promi- nent dorsal and ventral ridges and a coarsely dentate anterior end (four large spines). Dimensions. — НУН No. 10637 (left valve), L: 0.25; H: 0.16; HVH 10636 (right valve), L: 0.26; H: 0.15 (loc. NMB 16148). Material. — Six specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Rio Mao: (Table 3). Distribution. — The same species has been found in the Gulf of Mexico (Rothwell, 1949, HVH No. 6354) at varying water depths (80-300 m). Eucytherura species D Plate 9, figure 11 Diagnosis. — An elongate, alate species of Eucyther- ura with spinose dorsal ridge and very coarsely dentate anterior end (four to five spines). Dimensions. —HVH No. 10638 (left valve), L: 0.34; H: 0.13 (loc. NMB 16125). Remarks.—In general shape, Eucytherura gibbera Müller, 1894 (p. 307, pl. 20, figs. 14, 19, see also Bo- naduce and Pugliese, 1977, pl. 4, fig. 2, and Colalongo and Pasini, 1980, p. 48, pl. 21, fig. 6) is similar, but differs in the degree of anterior dentition and details of the ornamentation. Typhloeucytherura sp. of Cro- nin, 1983 (pl. 6, fig. D) is also quite similar but shorter. Material. — Two specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Eucytherura species E Plate 9, figures 12, 13 Diagnosis. — An elongate, alate species of Eucyther- ura with coarse anterior dentition; anterior end very blunt, large eye node. Dimensions. — HVH No. 10639 (left valve), L: 0.27; H: 0.13 (loc. NMB 16978). Material. — Thirteen specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Mao Formation (Table 2). Eucytherura species G Plate 9, figure 14 Diagnosis. — А broadly alate species of E ucytherura with irregularly angular, fairly coarse reticulation, which trends into the posterior side of the ala. Dimensions. —HVH No. 10640 (left valve), L: 0.31; H: 0.18 (loc. NMB 16108). Material. — Two specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Río Mao: (Table 3). BULLETIN 329 Eucytherura species Dimensions. —Right valve, L: 0.32; H: 0.20 (La- guana amber site, No. 27). Material. — One specimen. Occurrence. — Laguana amber site: (Table 5). Genus KANGARINA Coryell and Fields, 1937 Kangarina depressa Bold Plate 9, figure 15 Kangarina depressa Bold, 1968, p. 74, pl. 7, figs. 5a, b, pl. 8, fig. 7; Bold, 1971b, tables 4, 5; Bold, 1975a, table 15; Bold, 1978b, table 9. Diagnosis. — A slightly alate species of Kangarina of elongate shape and with a hook-shaped posteroventral spine. Conspicuous ridges connect the subcentral area with the anterior cardinal angle and the lower half of the anterior margin. Holotype. —HVH No. 8335. Type locality. — Loc. H 15212, Río Mao at Paso Ba- Jito (= Maury's loc. 1, loc. USGS 8527), Dominican Republic (Bold, 1968, text-fig. 4). Stratigraphic horizon. — Gurabo Formation. Dimensions. — НУН No. 10642 (right valve), L: 0.36; H: 0.18 (loc. NMB 16132). Material. — More than 80 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Middle Miocene to Recent: Domin- ican Republic, Jamaica, Costa Rica, Mexico. Kangarina quellita Coryell and Fields Plate 9, figure 16 Kangarina quellita Coryell and Fields, 1937, p. 13, pl. 2, figs. 15а- c; Puri, 1954, p. 248, pl. 4, fig. 9; Bold, 1958, p. 416, pl. 4, fig. 8; Bold, 1963b, p. 396, pl. 10, fig. 2; Bold, 1966b, p. 7; Bold, 1966e, table 1; Bold, 1967b, p. 312, pl. 1, fig. 14; Bold, 1968, table 9; Bold, 1970b, p. 40; Bold, 1971b, table 5; Bold, 1972a, table 2; Bold, 1975a, table 15; Bold, 1978b, tables 8, 9. Diagnosis. — А short, subquadrate species of Kan- garina with wide posterior loop in the ridge pattern. Holotype. — AMNH 24899. Type locality. — Cativa, Panama. Stratigraphic horizon.—Gatun Formation (upper Мпосепе). Dimensions. —HVH No. 10641 (right valve), L: 0.42; H: 0.18 (loc. NMB 16132). Material. — Twenty-six specimens. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Río Mao: (Table 3). Distribution. — Middle Miocene to Pliocene: Greater Antilles, Central America, Colombia, Venezuela. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 59 Kangarina species Remarks. — Unidentifiable molts, probably mostly K. depressa Bold, 1968. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). “Kangarina” species aff. “K”. abyssicola (Müller) Plate 9, figure 17 Kangarina abyssicola (Müller). Bold, 1963b, p. 397, pl. 10, fig. 1; Bold, 1966a, p. 14, table 2; Bold, 1971b, table 5. Kangarina? abyssicola (Müller). Bold, 1972a, table 2. Kangarina sp. aff. K. abyssicola (Müller). Bold, 1975a, tables 2, 5. ?Kangarina sp. Maddocks, 1974, p. 210, pl. 4, figs. 3, 7, 8, 10, 11. Diagnosis. — А species related to Cytheropteron abyssicolum Müller, 1894 (p. 302, pl. 20, figs. 5, 11) with punctate surface and a long ridge on the dorsal margin of the left valve. Dimensions. — НУН No. 10643 (left valve), L: 0.32; H: 0.18; HVH 10643 (right valve), L: 0.29; H: 0.17 (loc. NMB 17183). Material. —' Three specimens. Remarks. — This species differs from Cytheropteron abyssicolum (Müller) by the discontinuity of the oblique median ridge in the center of the valves. This group of species to which also belongs Hemicytherura radiata Hornibrook, 1952 (p. 61, pl. 14, figs. 217, 218, 227, 228) differs from typical Kangarina in shape (curved dorsal margin) and ridge pattern, and should probably be assigned to a new genus. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. — Pliocene: Dominican Republic, Ja- maica, Cuba, Trinidad. A Recent representative of this group on the shelf North of Trinidad may be identical to Müller's species. Genus SAIDA Hornibrook, 1952 Saida? kingmai (Bold) Plate 9, figure 18 Cytherura kingmai Bold, 1946, p. 117, pl. 14, fig. 14. Holotype. — GIRU S 13066. Type locality. — Loc. T 1439, 2 km southwest of Banes on road to Santa Isabel de Nipe, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (= Jücaro Formation of Kozary, 1957, Jakus, 1983, p. 62). Description. — Carapace subrectangular; dorsal and ventral margin slightly concave and parallel; anterior end almost evenly rounded, rimmed and bearing six fairly large, blunt spines; posterior end is a very short, subdorsal, caudal process, very strongly laterally com- pressed behind a vertical posterior ridge that extends ventrally as a backwardly-pointing spine. From the dorsal end ofthis ridge another prominent ridge curves downward, reaching its lowest point about midway between the center of the carapace and the ventral margin. The carapace is laterally compressed below this ridge. All ridges are wide and smooth and the surface between them is finely punctate. Hinge in the right valve has a long, rather wide, crenulate groove slightly broader just in front of the small terminal teeth, the posterior one of which has three crenulations. The marginal area is broad ante- riorly, line of concrescence and inner margin seem to coincide; marginal pore canals rather widely spaced, partly standing 1n groups. Muscle scar not observed. Dimensions. —HVH No. 10644 (right valve), L: 0.28; H: 0.16 (loc. NMB 17183). Material. — One specimen. Remarks. —Originally assigned to Cytherura, this species shows a surface ornamentation that is remi- niscent of Saida. However the latter genus does not possess a caudal process, so that the generic assignment remains questionable. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. — Upper Miocene: Cuba, Dominican Republic. Subfamily CYTHEROPTERINAE Hanai, 1957 Genus CYTHEROPTERON Sars, 1866 Subgenus CYTHEROPTERON Sars, 1866 Cytheropteron (Cytheropteron) dominicanum, new species Plate 10, figures 4-10 Cytheropteron sp. aff. C. leonensis Puri. Bold, 1966c, p. 34, pl. 3, figs. 1а-с, table 1; Bold, 19675, table 1; Bold, 1968, table 5; Bold, 1970b, table 1; Bold, 1972a, table 2; Bold, 1978b, tables 2, 8, 9. Cytheropteron sp. Bold, 1975c, table 4. Etymology of name. — After its occurrence in the Do- minican Republic. Diagnosis. — A small species of Cytheropteron with broad, convex ventral ridge. Holotype. —HVH No. 10649 (left valve, female). Paratypes. —HVH No. 10650 (left valve, female), HVH No. 10651 (left valve, right valve, female), HVH No. 10652 (left valve, female), HVH No. 10653 (left valve, right valve, female), HVH No. 10654 (four right valves, female, four left valves, female, one right valve, male, one left valve, male). Type locality. — Loc. ММВ 16964 (Rio Cana). Stratigraphic horizon. — Gurabo Formation. Description. — Female: Carapace small, in side view subtriangular, highest in the middle. Anterior margin obliquely rounded, dorsal margin arched with in the right valve a small concavity at the junction with the anterior margin; ventral margin gently convex; pos- terior end rounded subventrally, concave above. Dor- sal view broadly spindle-shaped, widest just behind the middle; posterior end more strongly laterally-com- pressed than anterior end; posterolateral sides slightly concave. A broad ala overhangs the middle two-thirds of the ventral margin, and possesses a wide rim with a depressed area just above it and parallel to it. Surface weakly reticulate with shallow fossae and broad, low ridges, the pattern of which is vertical in the dorsal portion, parallel to the ventral outline in the ventral part; the fossae diminish in size towards the ends. Marginal area broad in anterior end with shallow but wide vestibule; a small number of radial and false radial pore canals. Hinge consists in the left valve of a convex, crenulate ridge with short, terminal, crenu- late sockets. In the right valve short terminal, crenulate teeth and a curved median groove. Muscle scars form a vertical row of four with a single V-shaped scar in front. Male?: Carapace in side view subovate in the right valve, to subtriangular in the left; greatest height in front of the middle. Anterior end obliquely rounded; dorsal margin arched in left valve, convex in right; ventral margin convex in left valve, straight in right with slight anterior concavity. In the left valve the ala is similar to that of the female, in the right valve, however, the rim of the ala is almost straight and ob- scures the ventral margin only behind the middle. Re- ticulations similar to female, in dorsal view widest behind the middle. The males? are much lower than the females and would not have been considered to belong to the same species except for the fact that they are nearly always found together, with the females much more numerous than the males(?). Dimensions. —HVH No. 10651 (right valve, fe- male), L: 0.27; H: 0.20; W: 0.08 (loc. NMB 16964); HVH No. 10649 (left valve, female, holotype), L: 0.26; H: 0.18; W: 0.06; HVH No. 10654 (right valve, ?male), L: 0.25; H: 0.16; HVH No. 10654 (left valve, ?male), L: 0.26; H: 0.17 (loc. NMB 16156). Material. — More than 100 specimens. Remarks. —' The species is related to C. subreticu- latum Bold, 1946 (p. 113, pl. 14, figs. 6a, b) and C. yorktownensis (Malkin, 1953) [= C. leonensis Puri, 1954; see Forester, 1980, p. 9, pl. 2, fig. 7], butis much smaller and has a stronger ventral ridge. C. ventro- kurtosa Swain, 1967 (p. 65, pl. 4, figs. 9a, b, pl. 9, figs. 11a-d, text-fig. 45) is somewhat larger and has three or four ridges more or less parallel to the ventral outline of the ala. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Jamaica, BULLETIN 329 Dominican Republic, Costa Rica. The same species has been found in the Gulf of Mexico (Rothwell, 1949) in material ofthe Atlantis cruise 1947 [HVH No. 6325, “Cytheropteron inflatum"] at 73 m depth. Cytheropteron (Cytheropteron) guraboense, new species Plate 10, figures 1—3 Cytheropteron sp. Bold, 1968, p. 73, pl. 7, figs. 2a-c, pl. 8, fig. 1; Bold, 19715, pl. 3, fig. 10, table 4. Etymology of name. — After its occurrence in the Río Gurabo section. Diagnosis. — А small species of Cytheropteron with a narrow, pointed ala, which has a large spine on its posterior side and a small notch just anterior to the point of the ala. Holotype. —HVH No. 10645 (left valve). Paratypes.—HVH No. 10646 (right valve), НУН No. 10647 (three right valves, one left valve), HVH No. 10648 (right valve). Type locality. — ос. ММВ 15978 (Río Gurabo). Stratigraphic horizon. — Gurabo Formation. Description. — Carapace ovate in side view, pointed behind at median height, greatest width in the middle, strongly alate. Anterior margin obliquely rounded, dorsal margin arched in the left valve, straight in the right; ventral margin convex, slightly sinuate in the middle, curving upward to the posterior end; posterior margin almost straight below, concave above the cau- dal process. Ala narrow, curved backward with a point- ed end in front of which is a small notch indicating the end of a slightly thickened rim, and with a strong, flat spine on the posterior rim. There is a shallow sulcus in the frontal part of the ala, not quite reaching median height. Dorsal view arrow-shaped, sides of the alae convex, greatest width at about one-third of the length from the posterior extremity. Marginal area rather broad in anterior end, with a shallow vestibule and few (about six) false radial pore canals. Hinge consists in the left valve of a median, curved bar with terminal, small, rounded sockets. Muscle scars form a posterior row of four with a single V-shaped scar in front. Dimensions. —H VH No. 10645 (left valve, holo- type), L: 0.33; H: 0.18; W: 0.20 (loc. NMB 15978); HVH No. 10648 (right valve), L: 0.33; H: 0.16; W: 0.18 (loc. NMB 16973). Material. — More than 50 specimens. Remarks. — Very similar, possibly identical, to spec- imens found in Atlantis cruise 1947 material from the Gulf of Mexico (HVH No. 6335), mostly from shallow water (60-80 m) with some from 120-260 m, and a few from deep water (rare). Material deposited by Rothwell (1949). Occurrence. — Río Cana: Cercado and Gurabo for- DOMINICAN REPUBLIC mations (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Pleistocene: Ja- maica, Dominican Republic, Costa Rica; Recent: Gulf of Mexico(?). Subgenus AVERSOVALVA Hornibrook, 1952 Cytheropteron (Aversovalva) bijuduvali, new species Plate 10, figures 15-18 Cytheropteron sp. aff. C. hamatum Sars. Bold, 19715, p. 338, pl. 12, figs. 11a, b (not Bold, 1966c, p. 33, pl. 3, figs. 2a, b). Cytheropteron sp. Bold, 1981, p. 85, pl. 3, fig. 12, table 14. Etymology of name. —In honor of Bernard Biju-Du- val, Institut francais du Pétrole, sedimentologist of the Dominican Republic project. Diagnosis. — A species of Cytheropteron with the right valve overlapping the left along the dorsal margin and the left overlapping the right ventrally; a broad ala with a sharp anterior rim obscures part of the ventral mar- gin. Holotype. —HVH No. 10659 (right valve). Paratypes. — НУН No. 10660 (right and left valves), HVH No. 10661 (left valve), HVH No. 10662 (right valve), HVH No. 10663 (carapace). Type locality. — Loc. NMB 15982 (Rio Gurabo). Stratigraphic horizon. — Upper Gurabo Formation (Pliocene). Description. — Carapace ovate in side view, highest at five-ninths of the length from the anterior extremity in the right valve. Anterior margin almost regularly rounded, continuing into the dorsal margin of the left valve without interruption; in the right valve the dorsal outline is formed by a high, arched ridge with a small concavity at its junction with the anterior margin and continuing with a much stronger concavity into the posterior end; ventral margin almost straight in the right valve, convex in the left, bending upward in a wide curve towards the caudal process, which is located above median height and slightly deflected upward. A broad wing obscures the middle part of the ventral margin; its anterior side is flattened and sharp, the posterior side exhibits one or more flat spinal exten- sions. Surface in most specimens smooth. In some a regularly-distributed punctation occurs. Dorsal view arrow-shaped, width about equal to length; anterior and posterior ends compressed with concave sides. Greatest width at the tip of the ala, at two-thirds of the length from the anterior end. Lateral outline of the alae somewhat sinuous with a terminal small spine and flat posterior carina, generally broken up into one or more flat, bladelike spines. Hinge in the right valve with a deep groove into which fits the crenulate median bar of the left valve; terminal elements very small, short and crenulate. NEOGENE. 7: Вогр 61 Marginal area broad in anterior end with a small ves- tibule and few straight, simple, marginal pore canals. Dimensions. — НУН No. 10659 (right valve, holo- type), L: 0.45; H: 0.25; HVH No. 10661 (left valve), L: 0.45; H: 0.23 (loc. NMB 15982). Remarks. —The species appears related to C. hor- acecoryelli Puri of Howe and Bold, 1975 (pl. 3, fig. 1: not Puri, 1960), but possesses a narrower and less curved dorsal margin. Material. — More than 50 specimens. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. —Pliocene: Hispaniola, Jamaica. Re- cent: Gulf of Mexico (Rothwell, 1949, Atlantis cruise 1947, type no. 30, HVH No. 6348 under the name of “Cytheropteron alatum Sars"). Rothwell included un- der this name also Cytheropteron (Lobosocytheropte- ron) palton Bold, so that the distribution that he gives 1s somewhat suspect. The main distribution in the Gulf of Mexico appears to be between depths of 100 and 325 m. Subgenus LOBOSOCYTHEROPTERON Ishizaki and Gunther, 1974 Cytheropteron (Lobosocytheropteron) palton Bold Plate 10, figures 11—14 Cytheropteron n. sp. A. Bold, 1964, p. 8, table 2. Cytheropteron palton Bold, 1966c, p. 33, pl. 1, figs. 7a, b, table 2; Bold, 19715, table 3; Bold, 1972a, table 2; Breman, 1982, pl. 3, fig. F. Cytheropteron nipeensis Bold. Bold, 1967b, p. 312, pl. 1, fig. 11 [not C. nipeensis Bold, 1946, p. 113, pl. 16, figs. la, b]. Diagnosis. — A species of Lobosocytheropteron with irregularly-convex dorsal margin and sharply pointed alae. Holotype. — USNM 649188. Type locality. — Loc. Bermüdez 8, Margarita, Ven- ezuela. Stratigraphic horizon. — Cubagua Formation (Plio- cene). Dimensions. —HVH No. 10656 (left valve), L: 0.50; H: 0.25; HVH No. 10657 (left valve, large specimen), L: 0.55; H: 0.29 (loc. NMB 15982). Remarks. — Lobosocytheropteron perlaensis Ishizaki and Gunther, 1974 (p. 40, pl. 7, fig. 6) has the same shape, but slightly smaller dimensions and differs in small details. It might, however prove to be identical. That species was found at depth of less than 50 m in the Gulf of Panama. Material. — More than 70 specimens. Occurrence.—Rio Gurabo: Gurabo and Мао for- mations (Table 2). Distribution. — Upper Miocene to Recent: Domini- can Republic, Trinidad, Venezuela, Colombia, Pana- ma, Costa Rica, Jamaica; Recent: Gulf of Mexico. Subfamily PARACYTHERIDEINAE Puri, 1957 Genus PARACYTHERIDEA Miüller, 1894 Paracytheridea altila Edwards Plate 11, figure 1 Paracytheridea altila Edwards, 1944, p. 512, pl. 85, figs. 20-21; Bold, 1968, p. 76 (with synonymy), pl. 7, figs. la-d. Valentine, 1971, pl. 3, figs. 31-34; Bold, 19722, table 2; Bold, 1973b, table 1; Bold, 1975c, table 2; Swain, 1974, p. 20, pl. 1, fig. 17; Cronin, 1979, p. 146, pl. 4, figs. 1—4; Forester, 1980, p. 20, pl. 7, fig. 7; Hazel, 1983, pl. 28, fig. 4. Diagnosis. — A species of Paracytheridea with a large, rounded, posterodorsal boss. Holotype. — USNM 559415. Type locality. — Natural Well, Magnolia, North Car- olina. Stratigraphic horizon. — Upper Duplin marl (Plio- cene). Dimensions. — HVH No. 10665 (right valve), L: 0.63; H: 0.27 (loc. NMB 16103). Material. — Five specimens. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Distribution. — Lower Miocene to Pliocene: Carib- bean, Gulf Coast, Atlantic coast U. S.; Recent: U. S. Atlantic coast. Paracytheridea calcitrapa, new species Plate 11, figures 4-11 Paracytheridea sp. aff. P. hispida Bold. Bold, 1968, p. 76, pl. 4, figs. ба, b; Bold, 19715, table 4; Bold, 1975c, table 2. Not Paracytheridea aff. hispida Bold. Lubimova and Sánchez- Arango, 1974, pl. 19, figs. 6, 6a; Bold, 1973b, table 1; Neufville, 1979, p. 157, pl. 7, figs. 7a, b. Etymology of name. — (Neolatin) calcitrapa — a four- pointed weapon. Diagnosis. — A small species of Paracytheridea with high, pointed, anterior cardinal angle, high postero- dorsal projection, long caudal process and long, point- ed alae. Holotype. —HVH No. 10668 (left valve). Paratypes. — HVH No. 10669 (left valve), HVH No. 10670 (right valve, HVH No. 10671 (right valve), HVH No. 10672 (left valve), HVH No. 10673 (right valve), HVH No. 10674 (left valve), HVH No. 10675 (right valve). Type locality. — Loc. NMB 16185 (Rio Gurabo). Stratigraphic horizon. — Cercado Formation. Description. — Carapace small, elongate, cuneiform in side view with four strong, pointed projections, high- est at the strongly-elevated anterior cardinal angle in the left valve. Anterior margin very obliquely rounded in the left valve, almost evenly rounded in the right; dorsal margin straight, ventral margin slightly sinuous, converging posteriorly towards the dorsal margin; pos- terior end an upwardly deflected, subdorsal caudal pro- BULLETIN 329 cess. Ala long, thin, backwardly curved with a strong anterior rim. Subcentral node placed rather far for- ward, consisting of a high ridge that extends forward toward the anterior mid-margin and curves posteriorly sharply down to join the anterior ridge of the ala mid- ventrally. At the center this ridge is elevated laterally and deflected backward in very well-preserved speci- mens. Posterodorsally there is a high, bifid spinelike node, which projects over the dorsal margin. The pos- teroventral margin bears a strong, backwardly-point- ing spine. Interior typical for the genus. Dimensions. —HVH No. 10668 (left valve, holo- type), L: 0.45; H: 0.25; HVH No. 10670 (right valve), L: 0.45; H: 0.20; HVH No. 10670 (left valve, very large specimen), L: 0.55; H: 0.29; W: 0.25 (allloc. NMB 16185). Material. — Ten specimens. Remarks. — Paracytheridea hispida Bold, 1946 (p. 87, pl. 9, fig. 10) from the Eocene of Bonaire is very similar in size and shape, but differs in having a lower pro- jection of the anterior cardinal angle in the left valve, and a more bladelike extension of the subcentral tu- bercle. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Cercado and Gurabo formations (Ta- ble 2). Río Mao: (Table 3). Río Yaque del Norte (San- tiago): (Table 4). Distribution. — Upper Miocene to Pliocene: Cuba, Dominican Republic. Paracytheridea tschoppi Bold Plate 11, figure 2 Paracytheridea tschoppi Bold, 1946, p. 85, pl. 16, figs. 6, 7; Bold, 1968, p. 76 (with synonymy), pl. 4, figs. 8a-d; Bold, 1975a, p. 150, pl. 16, figs. 3, 4; Teeter, 1975, p. 471, figs. 17c, 18a; Bold, 1978b, table 9; Bold, 1981, p. 22, table 15. Diagnosis. — A species of Paracytheridea with high, four-pointed posterodorsal boss, and rounded, pro- jecting anterior cardinal angle in the left valve. Holotype. — GIRU D 13004. Type locality. — Loc. T 1451, shore of Bahia de Nipe, west of Antilles, Oriente Province, Cuba. Stratigraphic horizon. — Upper Nipe Formation, up- per Miocene (= Jücaro Formation of Kozary, 1957, Jakus, 1983). Dimensions. — НУН No.:10666 (right valve), L: 0.57; H: 0.25 (loc. NMB 16964). Material. — More than 50 specimens. Remarks. — P. tschoppi Bold of Benson and Coleman (1963) and Maddocks (1974) does not have the pro- jecting anterior cardinal angle. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). DOMINICAN REPUBLIC NEOGENE. 7: BOLD 63 Distribution. — Lower Miocene to Recent: Caribbe- an, Gulf Coast. Paracytheridea species A Plate 11, figure 3 Paracytheridea sp. Bold, 1968, p. 76, pl. 4, figs. 7a, b. Diagnosis. — А species of Paracytheridea with flat posterodorsal boss. Reference material. — НУН No. 8351. Reference locality. — Loc. Н 15369, Río Guayabın, 6.5 km downstream from the Arroyo Yaguajai, Do- minican Republic. Stratigraphic horizon. — Cercado Formation (upper Miocene). Dimensions. —HVH No. 10667 (right valve), L: 0.54; H: 0.25 (loc. NMB 16148). Material. — Seven specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Paracytheridea species aff. P. hispida Bold Paracytheridea sp. aff. P. hispida Bold. Bold, 1973a, table 1. Paracytheridea sp. cf. P. hispida Bold. Bold, 1981, p. 84, pl. 3, fig. 14, table 11. Reference material. —HVH No. 10066. Reference locality. — Loc. K 921, Las Cahobas River, Haiti (Bold, 1981, text-fig. 9). Stratigraphic horizon. —Madame Joie Formation (lower Miocene). Material. — One broken left valve. Occurrence. — Laguana amber site: (Table 5). Distribution. — Lower to middle Miocene: Cuba, Hispaniola. Paracytheridea species Molts of a species of Paracytheridea that cannot be identified with certainty, occur in the Gurabo For- mation of the Río Cana section (Table 1), and the Arroyo López part of the Río Yaque del Norte section (Table 4). Subfamily PEDICYTHERINAE Sissingh, 1975 Genus PEDICYTHERE Eager, 1965 Pedicythere variabilis, new species Plate 11, figures 12-17 Etymology of name.—(L.) variabilis — changeable [because of the variety of appearance, due in part to differences in preservation]. Diagnosis. — A species of Pedicythere with three to four flat, carinate or fringed, backward-curving spines. Holotype. — НУН No. 10695 (right valve). Paratypes. – HVH No. 10696 (left valve), НУН No. 10697 (right valve), НУН No. 10698 (right valve), HVH No. 10699 (left valve). Type locality. —Loc. NMB 16039 (Río Gurabo). Stratigraphic horizon. — Mao Formation. Description. — Carapace small, elongate-triangular, highest at the anterior cardinal angle, close to the an- terior extremity; caudal process deflected upward. An- terior margin regularly convex, bearing either a thin carina or up to six large, flattened spines; dorsal margin straight, forming a slight ridge, curving upward into the caudal process; ventral margin sinuous, almost par- allel to the dorsal in the anterior half, swinging upward in a broad curve in the posterior end, becoming con- cave near the caudal process and bearing a strong, flat, curved spine. In the middle of the carapace and at about one-third of the height 1s a long, backward- curved, spinelike ala, the anterior edge of which is flattened to a thin carina, which may, however, be replaced by one large and several small, feathered spines; its posterior edge is also flattened to a carina, sometimes replaced by a parallel, flattened spine lo- cated between the ala and the posteroventral spine. In one specimen there is still another spine between this one and the ala. Surface smooth. At the anterior car- dinal angle is a small, but well elevated eye tubercle. In one specimen the dorsal ridge exhibits several long, flat spines. Marginal area broad in the anterior end, with long, sinuous pore canals. Hinge very weak, amphidont, with terminal, small teeth in the right valve and a very small anterior tooth in the left. Muscle scars form a some- what oblique posterior row of four with a round frontal Scar. Dimensions. —HVH No. 10696 (left valve), L: 0.33; H: 0.17 (loc. NMB 15982); HVH No. 10699 (left valve), L: 0.31; H: 0.15 (loc. NMB 16030); HVH No. 10697 (right valve), L: 0.37; H: 0.19 (loc. NMB 15982); HVH No. 10698 (right valve), L: 0.40 (very long caudal pro- cess), H: 0.16 (loc. NMB 16097). Material. — Seventeen specimens. Remarks. — There is an enormous variation in the presence of spines, depending chiefly on the state of abrasion and preservation. As mentioned in the de- scription, one specimen exhibits the feathered spines on the posterior edge of the ala as figured in Pedicythere mirabilis Sissingh, 1975 (p. 68, pl. 1, figs. 1, 2, pl. 2, figs. 1—3, pl. 3, figs. 1, 2, text-fig. 2). Another specimen has an extra spine behind the tip of the ala as in Реа- icythere phryne Bonaduce, Ciampo, and Masoli, 1975 (p. 86, pl. 58, figs. 1—9, text-figs. 33, 34) [= Pedicythere sp. 1 of Sissingh, 1975 (pl. 3, fig. 3)] from the Adriatic Sea, or P. neofluitans Joy and Clark, 1977 (p. 138, pl. l, figs. 18-20) from the Arctic. All these forms (in contrast to the present one) have the dorsal ridge pro- 64 BULLETIN 329 jecting over the anterior end, forming an anterodorsal concavity, and lack eye tubercles. In this respect the present species is similar to P. tessae Eager, 1965 (p. 22, pl. 2, figs. 6-8), especially the less spinose speci- mens in the Dominican material, but differs by the lack of a continuation of the dorsal ridge parallel to the anterior margin. Pedicythere sp. 1 of Colalongo and Pasini, 1980 (p. 64, pl. 26, figs. 1, 2) appears to have the same arrangement of spines as the present species, but differs by its bossed dorsal margin. P. polita Co- lalongo and Pasini, 1980 (p. 108, pl. 24, figs. 7-10) is similar in outline and size, but lacks the upward de- flection of the caudal process. Pedicythere sp. B of Cro- nin, 1983 (pl. 4, fig. D, which may be identical to P. polita, has been found in Rothwell’s (1949) collections from the Gulf of Mexico (type 45, HVH No. 6359) at 1400 m depth. Cronin reports it from depths between 372 and 1034 m. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Rio Yaque del Norte (Santiago): (Table 4). Family BYTHOCYTHERIDAE Sars, 1926 Genus BYTHOCERATINA Hornibrook, 1952 Bythoceratina monoceros, new species Plate 11, figure 18 Etymology ој name.—(Gr.) monos = one + (Gr.) ke — horn. Diagnosis. — А species of Bythoceratina, similar in shape to Cretaceous species of “Monoceratina”. Holotype. —HVH No. 10700 (right valve). Paratype. —HVH No. 10701 (right valve). Type locality. — Loc. NMB 15978 (Río Gurabo). Stratigraphic horizon. — Gurabo Formation. Description. — Carapace 1n side view subrectangular, height about half the length; anterior end blunt, pos- terior end a short dorsal caudal process. Anterior mar- gin almost straight in dorsal half, convex in ventral part; dorsal margin almost straight, slightly sinuate near the cardinal angles; ventral margin generally parallel, slightly concave in front of the middle, sweeping up- ward to the posterior end in a broad curve that meets the dorsal margin at about a 70? angle. There is a deep, vertical, median sulcus and just posterior to its lower end (at about one-third of the height) a strong spine projects laterally. The middle portion of the carapace is strongly swollen, greatest width at the position of the spine, at about one-third of the length from the posterior extremity. Midway between the anterior car- dinal angle and the median sulcus is an anterodorsal depression of roughly triangular shape. From the slightly elevated area between the two sulci a posterodorsal ridge defines the dorsal termination of the median sul- cus, whereas a slightly more dorsally-positioned anterodorsal ridge forms the termination of the antero- dorsal sulcus. Anteriorly, ventrally, and posteriorly, the carapace is strongly laterally-compressed, forming a sort of keel, which ends anteriorly against the oblique anteroventral extension of the swollen midportion. Above this extension the anterior margin is once again strongly compressed. The surface is covered with a network of fossae, which themselves are further sub- divided. The largest fossae occur around the lateral spine, below which their longitudinal dividing ridges form short, projecting crests. The reticulation fades towards the compressed margins. Marginal area broad anteriorly and posteroventrally. No pore canals or muscle scars could be seen. The hinge consists in the left valve of a narrow, faintly crenulate bar, which curves over open terminal sock- ets. Dimensions. — НУН No. 10700 (right valve, holo- type), L: 0.53; H: 0.29 (loc. NMB 15978); HVH No. 10701 (right valve), L: 0.48; H: 0.25 (loc. NMB 16030). Material. — Five specimens. Remarks. — Carapaces of this species are extremely fragile and several specimens were broken with re- peated wetting, some more were destroyed in prepa- ration of scanning electron micrographs. As mentioned in the diagnosis, this species is very similar in outline and ornamentation to some of the Cretaceous species of “Monoceratina”, such as the Monoceratina umbo- nata (Williamson) group (e.g., Alexander, 1934, pl. 8, fig. 9) or the Cuneoceratina pedata (Marsson) group. Incidentally, Coryell (1963, p. 1019), indicated that the name of Marsson's species is preoccupied by one of Geinitz (1843) [not seen, for reference see Coryell, 1963, p. 312], but this has been ignored by later work- ers except Benson and Tatro (1964). These groups and also Bythoceratina mestayerae Hornibrook, 1952 (pl. 16, figs. 257-259, 269) all differ by possessing raised anterior ridges instead of the compressed margin of the present species. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Pliocene: Dominican Republic; Re- cent: Gulf of Mexico, between depths of 60 and 1335 m, always rare. HVH No. 6337 (left valve) from Roth- well's (1949) collection of material from Atlantis cruise 1947, comes from 97 m water depth. Two other spec- imens, respectively from station 177 (70 m) and station 24 (60 m), have received HVH Nos. 10740 and 10741. Bythoceratina species Bythoceratina sp. Bold, 1968, table 9; Liebau, 1978, pl. 1, figs. G, H. Diagnosis. — А species of Bythoceratina character- ized by a strongly swollen ala, obscuring the postero- ventral margin, a broad swelling anterior to the area DOMINICAN REPUBLIC NEOGENE. 7: BOLD 65 of adductor muscle attachment and a lesser one in the posterodorsal portion. Both ends laterally compressed. Dimensions. —HVH No. 10799 (left valve), L: 0.57; H: 0.25 (loc. H 15212). Material. — One specimen. Remarks. — The specimen from loc. H 15212 (Bold, 1968, text-fig. 4) 15 identical to those figured by Liebau (1978) [lengths given as 0.53 mm and 0.49 mm], but slightly larger. Occurrence. — Río Mao: (Table 3). Distribution. —Upper Miocene: Dominican Repub- lic; Recent: Jamaica (Runaway Bay). Genus PSEUDOCERATINA Bold, 1965a Pseudoceratina droogeri Bold “Monoceratina” sp. Drooger and Kaasschieter, 1958, p. 91, pl. 4, figs. 12-14. Pseudoceratina droogeri Bold, 1965a, p. 161, pl. 1, figs. 1-4, text- figs. 1, 2; Bold, 1966d, table 1; Bold, 1967b, p. 323; Bold, 1968, p. 78, pl. 6, fig. 2; Sissingh, 1975, pl. 2, fig. 4; Bold, 1978a, tables 1, 2; Bold, 1978b, table 9. Holotype. — GIRU S 6349. Type locality. —Station 1006 of Drooger and Kaas- schieter, 100 km due east of the southeast tip of Trin- idad, Orinoco shelf. Stratigraphic horizon. — Recent. Material. — Fifteen specimens. Dimensions. – НУН No. 10702 (left valve), L: 0.52; H: 0.24 (loc. NMB 16964); HVH No. 10703 (right valve), L: 0.47; H: 0.22 (loc. NMB 16039). Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Cercado, Gurabo, and Mao forma- tions (Table 2). Río Mao: (Table 3). Distribution. — Upper Miocene to Recent: Domini- can Republic, Costa Rica; Recent: Orinoco shelf, Pan- ama. Genus SCLEROCHILUS Sars, 1866 Sclerochilus species Plate 12, figure 4 Diagnosis. — A strongly-curved species of Sclerochi- lus with arched dorsal and concave ventral margin; posterior end broadly rounded below and laterally swollen. Dimensions. -HVH No. 10681 (left valve), L: 0.46; H: 0.25 (loc. NMB 16978). Material. — Four specimens. Remarks. —' This species is similar in appearance to specimens assigned to Sclerochilus contortus Norman (e.g., by Cronin, 1981, p. 410, pl. 1, figs. 7, 8), but is more strongly bent in front of the middle and less elongate than Norman's species. Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo Formation (Table 2). Family PARADOXOSTOMIDAE Müller, 1894 Genus XIPHICHILUS Brady, 1870b Xiphichilus species Plate 12, figure 7 Diagnosis. — A very elongate species of Xiphichilus. Description. — Carapace in side view very elongate diamond-shaped, highest in the middle; anterior end low, very obliquely rounded with straight dorsal slope; dorsal margin convex, obtusely angled in the middle in the left valve; ventral margin very slightly convex, keeled; posterior end a submedian caudal process. Dor- sal view lanceolate, widest in the middle. Surface smooth. Marginal area broad, line of concrescence and inner margin close together and more or less parallel along the venter, diverging in both ends. Marginal pore ca- nals widely spaced, except for a small cluster at the caudal process. Hinge very weak. Muscle scars a ver- tical row of four small scars, frontal scar not observed. Dimensions. – НУН No. 10680 (left valve), L: 0.41; H: 0.18; W: 0.16; HVH No. 10679 (right valve), L: 0.43; H: 0.16 (loc. NMB 16145). Material. — Thirteen specimens, valves very fragile, several broken in preparation for photography. Remarks. — Xiphichilus tenuissimoides Swain, 1967 (p. 98, pl. 2, fig. 11, pl. 9, figs. 14a—e) is similar in general shape, but lacks the angulation at the greatest height in the left valve, and is larger. Specimens prac- tically identical to Swain's species have been found on the Paria-Trinidad-Orinoco shelf. The Dominican species may be a direct ancestor. Occurrence. —Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Genus PARADOXOSTOMA Sars, 1866 Paradoxostoma species 1 Plate 12, figure 8 Diagnosis. — An elongate, lozenge-shaped, very fra- gile species of Paradoxostoma. Dimensions. —HVH No. 10685 (right valve), L: 0.40; H: 0.16 (loc. NMB 16145). Material.—Five specimens, very fragile, several specimens were lost during photography. Remarks. — This species is considerably smaller than P. artum Bold, 1966c (p. 37, pl. 3, figs. 4a, b) and possesses a more drawn-out posterior end, but is oth- erwise quite similar. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Paradoxostoma species 2 Plate 12, figure 6 Diagnosis. — An elongate-ovate species of Paradox- ostoma, highest behind the middle, almost straight ventral margin and a posterior end that is very nar- rowly rounded just above the middle, broadly convex below and concave above. Dorsal view lanceolate, wid- est in the middle. Marginal area wide in anterior end; line of concres- cence and inner margin close together and parallel to the venter, diverging in posterior and widely separated in anterior end. Marginal pore canals widely spaced in venter, somewhat more closely spaced in the anterior. Muscle scars: a row of four scars, no frontal scar ob- served. Dimensions. —HVH No. 10689 (right valve), L: 0.52; H: 0.21 (loc. NMB 15990). Material. —Nine specimens, several lost in prepa- ration for photography. Occurrence. —Rio Gurabo: Gurabo and Mao for- mations (Table 2). Paradoxostoma species Occurrence. —Single specimens of possibly more than one species occur in the Río Yaque del Norte section (López, Arroyo López): (Table 4). Genus PELLUCISTOMA Coryell and Fields, 1937 Pellucistoma species aff. P. magniventra Edwards Plate 12, figure 3 aff. Pellucistoma magniventra Edwards, 1944, p. 518, pl. 82, figs. 33-35. Holotype. — USNM 559440. Type locality. — Near Lumberton, North Carolina. Stratigraphic horizon. — Duplin marl (Pliocene). Remarks. — A few specimens have been found which are similar in outline to P. magniventra, except that they have an exaggerated bulge of the ventral margin, and are smaller. Dimensions. —HVH No. 10676 (left valve), L: 0.39; H: 0.23 (loc. NMB 17011). Material. —' Three specimens. Occurrence. — Río Cana: Gurabo Formation (Table 1). Pellucistoma? spurium Bold? Plate 12, figures 9-12 ?Pellucistoma spurium Bold, 1963c, p. 406, pl. 10, figs. 5a, b, pl. 12, fig. 5. Pellucistoma sp. Bold, 19672, table 1. Diagnosis. — А species of Pellucistoma?, elongate- ovate in shape with nearly parallel dorsal and ventral margins and a caudal process at median height. Holotype. — USNM 684088. Paratypes. -HVH No. 6887. Type locality. — Loc. Е. 11862, Melajo River, Trin- idad. BULLETIN 329 Stratigraphic horizon. — Melajo clay member of the Springvale Formation (Pliocene). Dimensions. — HVH No. 10691 (left valve), L: 0.46; H: 0.21 (loc. NMB 17017). Material. — Seventeen specimens. Remarks. — Whereas the specimens in the Trinidad material are smooth to gently punctate, those in the Dominican material vary from slightly to rather heavi- ly punctate, and there are a few carapaces of similar outline that show a reticulate pattern with perforations inside the fossae (Pl. 12, fig. 12). In addition all spec- imens show a well defined eye spot, placed rather far backwards and well below the hinge-line. Although the interior is identical to other species of Pellucistoma, the peculiar ornamentation makes the generic assign- ment uncertain and gives further significance to the name "spurium". Occurrence. — Río Cana: Gurabo Formation (Table 1). Río Gurabo: Gurabo and Mao formations (Table 2). Distribution. — Upper Miocene: Costa Rica; Plio- cene: Trinidad, ?Dominican Republic. Pellucistoma howei Coryell and Fields Pellucistoma howei Coryell and Fields, 1937, p. 17, pl. 2, figs. 18а- c; Bold, 1967b, p. 314, pl. 1, fig. 17, pl. 2, fig. 5; Bold, 1968, table 9. Holotype. — AMNH 24902. Type locality. — Cativa, Panama. Stratigraphic horizon. — Gatun Formation (upper Miocene). Reference material. — НУН No. 8233 (Bold, 1967b, pl. 1, fig. 17). Reference locality. — Loc. P 14, possibly identical to Coryell and Fields’ locality. Dimensions. — НУН No. 10793 (right valve), L: 0.46; H: 0.24 (loc. TU 1447). Material. — One specimen. Occurrence. — Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene: Hispaniola, Pana- ma, Costa Rica. Pellucistoma species Pellucistoma sp. Bold, 1970b, p. 49, pl. 1, figs. 5a, b; Bold, 1972b, p. 436, pl. 1, fig. 12. Pellucistoma sp. A. Bold, 1971a, table 2. Diagnosis. — An elongate species of Pellucistoma with almost parallel dorsal and ventral margins, no con- spicuous bulge of the posteroventer. Reference material. – НҮН No. 8711 (Bold, 1970b, pl. 1, figs. 5a, b). Reference locality. —Loc. AG 7, Crocus Bay, An- guilla. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 67 Stratigraphic horizon. — Anguilla Formation (upper lower to lower middle Miocene). Dimensions. – НУН No. 10794 (right valve), L: 0.52; H: 0.25 (Bayaguana amber site). Material. — Two specimens. Occurrence.—Rio Yaque del Norte (López): (Table 4). Bayaguana amber site: (Table 5). Genus MICROCYTHERE Miüller, 1894 Microcythere howei (Puri) Plate 12, figure 5 Xestoleberis triangularis Puri, 1954, p. 298, pl. 16, figs. 1-4, text- figs. 14h, i [not Xestoleberis triangularis Weber, 1937, p. 40, figs. 5a, b]. ?Microcythere cf. inflexa Müller. Puri, 1960, p. 119, pl. 5, figs. 13, 14; Teeter, 1973, table 1; Teeter, 1975, p. 482, fig. 20a. Xestoleberis howei Puri, 1964, p. 787. Microxestoleberis sp. Bold, 1964, table 2. Microcythere howei (Puri). Bold, 1966c, p. 40, figs. 6a, b; Bold, 1972a, table 2. Microcythere aff. howei (Puri). Bold, 1972a, table 3. ?Microcythere sp. 2. Howe and Bold, 1975, pl. 3, fig. 5. Holotype. – НУН No. 3047. Type locality. — One-fourth mile above Walsingham bridge in Ecofina Creek, Washington Co., Florida. Stratigraphic horizon. — Ecphora facies of the Choc- tawhatchee Stage. Dimensions. —HVH No. 10684 (left valve), L: 0.31; H: 0.15 (loc. NMB 16039). Material. — Four specimens. Occurrence. — Río Cana: Cercado Formation (Table 1). Río Gurabo: Cercado, Gurabo and Mao formations (Table 2). Distribution. — Upper Miocene to Pliocene: Vene- zuela, Colombia, Dominican Republic, Florida; Pleis- tocene: Venezuela; Recent?: Florida, Orinoco shelf (confined to coarse sediment). Genus PARACYTHERE Miüller, 1894 Paracythere species Plate 12, figures 1, 2 Paracythere sp. Bold, 1964, p. 9, table 2; Bold, 1966c, p. 37, pl. 1, figs. 6a, b, pl. 5, fig. 5. Reference material. — НУН Nos. 7927, 10709. Reference locality. —Station 1106 of Drooger and Kaasschieter (1958), Paria shelf. Stratigraphic horizon. — Recent. Diagnosis. — An ovoid-trapezoid species of Para- cythere in which the dorsal margin of the left valve forms a slightly thickened ridge. Description. — Carapace small, ovate-trapezoid in side view, highest in the middle; both ends obliquely round- ed, more narrowly rounded below. Dorsal margin con- vex, slightly thickened to a ridge in the left valve; ven- tral margin almost straight, slightly sinuate. Shell very thin and transparent, surface smooth with distinct, reg- ularly spaced, sieve-type normal pore canals. Marginal area of moderate width with small vesti- bules both anteriorly and posteriorly, and widely spaced false radial pore canals. Hinge in the left valve consists of a crenulate bar with small, terminal, crenulate sock- ets. Selvage strongly incurved ventrally. Dimensions. —HVH No. 10706 (left valve), L: 0.26; H: 0.18 (loc. 1106 of Drooger and Kaasschieter, 1958: Orinoco shelf, east of Trinidad). Material. — One specimen. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. — Pliocene: Venezuela, Dominican Re- public; Recent: Paria shelf (41-187 m). Family XESTOLEBERIDIDAE Sars, 1928 Genus XESTOLEBERIS Sars, 1866 Xestoleberis duo, new species Plate 13, figures 9, 10 Xestoleberis sp. 2. Bold, 1968, p. 78, pl. 6, figs. 8a-d; Bold, 1975a, p. 151, pl. 18, figs. 1-4. Xestoleberis sp. Bold, 1981, table 15. Etymology of name. —(L.) duo — two [because this species has twice received this number in open no- menclature]. Diagnosis. — A species of Xestoleberis of ovate shape, with sexual dimorphism easily visible only in dorsal view; female very broadly rounded behind, male more acuminate. Holotype. —H VH No. 10720 (left valve, male). Paratype.—HVH Мо. 10721 (left valve, female), HVH No. 10722 (carapace, female). Type locality. — Loc. NMB 16145 (Río Gurabo). Stratigraphic horizon. — Gurabo Formation. Description. — Carapace ovate in side view, highest in the middle. Anterior end obliquely rounded, nar- rowly rounded below, anterodorsal slope gently convex up to the greatest height; dorsal margin convex, sloping gently down from the highest point; posterior margin steep, gently convex in dorsal part, broadly rounded ventrally; ventral margin almost straight, very slightly sinuate. Carapaces of both sexes are very similar in side view, but strongly differ in dorsal view: female, broadly pear-shaped, widest at two-thirds of the length from the anterior extremity, anterior end somewhat acuminate, posterior end well-rounded; male, spindle- shaped, widest at three-fifths of the length from the anterior end, both ends about equal, slightly acumi- nate. Surface smooth with well-defined normal pore canals. Interior typical of the genus. Dimensions. —HVH No. 10722 (carapace, female), L: 0.48; H: 0.33; W: 0.35; HVH 10720 (left valve, male), L: 0.50; H: 0.33; W: 0.17 (loc. NMB 16145). Material. — More than 150 specimens. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López, Santiago): (Table 4). Distribution. — Upper Miocene and Pliocene: Cuba, Hispaniola; Recent: Trinidad—Paria shelf (73 m). Xestoleberis antillea, new species Plate 13, figures 1-8 Xestoleberis sp. A. Bold, 1946, p. 120, pl. 16, figs. 17a-d; Bold, 1973b, table 1. Xestoleberis sp. 4. Bold, 1968, p. 79, pl. 1, figs. 6a, b, d (not fig. 6c). Xestoleberis sp. Bold, 1969, pl. 2, fig. 3. Xestoleberis sp. 1. Bold, 1975c, p. 151, pl. 16, figs. 13, 14, pl. 18, fig. 16. Etymology of name.— After its widespread occur- rence in the Greater Antilles. Diagnosis. — An elongate, ovate, very tumid species of Xestoleberis. Holotype. — HVH No. 10711 (left valve, male). Paratypes. – НУН No. 10712 (right valve, male), HVH No. 10713 (right valve, female), HVH No. 10714 (right valve, female), HVH No. 10715 (right valve, female), HVH No. 10716 (left valve, female), HVH No. 10717 (left and right valves, female), HVH No. 10718 (left valve, female), HVH No. 10719 (carapace, male). Type locality. — Loc. NMB 16145 (Río Gurabo). Stratigraphic horizon. — Gurabo Formation. Description. — Female: carapace pyriform in side view, highest just behind the middle. Anterior end obliquely rounded, narrowly rounded ventrally; dorsal margin arched; ventral margin strongly sinuate, con- cave in front of the middle; posterior margin broadly and slightly obliquely rounded, slightly more narrowly rounded subdorsally. Dorsal view elongate pyriform, widest just behind the middle, posterior end more broadly rounded than anterior. Male: very similar to female, but lower; greatest height slightly more towards the posterior; posterior end less obliquely rounded. Dorsal view elongate spin- dle-shaped, widest behind the middle. Interior typical for the genus; vestibule in anterior end; pore canals numerous, short. Row of four rather elongate adductor scars, irregularly-rounded scar in front, close to the vertical row of adductor scars. Dimensions. —HVH Мо. 10713 (right valve, fe- male), L: 0.36; H: 0.23; W: 0.12 (loc. NMB 17010); HVH No. 10717 (right valve, female), L: 0.36; H: 0.24; W: 0.12 (loc. NMB 17010); HVH No. 10712 (right valve, male), L: 0.35; H: 0.21; W: 0.09 (loc. NMB 16145); НУН No. 10711 (left valve, male, holotype), L: 0.35; H: 0.22; W: 0.09 (loc. NMB 16145). Material. — About 150 specimens. BULLETIN 329 Remarks. — Xestoleberis sp. 2 of Bold, 1967a (p. 81, pl. 1, fig. 15 [= X. sp. of Bold, 1967b, p. 316, pl. 1, fig. 15] ofthe Gatun Formation of Costa Rica and Panama is very similar, but has a slightly different rounding of the posterior end. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Yaque del Norte (Ar- royo López): (Table 4). Distribution. — Middle Miocene to Recent: Greater Antilles; Recent: Paria shelf. Xestoleberis punctata Tressler? Plate 13, figures 11-14 Xestoleberis margaritea Brady, 1868, p. 152; Baker and Hulings, 1966, p. 122, pl. 2, fig. 9 [not Cytheridea margaritea Brady, 1866, p. 370, pl. 58, figs. 6a-d]. ?Xestoleberis punctata Tressler, 1949, p. 342, fig. 12; Puri, 1960, p. 122, pl. 5, figs. 9, 10; Teeter, 1975, p. 185, figs. 210, 22e. Xestoleberis margaritea Brady?. Bold, 1963c, p. 402, pl. 10, fig. 13. Xestoleberis sp. aff. X. margaritea Brady. Bold, 1966d, p. 52, pl. 4, HES las pi 3, fio 5 ?Xestoleberis rigbyi Morales, 1966, p. 87, pl. 8, figs. 4a-d; Kontrovitz, LOTS ри 557 рі 5. Пр. 9 Xestoleberis sp. 3. Bold, 1968, p. 79 (part), pl. 1, figs. 7a, с (not fig. 7b); Bold, 1969, p. 123, pl. 2, figs. Ја, b. Diagnosis. — A species of Xestoleberis with high, al- most regularly-rounded posterior end, and low, obliquely-rounded anterior end. Dorsal margin arched to convex, ventral margin sinuate. Holotype. — USNM 88847. Type locality. — Tortugas, Florida. Stratigraphic horizon. — Recent, shallow water. Dimensions. —H VH No. 10724 (carapace, female), L: 0.41; H: 0.29; W: 0.26 (loc. NMB 16039); HVH No. 10725 (left valve, male), L: 0.33; H: 0.22 (loc. NMB 16106). Material. — About 30 specimens. Remarks.—' The species as interpreted here has a somewhat variable height of the anterior end. The fig- ured specimens from the Dominican Republic have a relatively low anterior, whereas Xestoleberis sp. 3 of Bold, 1968 (pl. 1, fig. 7a) shows a slightly higher an- terior. X. rigbyi also has a slightly higher anterior, but not as blunt as the original X. punctata. On the other hand specimens from the Paria shelf are slightly lower anteriorly than most specimens from the Dominican Republic, some of which are identical to any of the above mentioned species. However, the Dominican specimens are slightly smaller than the Recent ones from either the Gulf of Mexico, Belize, or the Paria shelf. The main distribution of all Recent material is between 40 and 100 m. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Distribution. — Upper Miocene and Pliocene: Do- DOMINICAN REPUBLIC NEOGENE. 7: BOLD 69 minican Republic, Trinidad, Venezuela; ?Recent: Gulf of Mexico, Belize, Paria-Orinoco shelf. Xestoleberis species 1 Xestoleberis sp. Bold, 1963b, p. 402, pl. 10, figs. 14a, b. Xestoleberis sp. 1. Bold, 1968, p. 78, pl. 6, figs. 9a-c. Reference material. —H VH No. 8382. Reference locality. —Loc. Н 15372, Río Guayabin, Dominican Republic (Bold, 1968, text-fig. 2). Stratigraphic horizon. — Gurabo Formation. Dimensions. —HVH No. 10797 (left valve, juvenile), L: 0.34; H: 0.20 (loc. NMB 16108). Material. — Four specimens, all juveniles. Occurrence. — Río Gurabo: Mao Formation (Table 2). Río Mao: (Table 3). Xestoleberis species 3 Xestoleberis sp. 3. Bold, 1968, p. 79 (part), pl. 1, fig. 7b (not figs. 7a, с). Reference material. —HVH Мо. 8385. Reference locality. — Loc. H 150093, on old Santia- go-Puerto Plata road (Bold, 1968, text-fig. 6). Stratigraphic horizon. — Mao Formation. Dimensions. —HVH No. 10798 (right valve), L: 0.43; H: 0.26 (loc. NMB 16106). Material. — Nine specimens. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Xestoleberis species B Xestoleberis sp. B. Bold, 1966d, p. 52, pl. 3, fig. 13. Reference material. —H VH No. 8290. Reference locality. — Loc. P 16, Colón Harbor, Pan- ama. Stratigraphic horizon. — Recent. Dimensions. —HVH No. 10796 (left valve), L: 0.38; H: 0.19 (loc. NMB 16147). Material. — One specimen. Occurrence. — Río Gurabo: Gurabo Formation (Ta- ble 2). Distribution. — Recent: Panama. Xestoleberis species E Plate 12, figure 13 Dimensions. —HVH No. 10727 (left valve), L: 0.43; H: 0.18 (loc. NMB 16097). Material. — Two specimens. Occurrence. — Río Gurabo: Mao Formation (Table 2). Xestoleberis species H Plate 12, figure 14 Dimensions. —HVH No. 10728 (carapace), L: 0.48; H: 0.28 (loc. NMB 16180). Material. — Four specimens. Occurrence. —Río Gurabo: Gurabo and Mao for- mations (Table 2). Xestoleberis species Several indeterminable species are lumped together under this heading. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). Río Gurabo: Gurabo and Mao for- mations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Baitoa, López, Arroyo López and Santiago): (Table 4). Genus UROLEBERIS Triebel, 1958 Uroleberis torquata Bold Plate 13, figure 16 Uroleberis torquata Bold, 1968, p. 81, pl. 6, fig. 4, pl. 10, fig. 2; Bold, 1975a, pp. 581, 582, table 4; Bold, 1975c, p. 152, table 4. Diagnosis. — A species of Uroleberis with blunt ven- tral alae, and a sharp posterodorsal angulation. Holotype. —HVH No. 8377. Type locality. — Loc. H 15093, on old road from San- tiago to Puerto Plata (Bold, 1968, text-fig. 6). Stratigraphic horizon. — Mao Formation. Dimensions. — HVH No. 10730 (left valve), L: 0.52; H: 0.29 (loc. NMB 16097). Material. — Two specimens. Occurrence. — Río Gurabo: Mao Formation (Table 2). Distribution. — Pliocene: Cuba, Hispaniola. Uroleberis triangula Bold Plate 13, figures 17-19 Uroleberis triangula Bold, 1968, p. 80, pl. 6, figs. 5a—c, pl. 10, figs. Та, b; Bold, 19715, table 5; Bold, 1975c, p. 152, table 4. Diagnosis. — А smooth, triangular species of Urole- beris. Holotype. —HVH No. 8374. Type locality. —Loc. Н 15212, Rio Mao, Maury's station 1 = USGS loc. 8527 (Bold, 1968, text-fig. 4). Stratigraphic horizon. — Gurabo Formation. Dimensions. — НУН No. 10732 (carapace, female), L: 0.53; H: 0.34; W: 0.39 (loc. NMB 16182). Material. —Ten specimens. Occurrence. — Río Gurabo: Cercado, Gurabo, and Mao formations (Table 2). Río Mao: (Table 3). Río Yaque del Norte (Arroyo López): (Table 4). Distribution. — Upper Miocene and Pliocene: Cuba, Dominican Republic, Jamaica. Uroleberis species 1 Uroleberis sp. Bold, 1970b, p. 50, pl. 2, figs. 16a, b. Reference material. —HVH No. 8725 (Bold, 1970b, pl. 2, figs. 16a, b). Reference locality. —Loc. AG 3, Crocus Bay, An- guilla (Bold, 1970b, p. 36). Stratigraphic horizon. — Anguilla Formation (upper lower to lower middle Miocene). Dimensions. – НУН No. 10795 (carapace), L: 0.58; H: 0.33; W: 0.41 (Laguana amber site). Material. — Fourteen specimens. Occurrence. — Laguana amber site: (Table 5). Distribution. — Upper lower to middle Miocene: His- paniola, Anguilla, St. Martin. Uroleberis species aff. U. sp. 1 Plate 1, figures 19, 20 Dimensions. — HVH No. 10735 (carapace), L: 0.46; H: 0.27; W: 0.28 (loc. NMB 16985). Material. — Three specimens. Remarks. — This species is similar to Uroleberis sp. 1, but less angular in dorsal view. Occurrence. — Río Cana: Cercado and Gurabo for- mations (Table 1). BULLETIN 329 Uroleberis species Scattered specimens of another species of Uroleberis occur in the Gurabo Formation. Most are probably molts and cannot be identified. Occurrence. — Río Gurabo: Gurabo and Mao for- mations (Table 2). Genus MICROXESTOLEBERIS Müller, 1894 Microxestoleberis species Plate 13, figure 15 Diagnosis. — A species of Microxestoleberis with flat- tened venter and slightly produced posterior; dorsal margin convex, anterior end obliquely rounded, pos- terior end more steeply rounded. Dimensions. — HVH No. 10729 (right valve), L: 0.33; H: 0.19 (loc. NMB 16108). Material. — One specimen. Remarks. —Clearly different from Microxestolebe- ris? sp. Bold, 1971b (p. 330, pl. 2, fig. 5, pl. 4, fig. 7) from the Pliocene of Jamaica. Occurrence. — Río Gurabo: Mao Formation (Table 2). Río Mao: (Table 3). REFERENCES CITED Alexander, C. I. 1929. Ostracoda of the Cretaceous of North Texas. Univ. Texas Bull. No. 2907, 114 pp., pls. 1-10, 1 table. 1933. Shell structure ofthe genus Cytheropteron and fossil species from the Cretaceous of Texas. J. Paleontol., vol. 7, No. 2, pp. 181—214, pls. 25-27. 1934. Ostracoda of the genera Monoceratina and Orthonotacy- there from the Cretaceous of Texas. J. 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Su Pontocyprisesseu'drelkantey(Goryellsandt КИЧ) енелер ae 19 Left valve, HVH No. 10482, loc. NMB 17011, 65x. DG АТОТПОЕОТПЕКСЕПИЕПЕТИВРЕсЕРЕ ТЕРЕ E HORA из RR ER X. ADU GM Aiea. Ga ER 20 Carapace viewed from the left, HVH No. 10483 (holotype), loc. NMB 16020, 110x. ds APEUIO CIO SUCCES Ss ПС Еа һа ы RR oes RA o EDO eas Weeks ER Ee buen 20 Carapace viewed from the left, HVH No. 10487, loc. NMB 16020, 85x. 0. AIO CCAS CCI COE Eo СЫНЫ oed. ЛЫС ER ense ERE UY bci IR rar Ер 21 Carapace viewed from the left, HVH No. 10488, loc. NMB 16020, 100x. URANO COS pe CIE sro P E PSPIDSOWESDOCISSRÉGUE 74. 1o 2084. TE. A Da Eit ee НЕ dae 20 Carapace viewed from the left, HVH No. 10489. loc. NMB 16020, 90x. ОШООО ТАНОО SEN TR A f GE EI Re oe КЕК edes coe usi 21 Interior of right valve, НУН No. 10490, loc. Н 15244, 120x. ONU ЛОП ООСО ERE ОИ USE aA. Air aaa d: acte Dou r ris. 19 HVH No. 10491, loc. NMB 16184, 45x. 9. Carapace viewed from the left. 10. Carapace viewed from the left. ДОЛИ OB UDS ао И arcu ur cd m vues. A n RRS сатты а шл.» 21 11. Right valve, HVH Мо. 10493, loc. NMB 16039, 50x. 12. Left valve, HVH No. 10492, loc. NMB 16097, 50x. E A E UA асс. ама Аны аа o MM co Be РЫ МКТ аттты сам POE 20 22 Right valve, HVH No. 10494, loc. NMB 16030, 50x. 14d. MavroGyDEHIHOESpedie S қаса Ra Oed BE near ARA DR, Left valve, HVH No. 10495, loc. NMB 16156, 50x. a ОВО едО) e battu an EAR REN EEE ie RT ee e RE eos 28 Carapace viewed from the right, HVH No. 10496, loc. NMB 16993, 60x. ТОТ Bandoppilatatoblongata: Bold) e$t rv ДЕ us e ana. oM s ыз. see A bue esL 23 16. Right valve, HVH No. 10497, loc. NMB 16970, 45x. 17. Left valve, HVH No. 10497, loc. NMB 16970, 45x. LS КВАР ӨР ШӨ КАПА, JOLMOS TADA. ЖҰЛА nn ИН ДА di ds S. Lem A tasa Simon BA BP D Left valve, HVH No. 10498, loc. NMB 16090, 90x. I9 20k o o spouse ss РАНА ER. Бы A om te nece Its ERE od Mac vede Та тый 70 19. Carapace viewed from the left, HVH No. 10734, loc. NMB 16985, 130x. 20. Carapace, dorsal view, HVH No. 10735, loc. NMB 16985, 120x. PLATE 1 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 2 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 79 EXPLANATION OF PLATE 2 А y PLA EIS pasta rob ue ncs оспе 7... 665 d Re E I er MES LINT 24 1. Left valve, female, HVH No. 10499, loc. NMB 16186, 65x. 2. Right valve, female, HVH No. 10499, loc. NMB 16186, 65x. 3,4. .Parakrtthe:alta пересек о EE UE 2-5 22040 0 26 3. Right valve, НУН No. 10501 (paratype), loc. ММВ 16108, 105 x. 4. Left valve, HVH No. 10500 (holotype), loc. NMB 16108, 105x. 5-7. Pseudopsammocythere ex gr. vicksburgensis (Howe and Law) ........................................................... 27 5. Carapace viewed from the right, HVH No. 10504, loc. NMB 16145, 100x. 6. Right valve, interior view, HVH No. 10505, loc. NMB 16145, 115x. 7. Left valve, interior view, HVH No. 10506, loc. NMB 16145, 115x. без Ойлоо у О Пе ООЛО ЕКОШ o а a PEO icone UE E ODE ы RT 29 8. Left valve, НУН No. 10513, loc. NMB 16125, 115x. 9. Right valve, HVH No. 10513, loc. NMB 16125, 115x. | 10-13: Perissocytheridea:cahobensis Bold? ranana ма та ар балана алы SS E d у or. о нини е ес н 28 | 10. Carapace viewed from the right, female, НУН No. 10511, loc. NMB 16205, 80x. 11. Carapace viewed from the right, male, HVH No. 10509, loc. NMB 16205, 80x. 12. Left valve, interior view, female, HVH No. 10510, loc. NMB 16205, 80x. 13. Right valve, interior view, male, HVH No. 10510, loc. NMB 16205, 65x. 1:4. »»DerissocytherrdeapumilaBolde:...... АКТ КТ mute Ill Ll pn E IM I о 29 Right valve, female, HVH No. 10512, loc. NMB 16205, 110x. LS. 2BumilocptherdeassandberguaBold. Ru uo cuoc UN н CPU n UL M MM LL ete 20 Left valve, HVH No. 10514, loc. NMB 16978, 115x. EA ES RS TEE o ee 227 us teure de e СЫЛ 22222. 24 16. Carapace, viewed from the right, female, HVH No. 10738, loc. H 15093, 70x. 17. Carapace, dorsal view, female, HVH No. 10738, loc. H 15093, 45x. 18. Carapace, viewed from the right, male, HVH No. 10738, loc. H 15093, 65x. 19. Carapace, dorsal view, male, HVH No. 10738, loc. H 15093, 50x. 80 Figure 1, 2. 3-5. BULLETIN 329 EXPLANATION OF PLATE 3 ПУЛИ SPECIES Ш.с РН а е 1. Right valve, HVH No. 10515, loc. NMB 16156, 95x. 2. Left valve, HVH No. 10516, loc. NMB 16176, 85x. DTU CY CEJA New4specteS а а ee RN КОК е» 3. Right valve, female, HVH No. 10517 (holotype), loc. NMB 16148, 115x. 4. Carapace viewed from the right, male, HVH No. 10518, loc. NMB 16145, 110x. 5. Right valve, interior view, female, HVH No. 10519, loc. NMB 16156, 120x. A es Gli a HO EIBBOIOS. bea ERR AE dU ИН Т ӨТ Кр к ENTM ES Left valve, НУН No. 9544, loc. NMB 16106, 215 x. AA TS OR elkandakields:. ыла oD rua RIS TU ағ Carapace viewed from the right, HVH No. 10540, loc. NMB 16964, 80x. OA A ЕТІ с та н ТТ ТТТ eaa s EE RS O aaa CE ors Carapace viewed from the right, HVH No. 10541, loc. NMB 16125, 85x. ОНИ НА И АДИ О Ва ата ЕН v v ТТ о LIIS MEER S T S 9. Carapace viewed from the left, HVH No. 10542, loc. NMB 16973, 85x. 10. Right valve, HVH No. 10543, loc. NMB 16973, 85x. КОИ ШОО ЛОО КО (та) iru A UON S Oe ЕО Уу, e TT CS ane Left valve, HVH No. 10544, loc. NMB 16176, 85x. SOTO Ey Tere pr OA UCA) Иа Right valve, HVH No. 10545, loc. NMB 16097, 85x. Jug ythereis p (ИВА iy) sass. АПАН Т ete EN D И ПН с C esto M cati E Right valve, HVH No. 10546, loc. NMB 16125, 45x. Uh Inu а NE NE ЕР OBSS A EC уу кезт UEM MM тана ТТТ” T ud Carapace viewed from the right, HVH No. 10556, loc. NMB 16097, 110x. SAIN OC) TENE оду БОЈИ И а ЗЫ Тал ee 22“ Carapace viewed from the right, HVH No. 10568, loc. NMB 16039, 100x. LE CODD HERBES (Bold) Беа Ct 226 Ол REUS rrr 2-2... N — viewed from the right, HVH No. 10547, loc. NMB 16097, 90x. . Coq DSIOVINUDO GRE. o... ЛА Coc ids а АТАЛ АДАЛ ui. s ne ee T Left valve id from the left, HVH No. 10548, loc. NMB 16125, 70x. er MORI HOFRIDEGORIS Ш О) Е-е ul ori RON TRE ED EL па Carapace viewed from the right, HVH No. 10549, loc. NMB 17183, 110x. BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 3 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 4 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 81 EXPLANATION OF PLATE 4 Page Radiiella:confragosa ауланат хы л л ми LEE A Ee c 31 Left valve, HVH No. 10534, loc. NMB 17011, 75x. никада те соу rat osi б сала ВОЛИ АНРИ e уык een 0027722 31 Left valve, HVH No. 10535, loc. NMB 16180, 75x. < kadimo l OV AED AIC WESC CL OS шын tad toD аде а un RR НЕН EN SEN ER а 1 32 3. Left valve, НУН No. 9102 (holotype), loc. Rutsch 124, Trinidad, 85x. 4. Left valve, HVH No. 9103, Cubagua £2, core 10, Venezuela, 85x. 5. Right valve, HVH No. 10536, loc. NMB 16156, 75x. Aupo АЛИ А CIC А dU E ш ae 33 Left valve, НУН No. 10558, loc. NMB 17012, 70x. vw Ortonmnavauehani СПО andibBassler). ner К кл estuve ne 33 Carapace viewed from the right, HVH No. 10560, loc. NMB 16964, 75x. о [Manse ella: saundersi MEW о ресе» ooo AS tH ue оу 2222020 Н 30 8. Carapace viewed from the right, female, HVH No. 10522, loc. NMB 16039, 150x. 9. Carapace, dorsal view, female, holotype, HVH No. 10521, loc. NMB 16039, 190x. 10. Left valve, male, HVH No. 10523, loc. NMB 15982, 190x. 11. Right valve, male, HVH No. 10524, loc. NMB 16030, 190x. 12. Left valve, female, HVH No. 10525, loc. NMB 16090, 180x. 13. Left valve, male, HVH No. 10527, St. Marc #1 borehole: 365-390 ft, Haiti, 190x. 14. Left valve, interior view, female, HVH No. 10527, St. Marc #1 borehole: 365—390 ft, Haiti, 190x. « Мипкеусна NEW: реса nenn таман ПТ. Зе RU an 31 Carapace viewed from the right, HVH No. 10736, loc. NMB 17189, 200x. 82 BULLETIN 329 EXPLANATION OF PLATE 5 Figure Page SOT јаја 22... EN Та е... И а 39 1. Right valve, НУН No. 10550, loc. NMB 16039, 60x. 2. Left valve, HVH No. 10551, loc. NMB 16039, 90x. I: CO ФОНЕ Bold. ias T EC unc UE cad. IE REESE 39 Right valve, HVH No. 10552, loc. NMB 15978, 80x. АРОНА А ОКУС OUI IS. ts НКТ B9 Right valve, HVH No. 10553, loc. NMB 17011, 70x. ӘУЕ ИПТАРИРПРИПЕЛИИИПИИПЕТИППАЙВОТЕЙЫ с у e елук л МОЕ cb. sega А ОП IEEE due e ub. 38 5. Right valve, НУН No. 10555, loc. NMB 16103, 60x. 6. Left valve, HVH No. 10554, loc. NMB 16103, 60x. VRE ЧИТА А И (еокуеШанаввлеійв); 2а ИА ee 41 Left valve, НУН No. 10561, loc. NMB 16125, 85x. See ITUNES TIOS E II o is ии ноу о. 42 Left valve, HVH No. 10562, loc. NMB 16964, 115x. DESOLCHITDCPINOHEISKONENSEDEBO НИ E DI ELE RI ыы 22. 40 Carapace viewed from the right, HVH No. 10557, loc. NMB 16039, 100x. EO SPIEEV ROCVINEV CIS pohta Bold o TE LLL AREE OUO NS EE RA. ТОМСК қыла те 40 Left valve, HVH No. 10567, loc. NMB 17011, 60x. ПШ ОУ PIOPSODOPIHEFOISMIDIHOSD МОЗ SPEIER lio. eR акыл TONES 0000022. 40 11. Left valve, HVH No. 10564 (holotype), loc. NMB 15978, 65x. 12. Carapace, dorsal view, HVH No. 10565, loc. NMB 15978, 60x. ISO IHerert AAN A ы nen ја E ЖЫНЫ ЖИ a ВАЊА ce 46 Left valve, HVH No. 10569, loc. NMB 17011, 75x. Id lo Behnoeptherersmadremaestmaesneswsspecies y err erre ert eme mer ERE er ur 42 14. Left valve, HVH No. 10570 (holotype), loc. NMB 15978, 60x. 15. Right valve, HVH No. 10571, loc. NMB 15978, 60x. BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 5 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 6 Figure 1-4. 14, 15. 16-18. 10-13. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 83 EXPLANATION OF PLATE 6 Page PPOISUCORCHO ўа ne WESDCCIES: р И ОТОО а 44 1. Right valve, НУН No. 10578, loc. NMB 16135, 60x. 2. Carapace, dorsal view, HVH No. 10577 (holotype), loc. NMB 16135, 65x. 3. Left valve, interior view, HVH No. 10581, loc. NMB 17011, 65x. 4. Right valve, interior view, HVH No. 10580, loc. NMB 16135, 60x. . Prot ha elongata Bol) Е is а ала ағуы. 45 5. Carapace viewed from the right, HVH No. 10742 (Bold, 1964), loc. W 66, Guatemala, Rio Dulce Formation, 60x. 6. Carapace, dorsal view, HVH No. 10742, loc. W 66, Guatemala, Rio Dulce Formation, 60x. „Campylocyfhere ресів а сыл 2210000 NOUIS М aid d SE. ы 45 Carapace viewed from the right, HVH No. 10582, loc. NMB 16995, 60x. CO PFoteoconcha elongata (Bold)... 989929 Салы ол ол т UR ул. 45 8. Left valve, HVH No. 10743, loc. K 534, Haiti (Bold, 1981, p. 104), 60x. 9. Carapace viewed from the right, HVH No. 10744, loc. M 26, Comendador area, Dominican Republic, 60 x. Cambell perteni пе ресе. ыза ee 45 10. Сагарасе viewed from the right, HVH No. 10528 (holotype), loc. NMB 16964, 140х. 11. Left valve, interior view, female, HVH No. 10529, loc. NMB 16185, 140x. 12. Right valve, interior view, male, HVH No. 10530, loc. NMB 16097, 145x. 13. Right valve, female, HVH No. 10531, loc. NMB 16097, 140x. Gayibella y oni (Buena ea... ee Re UE RUE LIII T AU AN USE EN 46 14. Right valve, HVH No. 10533, loc. NMB 16978, 125 x. 15. Left valve, HVH No. 10532, loc. NMB 16978, 125x. Brachycythere species aff. B. russelli Howe and Теа ................................................................. 43 16. Right valve, HVH No. 10573, loc. NMB 15983, 45x. 17. Left valve, HVH No. 10575, loc. J 49 (Ecclesdown-Manchioneal section, Montpelier Group, Middle Miocene), Jamaica, 45 x. 18. Carapace, dorsal view, HVH No. 10576, loc. J 160 (White River section, Buff Bay Formation, upper middle Miocene), Jamaica, 45x. BULLETIN 329 EXPLANATION OF PLATE 7 Figure Page 1; 2. Loxoconcha (Laxoconcha) forda Bold | Sent ce Nc DL сыл тн ее 47 1. Left valve, HVH No. 10583, loc. ММВ 16178, 95x. 2. Right valve, HVH No. 10583, loc. NMB 16178, 95x. Sd охосолснах(Гохосопена) зрітоата Bold "nn НУ ее 47 3. Left valve, HVH No. 10584, loc. NMB 16135, 100x. 4. Right valve, dorsal view, HVH No. 10585, loc. NMB 16135, 100x. 5-7. Loxoconcha (Palmoconcha) banesensis Bold ........................................................................... 48 | 5. Right valve, HVH No. 10586, loc. NMB 15979, 110x. | 6. Left valve, HVH No. 10587, loc. NMB 15979, 110x. 7. Carapace, dorsal view, HVH No. 10588, loc. NMB 15979, 125x. 8. Loxoconcha (Loxocorniculum) tricornata Krutak 2... 49 | Left valve, НУН No. 10589, loc. NMB 16103, 80x. | 2 10. Eoxoconeha(boxocornicalum)fischeri (Вау) 49 10. Right valve, HVH No. 10590, loc. NMB 1701 1:855». 11. Loxoconcha (Loxocorniculum) dorsotuberculata (Brady) ................................................................ 49 Left valve, HVH No. 10592, loc. NMB 16985, 90x. 12. Loxoconcha (Touroconcha) lapidiscola Hartmann? _.................................................................... 50 Left valve, НУН No. 10593, loc. NMB 16995, 100 x. IBS IDE oxoconchas(LoxoconchaerunasBold е о 48 13. Right valve, HVH No. 10737, loc. NMB 17189, 135x. 14. Left valve, HVH No. 10737, loc. NMB 17189, 135x. 15. Carapace, dorsal view, HVH No. 10737, loc. NMB 17189, 100x. BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 7 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 8 DOMINICAN REPUBLIC NEOGENE. 7: BOLD EXPLANATION OF PLATE 8 Figure IG yrtherura.creseraabolda сз ЕН С У.С E а у Right valve, HVH No. 10609, loc. NMB 17011, 110x. 2 GCVINHEPHIESDCCIE а а ant Во ТЕ 2222511. 2 мы ЕИ Right valve, HVH No. 10610, loc. NMB 16090, 125x. ӘЗ OT ресі Е EC ОЛИ НП oon ue ut HET A le Left valve, HVH No. 10611, loc. NMB 17011, 100x. CS ONSET A IES DE SSA o ы ган D uM I IE ERE EM UE sd ocu pM t PEE 4. Right valve, HVH No. 10612, loc. NMB 15983, 115x. 5. Left valve, HVH No. 10613, loc. NMB 15983, 115x. SLU AID ЕКЕН а» ПН eh a аға EE Left valve, HVH No. 10614, loc. NMB 16156, 120x. 7,8. Cytherura species О ........ VV E DU NEEDLE Um cor HD RARIOR суш; 7. Left valve, НУН No. 10615, loc. NMB 16148, 105 x. 8. Right valve, HVH No. 10616, loc. NMB 16148, 110x. Э ORT ASAT RE SS LTO Е oe RPO ба DD uU еа ооо A Left valve, HVH No. 10617, loc. NMB 17010, 140x. ПО ОНИ РАТА реЗ Сп a eto Rer TORQUEO ON А ТЕ. Right valve, HVH No. 10618, loc. NMB 17003, 140x. аб ренетика DOES НУ OE ы мера ЕБ ЕК каны кала амин tor IT NE Left valve, HVH No. 10748, loc. NMB 16093, 130x. 12, 13. Semicytherura species alt. Si. drayaensis Bold ов а aie нам Polen. 2200.22 12. Right valve, HVH No. 10619, loc. NMB 16054, 110x. 13. Left valve, HVH No. 10620, loc. NMB 16031, 110x. ТАТО SEHIGVIBOEHIOISDSGIS А NES. а лети teta ЕТА 14. Left valve, HVH No. 10622, loc. NMB 16993, 100x. 15. Right valve, HVH No. 10623, loc. NMB 16148, 120x. 16. Left valve, НУН No. 10621, loc. ММВ 16973, 100 x. Т7 Hentieytherurarcranekeyensiss Eur]. o A ы IE ыы IU UN NIE Carapace viewed from the right, HVH No. 10625, loc. NMB 16978, 170x. Le Sie Hemieytherurasbraaye. (QUEDO due sivc De S DEBER ТЕП ТИК iL ман АЕ Е tel: Right valve, HVH No. 10624, loc. NMB 16978, 170x. 19° Нетисрттекига ресе ыы ut c CM TEIL INE NE ONE QI AM acu. Carapace viewed from the right, HVH No. 10626, loc. NMB 16978, 160x. 85 Figure 1-4. BULLETIN 329 EXPLANATION OF PLATE 9 Eucytherirasex eu complexa (Brady)... талант ЕЕЕ 1. Left valve, HVH No. 10627, Station 1021 of Drooger and Kaasschieter (1958), Orinoco-Paria shelf, off Trinidad, 140 x. 2. Right valve, НУН No. 10628, Station 1021 of Drooger and Kaasschieter (1958), Orinoco-Paria shelf, off Trinidad, 145 х. 3. Right valve, HVH No. 10630, loc. NMB 16132, 190x. 4. Left valve, HVH No. 10629, loc. NMB 16964, 155x. 2 алған а та а На Ны 22.0 E TEM x 222222 0.022- Right valve, HVH No. 10631 (holotype), loc. NMB 17183, 150х. STATUO ОШО Ө ANI Lo: ERE ЕЕ C NS chs) НА 6. Left valve, НУН No. 10633, loc. ММВ 17008, 160 x. 7. Right valve, НУН No. 10634, loc. ММВ 17008, 170 x. e LI O ES oe or ehe се ШЫ Do ЕНЕС Left valve, HVH No. 10635, loc. NMB 15983, 150x. АНАТ OR E пене пантери reds OEE 200 ере ње co е 9. Left valve, HVH No. 10637, loc. NMB 16148, 180x. 10. Right valve, HVH No. 10636, loc. NMB 16148, 170x. 2 LEIA ОВЕ US ID) | с... МИА ee LM Me NL RUDI ME UI INR. - Left valve, HVH No. 10638, loc. NMB 16125, 135x. SEEHCUIHOFHIGNSDCCICSSES E 2... ы dU M RH ПЕР Ls ш 12. Right valve, HVH No. 10639, loc. NMB 16978, 175x. 13. Left valve, HVH No. 10639, loc. NMB 16978, 165x. Е BUCY EREVIETIDSDECIES: б cov TREE ON, 00. Е E Left valve, HVH No. 10640, loc. NMB 16108, 130x. Be EAL LCT LG СВОТ А oleo. ТТТ Т Aut stem uum л Left valve, HVH No. 10642, loc. NMB 16132, 125x. UNICO оне те Уе ата еа o 0 20 nl. eR TRASEROS MILIA Am ae HN д1 Right valve, HVH No. 10641, loc. NMB 16132, 95x. OE species аі К. abyssicola ОМ. Oe. 1) AS екы Left valve, HVH No. 10643, loc. NMB 17183, 125x. 21901007 kmgmar (Bold) 12.52... 2.2... ТС dm SE TELS SMS. ooi ЖИШШ ИН 22 Right valve, HVH No. 10644, loc. NMB 17183, 130x. BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 9 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 10 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 87 EXPLANATION OF PLATE 10 1-3. Cytheropteron (Cytheropteron) guraboense, new species ................................................................ 60 1. Left valve, HVH No. 10645 (holotype), loc. NMB 15978, 125x. 2. Right valve, HVH No. 10646, loc. NMB 15978, 135x. 3. Right valve, HVH No. 10648, loc. NMB 16973, 135x. 4-10. Cytheropteron (Cytheropteron) dominicanum, new species ............................................................... 59 4. Left valve, HVH No. 10649 (holotype), loc. NMB 16964, 180x. 5. Left valve, HVH No. 10650, loc. NMB 16964, 170x. 6. Right valve, HVH No. 10653, loc. NMB 16978, 160x. 7. Left valve, HVH No. 10652, loc. NMB 16978, 160x. 8. Left valve, HVH No. 10653, loc. NMB 16978, 160x. 9. Right valve, male?, HVH No. 10654, loc. NMB 16156, 180x. 10. Left valve, male?, HVH No. 10654, loc. NMB 16156, 180x. 11-14. Cytheropteron (Lobosocytheropteron) palton Bold ........................................................222222..24 24 2222. 61 11. Left valve, HVH No. 10656, loc. NMB 15982, 90x. 12. Right valve, HVH No. 10655, loc. NMB 15982, 90x. 13. Left valve, dorsal view, HVH No. 10657, loc. NMB 15982, 95x. 14. Right valve, dorsal view, HVH No. 10657, loc. NMB 15982, 95x. 15-18: -Cytheropteron (Ayersovalva) bijuduvali.new:species: o a 61 15. Left valve, HVH No. 10660, loc. NMB 15982, 95x. 16. Right valve, HVH No. 10659 (holotype), loc. NMB 15982, 115x. 17. Right valve, HVH No. 10662, loc. NMB 16097, 115x. 18. Carapace, dorsal view, HVH No. 10663, loc. NMB 16039, 95x. BULLETIN 329 EXPLANATION OF PLATE 11 Figure Page ПСА АНИ ПИ qns РЕ Е E SEM ае тар аршы M M cnc ME MN MIS 62 Right valve, HVH No. 10665, loc. NMB 16103, 85x. 2 Parc THerdemiohonpicBolde Ы "OS ten RU M e tacos rco RENE USED TUI USE 62 Right valve, HVH No. 10666, loc. NMB 16964, 85x. Ae linh а lat uses ТН 0 E эе E ОВОИ ЕЛЫК и ку T к acer 63 Right valve, HVH No. 10667, loc. NMB 16148, 95x. BE ВИ АИ а ара OO WSDeCIeS: с... ce LUE ng „Ун Ты OE C s 62 4. Left valve, HVH No. 10668 (holotype), loc. NMB 16185, 115x. 5. Right valve, HVH No. 10670, loc. NMB 16185, 110x. 6. Left valve, dorsal view, HVH No. 10674, loc. NMB 16184, 100x. 7. Right valve, dorsal view, HVH No. 10675, loc. NMB 16184, 100x. 8. Right valve, HVH No. 10673, loc. NMB 16184, 100x. 9. Left valve, HVH No. 10674, loc. NMB 16184, 100x. 10. Right valve, HVH No. 10675, loc. NMB 16184, 110x. 11. Left valve, НУН No. 10672, loc. NMB 16184, 100 x. Id Dem OU A ы кке Ку кыа dre mt к E rro AO ELE EUER ns 63 12. Right valve, НУН No. 10695 (holotype), loc. ММВ 16039, 135 x. 13. Left valve, НУН No. 10696, loc. NMB 15982, 145 x. 14. Left valve, dorsal view, HVH No. 10696, loc. NMB 15982, 190x. 15. Right valve, dorsal view, HVH No. 10698, loc. NMB 16097, 145x. 16. Right valve, HVH No. 10697, loc. NMB 15982, 120x. 17. Right valve, HVH No. 10698, loc. NMB 16097, 100x. Eos BPCO MONOC OS HOW SPECIES ЫЛ e es ае 64 Right valve, HVH No. 10700 (holotype), loc. NMB 15978, 95x. PLATE 11 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 12 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 89 EXPLANATION OF PLATE 12 Figure Page кол анн узд с C OD PD DREAM 22 67 1. Right valve, HVH No. 10708, loc. NMB 15983, 175x. 2. Carapace viewed from the right, HVH No. 10707, Station 1142 of Drooger and Kaasschieter, Orinoco shelf (1958), 170 x. 3...Pellucistoma:species:all. P. magniventra аата o an «1 een AUTE nel 66 Left valve, HVH No. 10676, loc. NMB 17011, 135x. AUSSCIELOCHIIMSESDOGIGC E EE EE. о ENS UR DENEN COT NO YT кру уг су АН Les ies em DE ЕЕ 65 Left valve, HVH No. 10681, loc. NMB 16978, 115x. SSMIGIOGVEACLOSHOWOPNOSUEDESCC E ... mee c ы л тл MS RM EE ILLIS TID ure еа 67 Left valve, HVH No. 10684, loc. NMB 16039, 155x. OSEA TU AO OS COTAS ECOS LAS Mou Ко ш г ыа ERAT e О a E 65 Right valve, HVH No. 10689, loc. NMB 10689, 90x. ПАН ХОРСКИ O А Ул B IER 65 Carapace viewed from the right, НУН No. 10677, loc. NMB 15990, 145x. Эертапокозотовресс И c M PE TNI EI I mu cM eium ecc. Hn. ШЫДЫР. elu. 65 Right valve, HVH No. 10685, loc. NMB 16145, 150x. 9—12.: Pellücistoma? spurium:Bold? 2... Er НИ кк мел ORE RE UE I MIU C 66 9. Left valve, HVH No. 10692, loc. NMB 16039, 105 x. 10. Left valve, НУН No. 10691, loc. NMB 17017, 105 x. 11. Right valve (destroyed), loc. NMB 10639, 105 x. 12. Right valve, НУН No. 10694, loc. ММВ 17011, 105 x. PS УТО ТЕРДИ SES CCUG Е ve... RETO SUC D UT LONE UNUS ЛЕ I I E ee 69 Left valve, HVH No. 10727, loc. NMB 16097, 125x. TA АНИ ВИ ТА Ере Та esie ПТ лы N. о у с 69 Carapace viewed from the right, НУН No. 10728, loc. ММВ 16180, 125 x. 15516 -PRIVCLOCYTHELEISTNIGLABDEWESDECIES с... 22202252 he ARA N aa a 4. 52 15. Left valve, HVH No. 10594 (holotype), loc. NMB 17183, 100x. 16. Right valve, HVH No. 10595, loc. NMB 17183, 100x. 17; 18. -Phlyerocyiheresrectasnew:speciess 22222222. nn ne 53 17. Left valve, HVH No. 10596 (holotype), loc. NMB 17011, 110x. 18. Right valve, HVH No. 10597, loc. NMB 17011, 95x 19:20 PUYO VN TE сика те трее ОМ Le 52 19. Right valve, HVH No. 10600 (holotype), loc. NMB 16156, 115x. 20. Left valve, HVH No. 10601, loc. NMB 16156, 100x. BULLETIN 329 | EXPLANATION OF PLATE 13 Figure Page JE Ome XESTOLeDETIN ONT carey pecio еее Л Mns vocet! NES rei СВЕ ant MORE Dos sal mto me ee e. 68 1. Right valve, female, HVH No. 10714, loc. NMB 17010, 120x. 2. Left valve, female, HVH No. 10716, loc. NMB 17010, 120x. 3. Left valve, dorsal view, female, HVH No. 10717, loc. NMB 17010, 120x. 4. Right valve, dorsal view, female, HVH No. 10717, loc. NMB 17010, 120x. 5. Left valve, male, HVH No. 10711 (holotype), loc. NMB 16145, 110x. 6. Right valve, male, HVH No. 10712, loc. NMB 16145, 100x. 7. Carapace, dorsal view, male, HVH No. 10719, loc. NMB 10710, 145x. 8. Right valve, interior view, female, HVH No. 10715, loc. NMB 10710, 120x. AS К We Брестово о карие cai oe eU 67 9. Left valve, male (holotype), НУН No. 10720, loc. NMB 16145, 85x. 10. Carapace, dorsal view, female, HVH No. 10722, loc. NMB 16145, 90x. IIS ОИ НО ПИТА ПЕТ 5-02-72 0 и... TAM MR 68 11. Left valve, female, HVH No. 10723, loc. NMB 16030, 105x. 12. Carapace, dorsal view, female, HVH No. 10724, loc. NMB 16039, 105 x. 13. Right valve, female, HVH No. 10726, loc. NMB 16125, 100x. 14. Left valve, male, HVH No. 10725, loc. NMB 16106, 145x. EA О РАК IES a y Микки HERD и ee 70 Right valve, HVH No. 10729, loc. NMB 16108, 150x. NOR Uroleberisy (or guaraeBoldegt r= ер... Mu 5 ОА Ве UB UE 69 Left valve, HVH No. 10730, loc. NMB 16097, 115x. 17-19. Uroleberis triangula Bold 17. Right valve, male, HVH No. 10731, loc. NMB 16097, 105x. 18. Carapace viewed from the right, female, HVH No. 10732, loc. NMB 16182, 100x. 19. Carapace, dorsal view, female, HVH No. 10733, loc. NMB 16182, 115x. BULLETINS OF AMERICAN PALEONTOLOGY, VOLUME 94 PLATE 13 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 91 INDEX Note: Page numbers are in light face, plate numbers are in bold face type; principal discussion pages are in italics; F = foldout inside front cover; B — foldout inside back cover. abyssicola, TOY TRON ЛК ut E ОО е, 59 BAR Нана E TERN 59 abyssicola (aff.), SOTA IN ло с ANS T ES МИРТА ES acta aah OC QS GOV SSIGO MUN Cy PET O DCL O e e E SU T ECC acanthoderma, Echinocythereis АССИС Е BOWALE, О e IO ONZA ВО ШОО а ас (ACUISTA Watds Ad e E E И MASAS О О в) а а ос N а ICHS АНА ЛУ у ку ыш ылкы хы су ыу E E A уу ол суо кими о OR EE E agoiadiomensis, Hemicyprideis AFULA TUNO Е O ШКОЛА a те DEN С 222 E IRI алы QT УОС Л ОЛ CO су en CUATE S RO ОГЛ ОО СЕНЫ о Е ee SEAS қал ы Жие v Т NIEMAN Ca науа А а ашын АКы ar oc ы ы aN AM NL E NS lie CLO SA ы р оез ee ТАШ во Ова у ЕТО [dene СӘУ A 2720-22 “ООО О КЛ Г ы а s RE oe 5,13,26,27,F,B Ulla ETC AAA a rn ee en bE eee 62,F,B ATMO GE SUS mica tera deta ci Ueto cancun Aue. cx икке cn T M d 5,12 Baya вала 222... 6,9,12,14,16,19,21,23,25,28,34,47,48,67,F LE OS 6,9,12,14,16,17,23-25,27,28,32,34, 39,40,47,50,58,63,69,70,F ADA ВО ОО И оа 13,42 EMT MN I ae Sf e a a e 3: 13,42,F,B АТООВ IV GC Deana ee res ee 42 AMNH [American Museum of Natural History, NEN V Ol ANNA AN Ente 16,34,39,41,58,66 amygdala, RUND АЕ mer rete ЫМ eq RM E EDU лаш Ene SSR qo rae СТЕ nee 33 GI САО Ch) Nd ПРЕ eri cet eR T кыйса 33 amygdaloides Май. OD ION gato Badia е 25 amygdaloides var. oblongata (aff.), Bairdia .......................... 23 Anadara (Larkinia) patricia (Sowerby, 1850) ....................... 12 AAG ALG алиа оаа OS o NO T 14 Atala GeO rivet Olea os ео е 33 anderseni, CUINA a O А 28 АИ «oe е MM E a ce 28 Аво титан ова о ар алта ЕТ hee er a 10 AE A алата ci И 70 Gro USE Bay meet se. etri E а аана е 21,66,70 Рао ИЕ У вео Се sik t ар DUC ER NE EE 12 AnsunllagEormalon o co me 5,6,12,14,21,48,67,70,F ОЛОИ OLED CT ЕЗ ee 10 angulata forme “acuminée”, Protoargilloecia ......................- 20 UNSUSCARÖCCHNOBVIhBreIS. e E E ide 40,B Anomocytheridea pascagoulaensis Mincher, 1941 ................. 24 ААО Е а аа 51 antillea, ШОХОСОПОПИЕТЕ ы ете NE ER 48,49 "TPoxoconela» ОХОО ЕСЕСІ 50,Е МА ИЛ ДАТ e es d ТІ 14,23,F,B NESIOIEDENISC EN es =: QUOS Вота О NE SN NS E I S тл: 23 antulea normal 100m UCOXOCONDA IA TE ИЕС НТА 48 ЙЕ ат ООСО ОНО re EN E antillea var. nodosa, Loxoconcha ................ antillea var. oblongata, Loxoconcha antillea var. pteryga, Loxoconcha ................ ИЛИШ МӘТ Рио оса О ОСОН e een en Pow dick А маси econtra патената equ cuo fied Greater 2722. Еа ы ta Иос ОЕ Su Martine Willette ond? Bay s mee Aphera islacolonis zone of Maury ¿ATADOS БОШ ШОН S e па пао а uet ise e EM 19 NASSAU A A een arayaensis (аш) Semicyiherura ааа лалы Arca Zone Пр Ыы ы es ?Argilloecia sp. А ARUBA AO OS CO MAN ME Assemblage Zone nee CET Ае ну ЧӨН ШОЛ К неси: Atlantis cruise 1947 auricula, plum eI рх rae к ак E ы Hermmeytherer er en AUF РО КОЊУ ОЗЫ ee ne ampedala (Stephenson 1944) СИТЕ. 11,33,F SD) CH A Tampa dalan(S tep caso 252 252-001 2 33 АСИ у окы END) ee I sp. aff. A. cicatricosa (Reuss) ... АСЕ АЛОЕ) dto ea ds DECIR ни горан ООВ ОТО Бор пап 2222 mactopuncidid Bold; ОАО) АИ ВИО = trigonula (Jones, 1857) перемен тине cd c M een ee АЧА ОООО ЬЬ ААТ ОООО О ОНИЕ. LA ee Ваһатаѕ Вітіпі Ваната ао aan see 10 Вата О) ЕЕ аа саны абы 19,24,28,40 TEE NEGO Edd EA нн 13,22,23 amygdaloides Brady, var. oblongata Bold, 1946 ................ 25 aff. amygdaloides Brady, var. oblongata Bold .................... 23 Abo DEW Balder near 29 sp. af. B. Jormosa Brady aan: qs 23,F,B InewenlaEdwards 1944 алана 23,F,B kmene osu Brady, 1902 to ee nee, 22,F,B oblongata Bold OI eI cle nea ТТІ A E A UMS 23,24, F,B Bairdoppilata Coryell, Sample, and Jennings, 1935 ........... 12,22 oblonzata (Bold. 1946) 225400. елене І 23,F,B Dur Podio iis een 727777 oos RON 11,18 Baker and Hulings (1966) ........... 12,17,23,29,34,35,49,50,56,68 banesensis, ОООО sedet ctt dc uu К ee out E ee 48 Loxoconcha (Palmoconcha) .................. EE 13,14,48,F,B banesensis (aff.), Бал ОШ ИЕ RE E Bra Dee nee 48 E E E E A E а ee 48 Бар. ады анасынан MEET 51 Basslerites Howe, іп Coryell and Fields, 1937 ..................... 46 ЖАШАРЫН a ата Ты N ЛК eu Nd EN 46 Bate, Wiittaker, aud Mayes (198)... дане. 31,49–51 bathyalensis, AUDIO ADI IH tcr auc de M E ee 22 NI USAS RN E E IA СЕЕН 21 Belize wes НА О а ee MUT ан 40 bellipulex, КОНО ce ae pet ME ОАО bellipulex (aff.), Costa Belowe ker то Benda and Puri (1962) Пе ој ОТО een Esc dS den Benson and Coleman (1963) .................... 12,13,33,41,47-49,62 Benson and Maddocks (1964-2222... een 49 Benson аса Peypouquet (1983)... 222.1. uu н ae ЭГ, Pomon ond Tawo 0964). Nee оо ea айланы 64 Pomon е ші ӨЛ ee 38 Benson Delgrosso; and Stemeck (1983). nn. nennen 43,44 VA O ОШОН ТИЈ en ptu E и lea Андан 35 Bermüdez (1949) МОЛТО MUNSEeVella ues nn Re 31 bermudezi crebripustulosa, VR MA a AS A ee A 38,39 VALS РИТУ ука ККУУ A O 38,F bichensis, ОРТО ОЕ AO UE AE, EON E MOOV Ое ie incoado Dira Аб dd Biju-Duval, Bernard bijuduvali, Cytheropteron (Aversovalva) ... АКЕ A o T A Rot PROVE A ee he кшш ек н lo BM(NH) [British Museum (Natural History), London England. URL een nenn 16,40 Boldt 1949). ине 11,13,14,19,22,23,25-28,32-34, 36-39,41-44,46-50,56,59,60,62,68 ОКО O a a 27,38,39,41 BO IS тар зи ы c ВА ТАМНЕ Б КЗ ee 12,30 Bold (19576) nase 17,32-34,36,37,39,41,42,48-50,56 БОШ КЫ a ере кы e е 13,42 БОС уенга Ене: 12,14,15,19,26,33,39,41,48,49,58 ШИШЕ ДРИНЕ АРА ИН ss акрын 14,25,36,37,48,49 BurLETIN 329 BO ALICE) re н Ер р ү к ыс Co EET DOS 49 Bold (1963а) “39,39,49 Bold: (19630) nn 7,10,12,13,15,17,21,22,24,27—29,34,35, 38,40,41,48-50,54,56,58,59,69 Bold (1963c) 34,35,38,66,68 ВОЈО Вајпер ive d me S 39,47 Bold (TIGA) cT e а 29,33-35,38,39,41,48,49,61,67 ВОЈА О бај а ea es 65 НО (TIOS sa ee 11,13,17,23,28,32-37,41,50 Boldkel 0009) Se anne 6,13,14,25,34,38,48,59 ВОЈА бер мети eve ea 13,34,36-40,42,48,49,56,58 Bold 6196060855. 0. 7,13,24,26,27,29,33-35,38,39,41,49, 55,56,59,61,65,67 Bold:(1966d) ........... 17,19,22,29-31,35-37,38,49,50,65,68,69 Boldie19666) a. nee, 34,35,39,40,49,58 Бок ОВО И RR 35 ВО ба) en em 34,38,39,42,66,68 ВОТ). 34,39-41,48,49,56,58,59,61,65,66,68 Bold (1966) 22212. 6,10-24,26-32,34-50,54,56,58-69,Е Bold:0969) en ka 7,18,19,21,32-36,44,46,47,49,68 ШОКШО ГО Л ДУ a oe ete ee 17,35,38,39,48,56 Bold (19705) 22220 6,11,12,21,33-39,41,48,50,58,59,66,70 Bold. KIT Ta ernennen 33,34,37,38,41,48,50,66 Bold (197 1B) 5 7,18-21,26,29,34-42,46-49,54,58-62,69,70 Bold ОГ Za) та тестенина 7,17,18,24,26,29,33-36,38,39,41,42,46, 48-50,56,58,59,62,67 ВОЈА О УД та 23,32,33,35-37,43,47,48,50,66 Bold: 019/33) nenne 23,25,27,28,33-35,37,41,47-50,63 Bold’(19 3b) тата 7,29,32,34,38,39,41,42,47,49,61,62,68 Bold (19758) шэ... 7,10,17-19,22,24,29,33,35-40,42-44,46-49, 56,58,59,62,67,69 ВОО) о pei Le ee, T0153) 157 ВОЈО ТО ЛО ОНЕ жау reds edes d 9,10,17,19,21,23,24,27–29,31–38, 40,41,44—47,49,50,56,59,61,62,68,69 БО АО РА ЕНИ cy m ert E MK ае. 7,19,29,31,33,35-38,45,47,49,50 A ee 7,14,24,25,33,37,39,47 BOM eer cos vests TESTO OS E 12,36,41,65 Bold (19785) ... 7,19,22-26,29,31,32,34-42,46-50,56,58,59,62,65 ВОЈА УВ а сы 2; 6,7,10,12-14,17-20,24-28,30-39,41, ; 42,44—50,61—63,67 BoldEllY 92) 7 ee rA MG rede 28,32,33-37,50 BOLOS nee ee! 7,9,11,28,31,36-38,42 ВОЈО 955) n н ee en en Bold’s private collection (NERO AD ¡ATINADA EL S ВО (ОО и р рашык IR epi the у ОЖ Bolli and Bermúdez (1965) Bolli and Saunders (1985) ENT ЕЕ Bonaduce and Pugliese (1977) Bonaduce eral AISO) Senne nn an Bonaduce, Ciampo, and Masoli (1975) ............................... 63 Bonaire eio nia tA A o ы К ти ER EC RE 32 IBOSQUELINIG sm: akk B: carinata Baden TS 42 Bowden Formation Ў " Bower ОН РВ РИК tee MORE TM E ET нудепуву етен Alexandr 19538 ИЕ ст cicatricosa (Reuss) deformis (Reuss) ........... mucronata (Brady) russelli Howe and Lea, in Howe and Law, 1936 sp. aff. B. russelli Howe and Lea, in Howe and Law, 1936 ........ к cum EE AME 6 .... 13,14,43,F,B Spr c£ russelli Bowe and Led ыалы noires eee И ИЛЫ: 43 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 93 trigonalis (Jones) var. macropunctata Bold, 1946 ............... 55 буаелурува ХОШ ее Ue ee, 11,36,F Bradleya Hornbrook INSZ NA A A pe 37 dictyor Brady ae MER EI ee 37 exteros aictyon Bradys воо) 12,15,37,F hornibrookaBursel 900 em таны асы еке keins 37 johnsoni Benson (in Benson and Peypouquet, 1983) ........... 37 ?Bradleya dictyon (Brady) Втаа все Е. Brady (1867) Brady (1868) Brady (1869) Brady (18702) Brady (1870b) Brady (1880) Brady (1898) Brady (1902) Brady (1911) Brady, Crosskey апа ‘Robertson (15574) ии 25 Bradyzand:Nerman (1569) meer ee 56,57 bradyi, есеи o occ E Reed Bice 56,F,B атата ЖЕШ КК ТЕСТ 56 Оно kA Re бенен eec ken B5 Breman (1982) ....... . 12,26,35,38,39,50,61 Butler (1963) .... 33,36,37 Byram manhe т e ER о а 27:80 Byihocerauınasaklornibrooksal952 ee ETT 64 mestayerdedtommbrook Al 95 2 FF. ТИЛЕ 64 monoceros n ри au pp e 5,13,64,B Dita Eee D E ES BytlioayprissBrady220880 83 ИА een keyuaBoldel9 63D. eros reete a N TS leva Panir LIGO eurn onea ан enero ai ЕНА pachyconcha Bold, 1946 TBYLROCYDTISSD wore een RR ETT LGAs Gatapsydiaxsss woe v teet ERO me 9 [Gasl@assigerinellassersen na Ы ЫТ M M 9 опело Gyrherellass seco m T E ERE: 17,F,B cahobensis, Perissocytheridea .......... Die ih cet 12,14,24,28,29,F,B айо ОЙЛАН Renee 12 calcitrapa, Paracytheridea Campylocythere Edwards, 1944 ... al 45 Рае E A E ee 45,F Gampyloeviherelisp nes vs e RR EN 44 Campylocytherini (tribe) .. 44,45 Єараѕ ав ANA en doe oc eet ordeo er mS d 9 Carbon 98 2 een aan 14 Carbonel and Pujos (1982) 14,29 Carbonnel (1966) Carbonnel (1975) .... Сашьреалек а сте AR brackish water zonation northern Province WESTIN e AEG Ire END RC S Garibellasleeter. ШО дс 2. cken СЕТ егет Яр rer Рива ние ве па Ло ee Jona (GUACO) аи nenne carinata (aff.), Bosquetina Carreno (LIS) d Ecce einen et @assigennellal@älser. e eco conecto eR ER 9 Cassigerinella chipolensis / Pseudohastigerina micra Zone ........ 8 Catan Varan E. anne ee 9 Gatapsydraxsdissimilis Zone... SI a eee ete NN Catapsydrax stainforthi Zone ...................... Cativella Coryell and Fields, 1937 sp. aff. C. moriahensis Bold 15 navis опус айа Fields, 1937 2... semitranslucens (Crouch, 1949) aff. semitranslucens (Crouch) cf. semitranslucens (Crouch) caudata, Phlyctocythere ................... Caudites Coryell and Fields, 1937 Желеге Те оте к Se ne сен О рана leguminosus Bold, 1963c medialis Coryell and Fields, 1937 ................. Sua. 34,F,B n: sp. ай С. medialis@owyelland. Fields ne a 34 nipeensis:Bold, 19462 nee dus M 11,34,35,F,B rectangularis (Bradys 1869) 522-22-22... de 34,F,B saceniBoldad9470b-. ае ы EL 11,34,F Spe alt. С. sellarasi(Howe:ands Neil) 2 0022 210 34 S O ee ха а aden E ым E E 35,B EDU Ата от бана 22-95-22 мени 7,17,19,25,32,34,46,5 Pacifico 12151 CCI Уа CAN WTO VANCE I о и а esse ee 28 Cercado Formation ...... 5-7,10-15,17,19,21-24,28-32,34,36-38, 41,42,45-47,49-51,54-56,58,60,62,63,65,67-70,F,B cr (deine) а А een Chartier, Albert ...... Chesapeake group Chipola Formation ChivassDebeckervsand Shelley:(1983) аса 14,29 ehoctawateheensis; Proioeyiherettan. DA ин 47 Choctawhatchee Stage Biephoraklaslesı.. 2... Chorrera Formation’, жазған аласа ала Ор Cibao ROMAO: а балала тыры o eee cicatricosa, Бғасиуеипиеканн е ЕКЕ An GVDridinasss insel A МОДА» cicatricosa (aff.), Aurila .. Сірего Formation ......... clathrata упија екен ОУ ae с сш Golalongorandibasinu(9 80) c: nn Aeg 58,64 Colombian ner 7,24,31,34,35,49,57,58,61,67 (топтан Өссе A ОБИЛИИ 40 Lower Magdalena River valley ..................................... 59 сотріеха, MONA ce але ЛОН AM E Eucytherura М ?Eucytherura 8. complexa А у нае еа en NR ER ER RE 56 complexa (ex gr.), Eucytherura ......................... gut: 56,F,B BOMDKESSAMBENISSOCVIRENIdEAS. ене un oo re E ИЕ 28 confragosa, JOINT SEE TU оаа E 31 КОТЛЕТ кла наићи ви ue Ae 9-14,31,F,B conjragosa (CX ET) Radımella. ЫС 31532 confragosa form A, Radimella .................... 4 ...... 10,31,32,B COUMO ДРА 31532 congestocostata, COGUIINIDG sect tao dee КЕША dU 5 10,11,15,38,F,B TPL IN E cate een RB 38 contortus, Sclerochilus CONVE ATA Шан они имена а ови Оле 1968 сине анаа а ВБ 13,38 congestocostata (Bold, 19635) .......... Зо 10,11,15,38,F,B mumua Bold. 1963DJ) I... nern dig 36,F,B Со@утра CONDES TOCOSTATA: ZOnE oiris ӘРЕ лана ыд» COO UE 8 О | ОВО o en BER DUE re i e dea do 64 Coryell and Fields (1937) ....... 12,13,19,34,39,41,42,46,50,58,66 Corel, Sample, and Jennings (1939) men ea. 22.2 12123 COEN OD Bios seach Е Бала MOL dE 39 bellipulex Levinson in LeRoy and Levinson, 1974 ................... wore c eMe c TRE Soana ВОН ab. РОДИ Dessin u... er nase nr 39 ОШКОШ, ОНЕР IN Ж tad 13,39,F,B ONO РЕ ех TEn On 122 аим Meer 39 COUA Rica ne 7,10,19,20,29,31,32,34-36,38,40,42, 43,48,49,57,58,60,61,65,66,68 Bil BASING A ee Hacer dae 7,9,50 cranekeyensis, VEG DATI ACE I0 da аас T TR EN 56,F,B ¡Aid A I AAA AB О oro irt 56 tranekeyensis (ай), Hemicytherura............. nl. ete тн 56 META ERE салы UEM АЗЫ tori Macc kon Bun. 54,F,B РШ ТОЛЫН ЛИНА ТАНА O Ы ы een 28 КОРОМ борне A CMS RE e Ы 20,41,62 SERBIEN A A se n ese ы РВ ne er УИ 65 Cronin (1983) us 12,20,21,38,39,58,64 (ПОП о. ELE al амбар 7,22,35,40,41,64 а 8 МА БЫЗ ША ИО Gd. ааа» 39 (ӨШІРДІ ар ы dT 10,17,19,22-25,27-29,33,35,40,43, 45-48,51,59,62,63,68,69 JETER (MMO Ozer A ee ee 10 IM Ca? 35 PELO o И ee 9 O tll... > Aa eile iit duc sedet iar es 20 A BEER. NEN 25 Oriente Province, road itom: Sierra de Nipe to Mayari ......... terree 38 SW of Banes on road to Santa Isabel de Nipe ........ 19,33,59 seme e Nen T M TN UE 25,28,37,50 trail from Victoria de las Tunas to Vásquez ............ 23,47 West of Antilles, Bahia de Nipe .................. 22,34,48,50,62 Saad REF кр енна N 10,33,47 JEN Же уне ы а RP ын Universidad de Oriente, Escuela de Medicina БРЕШЕ ОВО ОИ АМЕ vH Роан опао. е dora OP ae Boo dh Lis MOD Жайчы н н Р КЕНІН Cerro Verde Member Ж cubensis, Cytheridea (Haplocytheridea) ........................ m CUDEnSIS АШ EO O ао A зен» ++ АТИ GHOSTS. Сирек, LI CITICVDITOCIS een EMEN cubensis mammidentata, Trachyleberidea cubensis var. mammidentata, Cythereis .222....2ш van ОАО een НЕЯ Та олақ Cuneoceratina pedata (Marsson) group ................................ COVA ENINBLOCSINETE E саен Ос Cushmanidea Blake, 1933 anderseni (Puri)? osos ES о x ур В Lo NO seed RN MK TS Пе (Bold. TIA od ERUIT EQUUS, Rees ee A A E p ЕТ ONTO CTS JONES EBT анг tenons ОИ ДЕЕ pascagoulaensis (Mincher, 1941). 2 ...... ай pascagovlaensis (пое) РА АНИ И ауа айыз а аа en ee aeina Bold, LIO ева сане М d es o REM LM BULLETIN 329 Gyprideisiatl. оу V One а ал E len cipe 8 Cyprideis aff. ovata / Cyprideis pascagoulaensis Zone .............. 8 Cyprideis pascagoulaensis Taxon Range Zone ........................ Т) Cyprideis DaseagoUlaensis оле... 0 5,7,8,F Cyprideis pascagoulaensis / Cyprideis subquadraregularis Zone ..... ТОТ ЫН PU IE PTR IEEE XO 8 Gyprideisisalebrosa опеки cns. ésta A C ET eS det 8 Cyprideis subquadraregularis Zone ...... ertet е.) 8 Cypridina Оро О Reuss. USSU, saan. recess quate toos ЖОАН UE 33 ООН Вее 18905, ccce ШАА EN Enel 32 haramgenaReuss; 1850... ты СТІ 37 Cythere Де ОЮП Жейн) лла а eoo ы EUER Sd VischenaBradys8695 nee ВЧ рат о Ва 13695 nen DONE Producta Brads 1868 nn, rectangularis Brady, 1869 rugipunctata Ulrich and Bassler, 1904 ......................... 41,42 [SOR Ones e 2. ?Cythere complexa Brady, 1867 Cythereis cubensis var. mammidentata Bold, 1946 .......................... 38 deformis Baird, 1850 deformis Brady, 1911 ... dentata Müller, 1894 garretti Howe and McGuirt in Howe et al., 1935 ............... 42 nevianii:Edwards, 1944-2525 en. rege 40 rugipunctata (Ulrich and Bassler, 1904) ........................... 41 rugipunctata var. gatunensis Coryell and Fields, 1937 ........ 41 (БОЛОРДУ Bold LIAO КЕИ, 37 Cythereis (2) vicksburgensis Howe and Law, 1936 ................. 36 @yrherellan)onese1 890 та ат 12,13,17,18,19 саата воа 19636 е a a op oe 17 ЕВ dommmeanasBold; 196855... Е elo 12-14,18,F,B 60 А8 @ pandora Komicker 1963 5... 0 id 17,F арала ПА о) о ој пи јао Ба 22220222221. 0 NR 17 postdenticulata Oertli, 1961 ...... 12,15,18,F sp. aff. C. pulchra Brady .......... T M 17 ЕВ sp. aff. С. semitalis Brady ............ e 17,F,B sp. aff. C. vulgata Ruggieri, 1962 13,14,18,F,B Суве Азы сар ыы қалары В ЫНЫ o e a 11 2@ytherellapandora Kornicker,; 1963... 15 @ytherelloidea Alexander 1929 17,19 w«nbonaiadbdywanrdssd4944-. da ao иа 19 о To: 19,F,B SED eases POE PN ЛАТ ANCESTORS Bo 19 Cy iieretta Мет TOSA ie oo sio ERO ta Bee 13,46 dominicana (Bold, 1968) 891.4 46,F,B karlana Howe and Pyeatt in Howe et al., 1935 .......... 11,46, F karlana var. choctawatcheensis Howe and Taylor, in Howe et al., A CD ТІ ee ros er лы ae 47 ponceana Bold, 1969 2 Cytheridea margaritea Brady, 1866 . Cytheridea (Dolocytheridea) vermunti Воја, 1946 Cytheridea (Haplocytheridea) Сиреп Ваа е О am E 25 reversa Bold, 1946 ^m Ж 25 stephensoni во ОД Ок о е Ph 25 Cytherideis andersen Puri 9525 nr. een Cm Mn 28 howe Bold IIA a m am a 2220 002 28 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 95 Gytheropieron ват ве 06 rennen TNR ES 59,60,61 abys ОШ АМОН О DENS ee ee 39 sp. aff. C. hamatum Sars horacecoryelli Puri, 1960 leonensis Puri, 1954 ........... sp. aff. C. leonensis Puri in ы het MIDECASIS BOINA тата елы ИМОН Dalton BOE TIGO ни CORPO ERE UEM soie UNE subreticulatum Bold, 1946 т T петокот уат IYOT TAC E ARE e T RE T CES 60 videns Mern ОД Е Ра eee ЖОЛДЫ, 56 VOPRLOWRERSISQMallahng 1959) o ООА Re A 60 LYS pp AT d Ы Қанаты елене МЕн TUM eee 61 SD EA TV 59-61 Cytheropteron (Aversovalva) Hornibrook, 1952 ..................... 61 OUUAUVAIIE Ер oT o E de 10.27 5,13,61,B Cytheropteron (Cytheropteron) Sars, 1866 ........................ 13,59 GOVINICATUIM т ры ee qo Ac 5,59, F,B Quraboenser usps beet Lom 10255 5,60,F,B Cytheropteron (Lobosocytheropteron) Ishizaki and Gunther, ТОД AG etre anne IL RES palton Bold, 1966c ............. “Cytheropteron alatum Sars” .... “Cytheropteron inflatum” ....... VM 52 ЄЎЇЛӨРИЛЙ Sats TOO O tet TEE AENEIS CLQUNT AES ALS еб оиро, EOM RN es cresera Bold, 1968 $us SN JONON Minhen LIAE cx ТИМИ eC Kingman ВО ТОО пене тате eR TN ТВОЮ ООВ A o за амино зраци Са АВО о бо баци ИЕ Se 54,B e ea Вб 54,55,Е, ЗВ NA RD te ај B oe 55 SIEHE AE Ie Cp dot NOME РОА А а АТ AD 54,F,B A ОКА АЛПА S SS 54,55,B iyd en 5 Spr О e pM UIN M E 8 owes 55,F,B Өрен А ИВ ere ДРАВА ОРИ а OSEA ers SU DOM! SAA A ME 874225 55,F CINTA ON ASO MIA RTO Up ret праве A 54,55 DEDO MICA ate МОЛИ 36 СТОГА уа стос РР е ое RA Coo ape d Iq NOE 22 deeper-marine (abyssal to outer neritic) species of Cytherella . 18 deformis, APURE ECT SERT RRA A a SEI EON, IN 32 вас увере s NINE e SORA OO du RON EE 32 ВРТИ AIN СЫРА САНАЛА Ола 32 та ERTL СОКА АНРИ МЫ 32 [OUI A ТИ: C MAL 40 LETH) CNET ОМА AN MOERS RE Ct 32 уа аа олет c TREAT EDO NOD NN 11,32,F delicata, INAVOGY UOTE NS Иа ee а eaa DE 39 PTV IOVI O ra а ats Sees ы A а ата 39 dentita KENNELS eed ette ыы RTI ARE К edem Ne ore ae 42 Department of Geology, Louisiana State University, Baton о а LA ВА АКО A Уе ete 7 depressa, Kangarina Quem. 58,59, F,B dictyon, а MEC DEM uem 37 ва у а тт TEI EEE RN E 37 суон (R gro) опасан аа РА ОВО E Digmocythere sp. aff. D. russelli (Howe and Lea) .................. 43 dilatata BUcyL eT Eae e eee Te 56 AimorphasParaneudedeos ae aan este 24,F,B DisSOpOnvocy pris pachyconcha (Bold) н 21 dolichodelra КРИВЕ 1 оо ER HH Na 13,14,25,26,F,B Dominican Republic ................ 10,17,18,21-24,29,31,33,34,38, 40,42-50,52,54,57-69 Arroyo Molinillo Azua Basin у опао Меко SECO yani e ensure Gibao Valley Soc net da Arroyo PUR и eat rod A Ganada'Zalaya тла old Santiago-Puerto Plata road .. Rito Amina Er. rer MUT META TEES Rio Сапа s er 5-7,10-12,14-19,21-25,28,29,31-36, 38-42,45-60,62,63,65-70,Е Rao Отар dee 5-7,10-15,17-32,34-70,B Mao-Santiago Rodriguez road an una 47 RIO MARIE 6,11,14,15,17-26,28,29,31-40, 42-47,49,53,54,56-58,60-63,65,68-70,Е at Paso Bajito (= Машгу” loc. 1, loc. USGS 8527) ............ HERI CRECEN UE ақ E o E dd URS 54,58,69 between Paso Jiménez and Paso Cercado ................... 42 Bluth FOr Maury ТО Era BUS OMA ULSA Ss Bluff 3 of Maury (1917) ... 1 МИЉА (о поподне а париске LINES tu ROA VETA SIESTA ee usn Ала ВР E L bu c ct d Rio Yague del Norte eee Ampostuba Golpe E АИИ ИЫ. Arroyo Ор mn ansehe 5,12,14,15,17,20,22-24,28, 29,31-38,40-42,45-47,49,53,62,63,66-69,Е Валоавка rn Terra 5,6,14,35,36,48,69,F Top 5,6,11,12,14,17-19,23,24,31-35,37,42, 45,47,48,50,54,67,69,F Santiago Ems: 5,6,12,14-21,23-29,31,34,37-40,44-49, 52,55,62,64,68,69,Е Santiago de о: Caballeros a ис и An. 12,14 Comendador area Gordillerar@entraler. 8.2 ELO T SOU and re ie Enriquillo Basin ............ east of Palma Dulce - Las Quemadas, Valverde-Mo RIO OUY VOIA а ат NER NIE "ATOYO Жарчауап слет Le ы Бы Santiago, Universidad Católica Madre y Maestra .............. 42 Santiago—Las Matas road ............................................ 46 У ОБОРИО UA esae ene e UN IQ RII ОЕ 40 УЋИ (ој ој те ТР а сек Hee de TO QUT reese caters 9 Dominican Seaboard Oil Company ......................... 6,11,14,16 dominicana, Cytherella 12-14,18,F,B OWT didus er rennen 46,F,B Па ври CLIO а ae dominicanum, Cytheropteron (Cytheropteron) dorsotuberculata, TEONOCONCHO Set Lore tee ero NENNEN лата? 49 Loxoconcha (Loxocorniculum) .. Talea 12,49,F,B NOPAL Seren mern inne 49 dreikanter, FIDENOR ГП ОСОТ ОК НЕСИНЕ 19 PONTO VOPI E НС и ME MY CTETUR о 19 96 BULLETIN 329 dreikanter (АШ WLQCTOCV DVIS. регента оер eae vro wide У sues c 19 dreikanier (ex ge»); PONTOCUDTIS а алдаа: 1 5o 19,F,B Drooger and Kaasschieter (1958) .................. 3152353:56:5 765,67 POOL) PAP NCTAOCEI а ИА CR ic sec ide O ннн a peto 65,F,B TUG ASS CLO OO aM I RET NEN 20 AUOSNESTO ODE ан KE dips ne 355625 5,12,67,F,B Ee Lan an к. EI GL ыда нығыз 9,23,31,62,66 a ee O e a Ы река 64 AUS ЕТЕК ны ене ны Е оН 43 Fenovi horreis PUE КОЗА азайта б, бк ren des tese Sd dede 42 acanthoderma (Brady) ОИ АЕ ој к елеп ӘНІН evil e cer OS garretti (Howe and McGuirt, in Howe et al., 1935) ............ 42 ALCA AAA SD... nen SUN 5,13,14,42,F,B a 195 zu 42 42 ОРИОН РТ ACTOS MER прави а et e eek а (celta bod oat ee que da Edwards (1944) ..................... edwardsi, Propontocypris Di Veral ЕО ао яр qe 2a nenn elegantula, Macrocypria A ERE elongata, АЦЕ T PN IA АН 44,45 ППИ ОЈ CLS Sis сн ен рл EDI қанады Desc E 44 AU алы dH TTE PET 25 Proteoconcha? ...... бх. 45 на Cr MEM Poy oy CR er, bh. 44 ОКОЛО ООС AE er eter A E ват M du 52 Erythrocypris dreikanter (Coryell and Fields) ....................... 19 О ПОО ea СОЮП ОХО Brady ШО) а и а ама ыы. тыс» ОВО ОиВ гаа у) un. en ex gr. complexa (Brady, 1867) РУДА Ра ЊУ У ан тей жола е ИК ПР И C IRE ANA ps MEE I ER К КЛ 929 5,57,В gibbera Müller, 1894 58 56 57,F,B 57,B 58,F,B 58,B 58,F,B 58,F,B Я 58,Е EC аа 5 ?Eucytherura complexa (Brady) ........... M CUN NE, SEU ТИ CRUEL ONU, а си а lora dao 57. ЕУ Anthony Ceu eue A een 5,44 EVA VOLCOCO NCAA OMA S ОЕ ры ба 5,12,44 45, Е,В o КА У ал У ИАЕА И МИНА e NS NU 16 ORINSCAÄHNDOCYIRENE AN Sen 13,42,F,B MCU ICA. a рате A RU S 29 Favella puella Coryell and Fields, ПОВ вољни они иза теку s eene 41,42 rugipunctata (Ulrich and Bassler, 1904) ........................... 41 FGS [Florida Geological Survey, Tallahassee, FL, U.S.A.] ........... VADE N ИН Бе аР а 16521037. ISIS Eee en 48 fischeri, BONES ТЕН een vus lani РЕНЕА РАИ 49,50 ара ANA а ones nenn er iria 49,50 КОЮ ОНИ ОШ ИЕ о оета MLAB o TON AU ba pU MR 49 Би ан (190802220 ОООО РАШ СТРАНЕ ee OA Ane БАЕ ЛАЙК лик OT D с ® fithianae, Eucytherura ..... пати а ВИШЊЕ Nini Do. ТОСА USA A TO. SRE eed 9,36,41,67 Calhoun County, Tenmile Creek, below bridge on the Marianna— Clarksville road 47 Tortugas re E a eY T 68 АТОИ. Es x d senio Washington County 36 Ecofina Creek, Walsingham bridge ............................... 67 Florida Keys, Bahia Honda n ЈЕ (ој ЗНА к nee esce need ca MR ULA ВРЛИ НЕ eere A MEE TD TEMA Јотаа, ПРОХОСОНО СНУ ER doles sxe лур has ТЫУ ЕСТЕ Ее ҚАБЫҚ Қыта a 47 Loxoconcha (Loxoconcha) er E 47,F,B Horestemelo50 ANE. Е. euo nee Mn FOMMOSa (ДШ д B IORI ае fortificata (aff.), Paranesidea fragilis (aff.), Pseudocythere France, Aquitaine Basin Pran co MINO) ее ОЕА een т quls eee i теа ten cado ЈЕ о APR: DONA AAA abus gane 29 Friedrich Wilhelm University, Bonn, West Germany ............ 12 fuenmayorensis, Quadracythere ЈИПРОЗО Неапол Furrazola Bermüdez et al. (1978) [G1] GIODIEOPIT QE s EIA S mE TUM T RS а аи 9 Сре тате на ar. ei ӨЗІ Нн te HN 9 Galapagos аа ие EINEN N nee 51 DUTCH LM Ат а Pr те ил 11,33, F GansamoeyıhendeamBold, 958-2222... 1 12,13,29 Gangamocytheridea? plicata Bold, 1968 .... 2 ...... 11,15,29,F,B (ater Mendez жол Si) erm Аалы зки YT 36,38 garretti, (CINA d. cc N ORAE 42 «DGIO UTE CIS ER, СТЕ. 42 Gatun Formation ..... 12,34,39,41,58,66,68 gatunensis, Puriana SUN 41,42,F,B ОИ бр nennen sr а Тосуу ту = GIS TE ToS OT н r geisteri, Caribella Geological Institute, University of Milano, Italy ................... 18 патын 22222 202: 58 (IOS Agde OSD) eaten АТА о ceris кетет да бетер 41,47 GIRU [Geological Institute of the Rijksuniversiteit, Utrecht, Neth- erlands] ... 16,19,21-23,25,28,33,34,37,38,47,48,50,59,62,65 ENA AAA KOA ТП Ты а? 9 Globıgenmmatamplaperrüra Zonen 1... TM 8 Globigerina ciperoensis Zone 8 Globigerinatella [Ga.] ............. n и 9 Globigerinatella insueta Zone 8 ӨІОЛЕВШПОТАЕ КЫ КОЛЛ УЛ nee er ee 9 GLODVSCHIHOTAESIDKUMOLAVUS Zonen ee COR TROP OS 8 ОВО ТО а LG REINO Lor UL 222 7 9 Globorotalia margaritae Bolli and Bermúdez, 1965 ................. 7 GIODOFOIGII ACOSTACTISISUZONG а 8,45 б ОРО ЮАШ ANTENNEN Se le ПОПЕ Т Govora alia SNS Ны 222 77 8 GLODONOTANG Опа LONG Дабо 26 @IODONOTONAJONSETODUSIQ ZONE ae 26 Glöborotalia humel A ZONE ee 8 GIODOLOIQUIQ КА СТ аце е я D 8 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 97 Gioborotaliaslobata Zonen. АН А ERE 8 Globorotalia margaritae Zone 8 Globorotalia mayeri Zone .................. be 8 Globorotalia тепағай Zone .......................... da 8 Globorotalia miocenica Zone 8 Globorotaia opima ZONET een 8 Globorotalia peripheroronda Zone ......................... 8 Globorotalia robusta / Globigerinoides ruber Zone .... 8 obot otata tosa eniT AONE ete TE CURE 8 Globorotaliactruncatulinoides опей о. 8 Godfrey Woods On eed И ne СЕ 7 [CHACO Oase тен еле ete tee. o ER 9 GITOSSIDAU (0969) аа et evel мн tet use uuu desde EIUS PLE. 41 (ер орсенпоавите кта emule 9 Gibbon tcv ТС Ау Олан А 47 Güines Formation, Arabos Member 47 Gulf of Aqaba Gulf of Mexico Pus 12,13,17,19,21,22,33,37-40,46,50,54,56-58,60,61,64,68 south of South Pass, Exxon No. 2, OGS-1619 39 (то ко Вааай пре в tunen 61 Gurabo Formation! nioe a Eae: 5-7,10-15,17-25,27-70,F,B ита БОЛ (ШАЛ Seren ee 12 guraboense, Cytheropteron (Cytheropteron) .... 10 ...... 5,60,F,B H eight] (Getic) т МЕ ern 16 Н [samples of the Dominican Seaboard Oil Company] ................ DAN d S RAPE Casar 11,12,14,15,18,21–24,26,29,32, 37,39,42,46,47,58,63,65,68,69,F haidingeri, GHI ARES: VANA: Ин cues osse ES NEC NE 37 PLA UA A on leet ee amo ал PTT I HE 37 Hate: 6,7,10,12,37,42,45 central, west of Muscady, Rivière Féliciane ...................... 17 Ghanmoliscadiesantteline «Nescis een 45 ош аде“ SIC BE aa tr uo EUST UAE Cul-de-Sac borehole #12 TasiCahobastRiveba cott Morne Beguin section ... Ravine Dondieuque ..... улетео вешае иаа а NE Riyiere апас eli aet te IS e St. Marc #1 borehole .... St: Maro aroa nirai ы Най (Обо) лика а eese hamanensis, ?Phlyctocythere Namatimmlals)R@)therapteronse. seen. Were ee Напан делает RE cst Hanai, Ikeya, and Yajima (1980) Hana Pro elle tort RO EE ES Io do АНЯ Danae BAL BLOSS ео d olco CTI Hancock Museum, Newcastle-upon-Tyne, England, U. K. ........... МКМ e pie ah DP oce oe ioter 34-36,49 Hartmann 959) PRONUS eee Т а а a 50,51 Hartmann I 62 тестке ee EIE 28 Hartmann (1974) dues t CM: 49 Ја пати ОО) Re eee ERO CEDERE E ERN Со Hazel (19672) Hazel (19675) Hazel (19752) Hazel (1975b) Hazel (1977) Hazel (1983) Hazel, Mumma, and Huff (1980) Heima BOLDIN IBS mann nee es eruere speak Makower Rold 1985 аана Bis та 31,B Hemicyprideis Malz and Triebel, 1970 ........................ 12,14,25 asoradiomensisÍBo SHR erin an IE 25,F cubensis cubensis (Bold; 1946) en nennen 25,F SiepTensonaoBoldisR doy est se nn 25,F Hemicythere amygdala Stephenson Odd: ET a ELS шышы 33 попео ВОТ о GS Dime nee odia aee іа 35 confragosa аата, LOTA naeh 31 deformis (Reuss) 32 howei Puri, 1953a 35 Sapinatatsiepliensonl9ddgis «ccce E n LUI 7 Hemicythere? auricula Teeter О seen 33 'HemioythenaElolson ОШ ann AULAS 13,56 bradyi (Puri, 1960) cranekeyensisiBuns MO OOM ees ne arorau Key ensi еее и radiata Hornibrook, 1952 videns Ме anne ea sp. ay знетісуегига станекеуеп і рио А... erstere 56 Hermana reticulata Pari, 1954 nusse a i 37 Hermanites Puri, 1955 Ne Juncosa Butler, VIGS асна haidingeri (Reuss, 1850) hornibrooki (Puri, 1960) hutchisoni Bold, 1957b Alle ЛШ ОШ ӨШ ШОШ. Kennen РЕПО а Ва A IA ЖЕЙСИН ГЕ ШИНЫ У ОЕБС про OT сна S aff. thoracophora (Bold) Thansoceumcaubestemubo 75... sosesss eie e ИЕ. ы 37 tschoppi (Bold, 1946) Лоа HE EE II далы OL S а NN RE Henmanibes откон топе eost. stus. О ne 8 Hermanites tschoppi Zone Herrig (1977) .... Hey dari Вла а esos m Шелссеанайен қаса Ны CR ERE: Espanola mean... 17-21,25,27-29,31-33,35,36,39,40,42, 46,47,51,61,63,66,68-70 Оена eter fedet nee RER SEM УЛАН т. hispida (aff.), Paracytheridea hispida (cf.), Paracytheridea НОА Ны. 00 ІН ҢЫ е-е hondurasensis, ¡PIERO NIN ANS ТТТ QOIS BLE COGI NEIN Se horacecoryelli, Cytheropteron .. ОсОО ТОБ) 4552 eot Pe NE. оа eee hornibrooki, НДА ПЕН SIENTO ETC OO T С сч 37 Hermanites Howe (1951) 52 BIO ERO) einer ie RELIER IUe сүті 36 охуса воа Оо) ee 26,42,61,67 Howe and Law (1936) 13,14,27,36,43 Ное cial) COSS E Шы иды hee 11,41,42,46,47 howei, Сает rc ces LAU UEM d ne 28,F (уто CIR aa Hemicythere Microcythere 98 BULLETIN 329 howei, аР hie 12,66, F AT без ieu EATUR A ыы ыы 32,F EPE a aeae r ET ee Ms 35,F,B SECO 2A. EN RM MER EQ e E 67 howei (aff.), ITE dE cr петине ous nere S er HOME оо а is SER 31,B AVAL VA AT A nee T 67 howei, Totes (OOO) iie UE боја ка усне O 12,41 ОБ ООА) жены CE. nennen oem на 12 ШИШЕ (ШӨБІ) ern. 37,41,48,49,54 Шише аиыр (10964)... dn a Dre utis 12,56 ШОШ ЛП cla Ao en ee ылы аллаа us 39 ООО ТЕ ЕЎ кеј ee лан алаты 37 SYNC DU A ЛКК Ген 37 HVH [H. V. Howe collections, Louisiana State University, Baton Rouge, LA, U.S.A] ...... 222. 16,17-50,52-61,62-70 LINDO Here” (Home пиа.) алаа 39 AAA nennen SR LO 38 DEVE TIME BEE OUS поводи DURS ee T e балет іі 54 ШОКЕ dedos пада зе элу ло услуг 49 “О A te ces YAA DAYS AAA A NE з зы legare 60 ЕТО ene te ET E rie TS 67 IB OR ШАНС CIT o] nennen er cune rry 61 ИШК а ОШО ыы А t dedic en и Mois s Ire pad ае 9 Weiters (DURO le RN 54 ТУА aud-Gunther ТОА). 12:09556 Таа Ое (976) о 222222012221 12,47-51 Italy, Type Langhian, Brice della Croce section .................... 18 Jackson BIN -Bormation «eth EUN IDEE 36 Ја pue yes Вова о e т tius RO ӘКЕ ДЕДА; 38 Јан 989). ли 10,19,22,25,29,33,34,38,48,50,59,62 Па a наа 7,10,18,20–22,27,29,34–40,42, 44,46,51,54,58-61,69,70 o A Ao 7,9,10,43 тд OE O crore ceret УРАНА eU rail тч 20,21 Runaway Bay tler 65 San San Bay section ...... TAG JAPO CURAN SEO MACAU sca ОНЫҢ asst 54 Jealousy Formation ........ us Jan Formation ula а а IA johnsoni, Bradleya Cytherura POE OII A ТТТ ТТС ae 55 ЈОВО) АРЕ па ИН О У E tcs isto civico see СЕ. Joy and Clark (1977) исаголкоглацошаела сала: 19,22,25,33,34,48,50,59,62 JüUbosoc) thereis Pity VOSA. iil eee 12215736 pannosa (Brady; 1560) caia e ои 36,37,F,B vicksburgensis (Howe and Law, 1936) ....................... 36,37,F dion мысы NT менен ты e 5,6,30 JOSE МИн CEI Eisen сат 5,11,15,30,Е,В Kansarına@oryell апа Fields, 19537 ла 12,50,58,39 dbyssico la Muller. TOIA) е Sate oo. с EAD Ines queue а 59 Sp all: Ko abyssicola (WINNER). 22225» енеге an ern 59 bradyi Puri, 1960 56 depressa Bold, 1908 una. ae gu T 56,59, F,B део Coryell and Fields, 1937... Орска 58,F,B IIS Жылма N en NE Kangarina? abyssicola (Müller) 59 LAS serere ires vestis Sse SORTED Oe A лета 59 * Kangarina" sp. aff. “K.” abyssicola (Müller, 1894) .................... noch. Жамал sconti DEINER genas 9 svt SOB karlana, Cylhaetelld «etus. на лактар een 11,46,F ИЛ ОЛЛО Л En ыл аа Leu albeit a an sae orl ne 47 RV OLOGPINCT CL 2C, те NE eas os de EORUM sota aca 47 karlana var. choctwatcheensis, Cytheretta ............................ 47 Fer aliod) ou о пина на ината tete 49 Keil 01954)! oer. ЖОЛЫНА ат erkennen 34,37,56 КӨШ (ШӘ уд ans a. алалы ын sero тынан RR 32 Kemi ОВ це... Ж Us Bm 52 kieji, Bythocypris 21 kingmai, CAC СУК КОККО ОЛА желден DA ағыны rta ds 99 N СД 59,B Kontrovitz (1976) ..... Kontrovitz (1978) ..... Kornicker (1963) ... d I&ozatyidl05 Nenner an 19,22,25,33,34,38,48,50,59,62 Ктиће Brady, Crosskey, and Robertson, 1874 ...................... 26) dohenedemaBold 194602222222 13,14,25,26,F,B elongata:Boldal900 Auer ТЕ сан ea 25 lamb BA У OUR ee Nt wes 13,14,25,B топове ВО I de een N 14 prolixa BO абба о н 14,25,Е trinidadensis Bold, 1958 .... ie de б: абадаи BOLTE ае Vicksbürgensis Howe апа Law, 1936 ec ced 27 Krutak (1971) Krutak (19822) Krutak (1982b) Krutak (1982c) KrutaksandsRickles, (1979): Stk, 188 A aa 50 Vas hella апа. krutaki (cf.), Puriana Kusnetzov et al. (1977) L [length] (defined) La Boca Formation ... La Cruz Formation TE @ UZ Man os sas vi er ree ee t s Ide VV OGNI ОО Л etse as eo ductor co c DON тҮ laevieula=Balldiasa, талатын арланы бете laevimarginata, Palmoconcha X Inevissumaw ааа Баја Бе С ЕН Inte о dtt bee serien t Wakes OMS Ра Meine ОКНЕ Ен t 40000 lapidiscola, ¡EOXOCONCN RAR ts Een else Loc АА obs 50 IE OXOGOTGHO E E vere E ЛОК P TEC CO УЛО 50 Loxoconcha (Touroconcha) .... 12; seca AS 50,51,F,B ПОНОВО ОВЕ a УГА к 50,51 lapidiscola (Caribbean form), Loxoconcha (Touroconcha) ...... 51 lapidiscola (Central American form), Loxoconcha (Touroconcha) .. P REOR UT TEE DRE NET SU ARN 51 lapidiscola (Galapagos form), Loxoconcha (Touroconcha) ...... 51 Las Cahobas Formation ...................... 10,12,15,17,25,28,33,45 Teas Salinas OD о боја «o ИН ee ec ot Ores tee ero а re 7,10,29 CAME СОСО a ene. ола ee ПОО О Ye ITA ОТЕ lenticuloides, Loxoconcha ICOMENSISWGY INCL ODUCTON airy ui een ea DOMINICAN REPUBLIC NEOGENE. 7: BOLD 99 leonensis(aft&)GyIheropterome: зоо бер ka Teei RI o UN Leptocythere yoni Puri, 1960 ............ Sneptoopthere-syoniBurD)mu umo CIS MR UE ÁN TeRoysand)Bevinsonqi(974) АВНЕ, ТА БАШ (ЧОЛ) КАК КАНА КИРЕ RIS ee ear ere rare lienenklausi, Loxoconcha JOE) e E " пас Capelans Romeo тет RO RE IDEE llinasiakterygocythekeisene ee Lobosocytheropteron Ishizaki and Gunther, 1971 .................. 61 perlaensis Ishizaki and Gunther, 1974 ............................. 61 longisetosa, BOOT. NEN оса тыны ЫРЛЫ TUNE 22,F,B NCONES СИ NE risa АС e ERE EU ТАҒЫ 22 longispina, Loxoconcha Louisiana State University, Baton Rouge, LA, U.S.A. ........... 12 Louisiana, BatoripRolleucetheecenee eec eier AR LS 5 GatahoulasPanisht; прав тее. ранио танана ње ШЫН 43 Боек COASTAILG OUP НАН ыж See Sore А 7 TowlandsRormalione er sessed ern 35 THONO CONCH ават, Оби ken 47,48,49 апшеахВо а 946 coe rete ete A Қа 48,49 única Bold var ПО О ооо ЛЕШЕ A СЕ 48 antille BOI Хата DION gala кенен tects, e 48 СПОТОВИ ВОЈО 9469 2.2255 ee 48 anulla- Воја var LCMV нешеге ыннаны na EIS 48 antilledxBold; NAT PUGO orereta ee ET 48 ОПИСА ИО BO AIDA WX ee 50 antillea var. Bold, 1971a 48 QnülieatBold normale ТОВАР а en 48 panes ehn Bod ANG AOR. Е ARE EIER, 48 aff. banesensis Bold 0 ӨП cubensis Bo ота dorsotuberculata (Brady, 1866) .... d fischeri Brady воо) oco cuero ea Jorda ВОЧ об HIT Rena RN lapidiscola Hartmann, 1959 lenticuloides Swain and Gilby, 1974 2222 nee 49 lienenklausi. Bold Тобчи ЕНИ 6 ПОПОВА аго а АИИ. mamma stanche II нона ARE maena Tener IOTI не eem matagordensis Swain, 1955 теварота magna Hartmann 19745222222... 0 49 occidentale Bate, Whittaker, and Mayes, 1981 .................. 49 ОВОС СВОЮ а purisubrhomboidea Edwards, 1944 22 FAO TABOADA ee мағанада ТА IN CAN те Ты МАР ТАРА bo) Ca ALO OD SE spinoalata Bold, 1946 ................ RE ПАО 47,49 Spaatbulispinoalai Bold 94 бан син Aa MOT 47 suboculocrista Lester, 1975: nn... er wc 50 wagneri Bold 960 МАСА ВАВА ПРВО РАНО ЕАН RTT ET 48 SP С ARE ER ea ee а 49 TEOXOCONCHA (EOXOCONGNA)Satss: LISO Oia A a ee 12,47 ПОТАЛАВО оов аен. ВАЕ е quei 47,F,B runa Bold VITO S aso TOURS 48,F spinoalat Вота 9469 е TENNE 47,F,B Loxoconcha (Loxocorniculum) Benson and Coleman, 1963 .......... IN Leanna Е 12,13,48 antllea Bold ОО nee een 50,F dorsotuberculata (Brady, 1866) .................. Jet 12,49,F,B fischeri (Brady; 1869) IA 12,49,F,B IAN AN A A ee 50,F свота Kantak AI Deere "АЕ. 49,F,B Loxoconcha (Palmoconcha) Swain and Gilby, 1974 .............. 48 DanesensisiB ol А6 раза 1 пи И 13,14,48,F,B орана ВВЕ ien iecur Eds ЕА ны ыйы 48 Loxoconcha (Touroconcha) Ishizaki and Gunther, 1976 .... 50,51 lapidiscolasblautn dnm? ts qeu 50,51,F,B СайЫ Ко) Т 224s а eh tees 51 Central: AMERICANO Me 31 Galapagos tom a TAS M 31 mosquera Bate, Whittaker, and Mayes, 1981 51 Loxo6oncharhomboidea group... een 49 Loxoconcha (Loxocorniculum) lienenklausi Zone .................... 8 ?Loxoconcha AER banesen i Bole о rre cec TE ет 48 lapidiscola Hartmann, 1959 megapora Benson and Maddocks, 1964 49 Loxocorniculum Benson and Coleman, 1963 .................. 47-50 КОЛЕН ЛАШУ ЧӨН S EO кала en АДЫ tFico!natumKrutak;o9 T EEE Lubimova and Sánchez-Arango (1974) A. ан т по ылу nds 19,23,25,35,36,48-50,56,62 hA CO 6 GSA) NE ea A На E macertus, Neocaudites Machain-Castillo (1982) Macrocypria elegantula Whatley and Downing, 1983 ............ 22 Maeroeyprina Вера 960... а C EY e MA maculata (Brady) ................. sp. aff. M. maculata (Brady) .. sen SO ee Macrocypris Brady, 1868 decora (Brady) aff. Macrocypris dreikanter Coryell and Fields, 1937 .......... 19 ?Macrocypris DathyalensisuEIUlnBsu estis eos ia ны 21 sp.2 A 21 Macropuncialas UU Та 33,F ДЕНТ НАН ТТК 22 maculata (a), Macrosyprina 5-тен СТН Са 22 Madame Joie НОПО a bob осер nn НИ 6,63 Maddocks (1969) Maddocks (1974) ME Reel ааа а ы madremaestrae, Echinocythereis ............ Ба 5,13,14,42,Е,В THOSHAMBSONSDUOUOIT К енене на іі 49 magniventra, Pellucistoma пао Ра (ай), PelucistoMma e eee rentre on ЖО 66,F INTO а а (OSB) ке на а ie ee Malz and Тпеђе! (1970) S Avail alia To а ОЕ cete cea re ce a RUE ПАРИ TS RE mammidentata, Trachyleberidea .. MaanehitoheabBORHTIa Ore qot НЫЛ анозаи атаа Manaelstatn (19558) ЫЗА ee ba dte e EI RE А Мапата бО) ла Manzanilla Formation ........................ San Jose calcareous silt member ды ше ОВОМ eS о О ва ОО alero аео. Mao Formation .......... МАКО ВИА OI d aca Иан ЕИ н margaritae, Globorotalia 100 BULLETIN 329 margaritea, а AR аны ЫН Арын vamos un 68 РОТОВОГО dO EU, SERO du se КУ Л ЛГ, М oae 68 ynarsariied (аву Xestoleberis өзенге ap estote tt 68 IMaseleror ni а nen oett c BER CREE bet 7 DADUPOUACHSIS «Loxoconchass. di Ut cese cese 49 МЕ Пе озна оо 5 cereo Male 10 MAISON RR БИРАН РУАН МЕТИ eet eoe et ic t a pb 6,29 DEUS (93h) ЕО ЕА 12) Mekenzi and Swai (1967)... oo od ota coded 56 DICH САШО 33. л etes cvi Mo EIN 34,F,B medialis Єр. at). Gaudites ic aa пина рели t e SOR 34 PRC CAPOLDS! BoXOCORCIV ue Sd не A ritu eur 49 ЙО РОЛ MOZNE, BiOXOCOHGH ra ы анық legas td 49 Mesa perdes voce IW otioso tus a 64 MECO see а тИ 17,27-29,31,35,36,43,49-51,58 Барша: Mandingo: о И ee op Saec 50 МОО Christian. a oed ime ht neenon я 3 MIS Gand e Mn c cH mI i-i 14,29 логосу пеге Muller 1894 se N. NE dnm we 13,67 homer (РИЙ. £994). m... OT nen ле бе DE 67,F,B Ob ONE a E ECL. ЛЕНА E ОРЕ. 67 ?Microcythere A А A Е 67 BIS t дари а ЕТЕК лалы ЈЕ 67 ТОХИО РЕШУ МАШЕ LEIA AS NER ARE 70 Bl ans. самала hes anten i 133553 67,70,F,B ANOTA a ЫЛЕ» нс сары ТЫ re ROO РОКА 70 ivit e smod d me UT MEC 7,10,12,14,24,54,55 ПАИ ООСО содырды o CER QR MER EL HA A 48 minuta, UU NR E улс. ES 38,F,B UU ETUR О оа аон m sed е 38 miocenica, Pterygocythereis ........... ie a 40 ПАРИ Sie НОСНОЈ ИВ OM ОКПО oe ЕДИ 63 Mississippi, lo c einher 36 West Dante Реа туе но Не 2 Chickasawhay River, Shell Bluff 24 Monoceratina umbonata (Williamson) group ....................... 64 ЕООД UE tga E e UU Np Ete RUTRUM (NS 64 ossa ЛЕ ОООО ОО СК ЛЕККЕ ы DER 65 MONOC OSCDTIDUO OPI Ое Я da ghi 5,13,64,B Montpelier Group КОРЕЕ ООО УУ илити UU ARTES IVO TEE 39,F ОКА aen a ee ee ee 12,13 lH OA ICE TS 14 БЕРИ DJ: ПОЈАВЕ ОПИСЕ а e ir eor 7.10.53 mosquera, ОДА coté) PINARES sem mtt ctos en 51 М ОШ Г ОШОЛ шу уу зы шуы mucronata, Brachycythere Müller (1894) .......... 12,13,17,19,21,42,46,54,56-59,62,65,67,70 DA ISCVOH BO ШУ ЛД aa ЈА nn bermudezi Bold, 1966d па И BO dO Oel. Senne O DENE IE A Bere рентна ER 5,11,15,30,F,B ИРА У SUG te Обр Чеш. 5,11.13.13:30,E,B a 30 Uoc uc cM Wee Hu C deci ra rH NEE. ee. 30 РЛ” СЕЕ JILE O EEE E EE OS ее ТА O 30 EAA ER MITTEN Header 45 “N. gen., n. sp.” га > ш решио 50. att Leprocythere оро iNdey and Соо TO) en A ад ne er МАРИСА KOT seen: Navecythere delicata Coryell and Fields, 1937 DOPING Cll Omer ed RT C A Navy island Formationen nen en EROE E AE T ITE sa Neocaudites Puri, 1954 .............. macertus (Stephenson, 1944) ... nevianii (Edwards, 1944) ......... er СОА есі оо 222200000. SUDIMpressus (Edwards, ТОА) тз sp. is пеоји танкер ЛЕЛЕР atado петина EE nena емин Neonesidealongiselosa (Brady). ive e E Neville: CLOW OWE colo Vestes ee Neva (ODS) Е na en oui eaput me unice nevianii, CINE s vise secte tee es cst eium calle EA INeocQuditest eere qe. MR LARES Eoo oss INT Cama PUA, тел ТЕ а: Miskito Keys Nipe Formation nipeensis, CAUCES АУЕ nee DR Cytheropteron NMB [Naturhistorisches Museum Basel, Basel, Switzerland] ........ LIU dau c e 5,6,11,13,14,16,17-50,52-70,F NMCM [Ministerio de Mineria, Combustibles y Metalurgia, Ar- chivo Micropaleontolögico, Habana, Cuba] ............... 16,19 Normania dorsotuberculata Brady, 1866 .............................. 49 NOTA MEC ne een a А 35 CAME SOUCI a Na 7,9 RACHA ea Nod 56 ОНА ОЦИ АКРЕ ы сулары ciae ee 9 úmber River near Lumberton 22.70.0007. 31 Magnolia, Natural Well: о. adidas 23,62 Listen) Бе О ЛИТ 2-2 66 ГОЗ SERUM МУ ЕГИ ns ii ... 45 NOV FLOR ОИ (BUE) ucro ee 46 oblongata, Bamia P КУЛ ЛЛ КК boda t bonito. sert Bamdoppilata лет occidentale, Loxoconcha Occultocythereis Howe, 1951 .... angusta Bold, 1963b oculocrista, Loxoconcha Genio VIG 2222222. Оет (068) ао о Ы оноон У (ІВБОЦФТАЖЕТҒАН 55-050 бы ERO A 11 өрешпоменсл алше Е Oe isis 7s BI SD S 16 ООП И Е 12,14,35 bermudae (Brady) 35 bradyi Bold, 1963a ................ ERN NR E О, 35 веат Bradys O) un узду удэ кузу ETT 14,35,F,B vaughani (Ulrich and Bassler, 1904) .............. а 35,Е,В Оаа Каа. diss 5,7,9-12,15,31,32,F,B eres «ОШ ЕЕЕ nn near 9 pachyconcha, БУОРТУ MEMS E e DORUM etus e rots o aen 21 DISOPONLOGY рН DE erri ere rS e DRM no 21 DOMINICAN REPUBLIC NEOGENE. 7: BOLD 101 enia glo GP DS ee eal as ire знамо ARE AN 21,F,B Расо Ocean- Clipperton Iland nenne coe eee 40 Palmoconcha Swain and Gilby, 1974 .............................. 47,48 laevimarginata Swain and Gilby, 1974 ............................. 48 minima Ishizaki and Gunther, 1976 ................................ 48 palton, C iheto pieron A кеннен ы ee С 61 Cytheropteron (Lobosocytheropteron) .......... 1055 E 13,61,B Banamas ar. 12,28,34-36,43,48,49,57,61,65,66,68,69 QGativag Comi E LER ee 34,39,41,58,66 Colón Harbor 19,22,34,35,36,49,50,69 GolónjdGCocorSolozborehole(9. nn а Е 17 panan enas Serro Vhen Ura лт 55 pandora Ey there eccesso е EN ee 17. Pandoru att) Gptherellqi оа 17,Е pannosa, (CEIC Е age eee cep ND T EEUU A 36 ETC НА ЕТТІ acco ата ни NE LUE 36 WU SOSOCV телет па erlebe sagas Sixes 36,37,F,B Paracyprideis vicksburgensis (Howe and Law) ...................... 27 TRAV GGY DHISESATS. ШӨ О Оди сн јој А ба бутун. cee ИА see SORA АВА SPB Ana “к SD: Жарты. Juge. ы S E Гата о КОМА епа ӘЙЕ нын SER ТА ры С e E ITE 1245.55 67,B Paracytheretta dommmcana ВОЛИ об а АЕ he karlana (Howe and Pyeatt) .. Hz 4% Paracytheridea: Muller, 180477000000 a altila Edwards, 1944 62,F,B а. us бс P 5,62,F,B hispidasBold, 946; an nn ET RE MUN 62 attuspidaiBolde. 215565 eu. beu Сат ood 62 spram И РО Bold о46 Де TE 62,63,F вркогератотлайавоан оон н латы SN 63 tschoppi Bold, 1946 ies SDRA о Да e ИЯ oh c ceu I CL ML T GERN Paradoxostoma Sars, 1866 artum Bold, 1966c SD ON ada 47 wt Spa? ncc due (eim dE S ca ү сс сга © SDR T I v ола EE C I 66,F IPSE SIACSBOI, ОВЕ етен eren EUR V ОИЕ 26 UU О РАТЕ и TE 022221 2s 5,13,26,27,F,B WiamphodessBold; 19666. А МАН S 27 vermummt Bold ОАО) а-а ИЕТ 26,27 Өр РЕ оу екн daa bas кок NORTE a RERO 26 Rope E c PK Re ДАС КҮ, 26 Parakrithella nanai anta nns 9 2. ината crunt EEE hanan ево о йд МИ ceteris ОО Sa petersenislieetems93804. C UL ee SDN Pom ME E siis bnc p bh en Ратапе час Мао Ко 10069: nee ОЛИПЕОИВОКІЯШОД 6) еса ИЙ dimorpha Bord ВВ) cesis rev E te sp. aff. P. fortificata (Brady) Paria-Trinidad-Orinoco shelf 13,65,67,68 Paria-Trinidad-Orinoco shelf expedition .........................-.-. 56 Partial Range Zone (defined) ............................................. 9 Pascagoula Formation .............................а....222.. 24 pascagoulaensis, ПОТ ОИСИ 24 олун ee nern о 7,9,10,12,14,24,F,B WASCAZOUIGENSIS\ (Alls) CPIS catas ee 24 Paso RCA (оу во Козака а det P EI eR 23,25,28,37,47,48,50 Пра отапа а о ага) а S TERCER ин 12 Реасе Dan A ee 7 вашу тетовавов 962 пси A Е 63 ООРУТ Е onore. а. 0-4. 63 пеој штап Joy- ama Clark 1977 Ее 63 phryne Bonaduce, Ciampo, and Masoli, 1975 ................... 63 роша Colalongo:andPasini, 1980 204 ze ee NE BARE SI ODE cre сна а ы educ УО MA US сл drove e) Sela е pubem didis er STB ЖУ ыты Mr Pellucistoma Coryell and Fields, 1937 howei Coryell and беја 198752222200 2 magniventra Edwards, 1944 ............................... aff. Pellucistoma magniventra Edwards, 1944 sp. aff. P. magniventra Edwards, 1944 ............. Tumida ДОЗА ын нсесе Лан А а А ER суо СИИ О АСРИ ean cal ed етан ica Sums СИЕ EON e ОРЕ er 52 Pellucistoma? spurium Bold? ........ : WPellucistoma рит Bold, 19636... И Perissocytheridea Stephenson, 1938 ....................... 12,13,28,29 alta BoA e eee ық са a 28,F cahobensis Bold, 1981 ... Din еее 12,14,24,28,29,Е, compressa Bold 19756... Сек атала 28 punua BI Cc au ee Dar 29,B sp. B ба Sp E RN Қосады самалы тыла E TERME perlaensis, Lobosocytheropteron peterseni, БА КЕДЕП хы сед Ad oaks A IE И UR Pseudopsammocythere n Phlyctoeytheneikae], өре а c NS 20:33 санаа ааай, 19/90 ann Сека e 32 ӨМИД АЙК Ө SE are ee 1 a 5,52,F,B ове тоа Kojal Т aei В 52 Japonica Ishizaki 98.2 dete ame tar er 54 rectae [зд ER 120805 5,52,53,F,B A Se ee 12 Е 5,52,53,54,F,B tumida (ел) њего се се eA ИП О 54 lata ӘН е кебй. с 53,B ОИЕ О LIT 53,54,F, ?Phlyctocythere hamanensis Ikeya and Hanai, 1982 .............. 54 Dhrune,.Bedieytheres css iia ла. 63 plicata, Gangamocytheridea? ........... 11,15,29,F,B Plusquellec and Sandberg (1969) ...... 12,13,44,45 A ЫС 7,33,36,37 OOP ela KORMVCUGS ое а ER INEST 7 Pokorny (OS) сес AA E СТЕНО АЙА И а dua 33 Тоо ће (GOGO) we aser terra sense ee А, 2:32313:31 Pokornyella "DOO GT DOLOR прста een 7 saginata (Stephenson) sensu Poag, 1974 ............................. 7 Pokornyella “saginata” / Pokornyella laresensis Taxon Range Zone ОВО (КӨЗ tenet lali es eris Қы eet a gj Pokornyella laresensis Zone . . . ..F Pokornyella poagi / Pokornyella laresensis Zone ..................... 8 polita, «BEIC LONG и EU C ма О И 2 - ӨГ О саа eae uq polugari, Loxoconcha (Palmoconcha) 102 BULLETIN 329 ECE OE СКОТ A рс ЫНАН 7,19,32 О UO TEES КА IPM аЙ Бы И LCD 41,42 ponceana, Cytheretta .................. Puerto Rico . 7,10,19,23,33,35,36,46 Pontocypris Sars; E866... eere Баја 9 dreikanter (Coryell and Fields) ROUGE қалта AL AE. че 9 ex gr. dreikanter (Coryell and Fields, 1937) .... 1... 19,F,B Bones CEMENT QUALI. se NE ИДЫ 19,32,33 ЛЕНТА ЕПС tocan eio tei ТОК I. 19,F,B Sanos Dala ee a m DN ТА ы ымын OCIA З) ле ite Ig Odi eee 47 pulchra (aff.), Cytherella oe S posidenticuluma, Gythlterella,..... ieu AR A eee 12,15,18,F ти Perisocytherided о н ОЛКУ 29,B Pozen Formation, Нано сау. 094. tio feos. uo a 25 IDmuoeytlerueaBoldix963bset ЖА, ee e ee TEENS 29 ERICO DURA РЕ ERE ee a en 9 Sl A на ESI а кылы ыы 29,F,B DaEOrDOInacelomaekosq Zones. A Poss mods FINE 8 punctata, pretiosa, NCSTOICD CISC Tia EOM Y ақсы Ronde e Өн ис 68,B UOC IED NEC знерк анна ре Д.а ИМЕЕТ 38 ?Xestoleberis Dre dera AAI UU A rare ыы = 38 Punta Gavilán Formation PRI [Paleontological Research Institution, Ithaca, NY, U.S.A.] .... Puri (1952a) ss pd ob a be coi НЕЕ an LEER Mt OUR 11 Puri (1952b) Procpiieres: Skogsherg,,.| 928: otis were Aena dioe es 32 Puri (1953a) оры ee РЫ c ee 32 Puri (1953b) ОООО ЛУСУ defomnseioneneh een F Puri (1954) Procythereis? Puri (1955)... det oS REUS 18530). nen emn 11,32,F Puri (1957)... ПОПРАВОК SO лн ы stp н Оне ken 32,F Puri (1960) ... Procythereis? deformis Taxon Range Zone ........................... 11 Puri (1963) ЛОРИ ПОЕ UOTIS ОЩЕ, a Tr REC SOME 8 Puri (1964) producta, Puri (1974) jas GIVE et be LEE RES i. ee 36 Јене це НИЕ (LOS ee 12,33,41,55,56 INN a APD RI NEUERER RN. 9. kic 36,F,B Emand Vainetini 9 69) Oe TUE е 35,41 AIO NATAT IET NA QOO TOTO TORRE 14,25,F Puriana Coryell and Fields in Рип, 1953b ......... 12-14,38,41,42 Propontocypris Sylvester-Bradley, 1947 ............................... 19 HORARIO Tace. EEE 41 ОООО) ann. cre eo, Dad 20 gatunensis (Coryell and Fields, 1937) ......... Би 41,42,F,B varaderoensis Lubimova and Sánchez-Arango, 1974 ................ KUtakuKontioyitz 197658. A MER ei ain 15.22. Пор ОВ GSP OTTONIS ОТО IS HERES Сене. тет BD pe ic EEE MEDINA пазе БИН 19 ОВО ОСОРЕ ee А ҚЫТ Propontocypris? varaderoensis Lubimova puella (Coryell and Fields, 1937) and Sanchez AMARO LOTA nn ИИМ 19 sp. aff. P. puella (Coryell and Fields, 1937) ................... 41,42 Proteoconcha Plusquellec and Sandberg, 1969 ......... 12,13,44,45 HUSOS BOALO Saad НОГ 1 5k. X. 42,F,B Proteoconcha? rugipunctata (Ulrich and Bassler, 1904) ....................... 41,42 ааа (BO. a eds eorr ee биле 45 sp. aff. P. rugipunctata (Ulrich and Bassler, 1904) .............. 41 BIO Bol). iai aes pees АС e pio trt 6: дус” 45 rugipunctata gatunensis (Coryell and Fields, 1937) ........ 41,42 РУБ N E иат GEEST 5,12,44,45,F,B ҚО Ul OSGIB OLGA GO Ste. E E A ae 42,F Protoargilloecia angulata Deltel, ВЕ RN Me nen 41,42,F tomes acumiiniee Of Ducasse, 1983 .....u......0. 0.0 20 Eurona ЛИ НЮ ЕШ SOUND oror eaaa АДЫ OS 41 Protocytheretta ПОРТОА congestocostata Bold, би 38 choctawatcheensis (Howe and Taylor) ... 47 PULISUDINOMDOIACAMLONOCONC/ QS ISDEM 49 karlana (Howe and Pyeatt) .................- өн Е э USC (Olen olf foie E ооа AS. 46 VEAS LUNES ДИ ЫП қты С 9 ИП Mosque Jail iti е а e c S e e SER 42,F,B Psammocythere vicksburgensis (Howe and Law) ................... 27] TA LAR Bold, 19094. 2.2.0... Quadracythere Hornibrook, 1952 .............................. 13135. droogeri Bold, 1965a ............ (ЕНЕН (ВОЈА ТО 63D) и ее ооо о О ER 35 Pseudocythere aff. fragilis Sars ... OARS ULE THRU ODE ee па Ead UE RN UH 36 AAA PS ысы e eai ee esie ктын recreo An AAA УУ Oke m c cu CL 11,36, F Pseudopsammocythere Carbonnel, 1966 fenmayorensis Rodiiguez, 10002222 2500000 85 ex gr. vicksburgensis (Howe and Law, 1936) ... 2 ...... 27,F,B HOWE о LOSS «m ee Suet 35,F,B AS A O) d n te ОАТ 28 КОИС (Brady BGE) ae Зил. 36,F,B oo N аа der 27 VICKSDURgENSISE(LIOWEand LAW). rn ЕТИ 36 PILI OD OC VIE CIS Blake, ПОВЗ планета наиве m 13,40 (Пе О LAA HU MOT E ны ки н RT О cS 58,Е,В del carat (Coryell and: Fields) sat ran m 2 39 | DORGU ASORSISEBestepelo б esten Nr cetera on 40 Vadit Нета ЛЕН i ое. ИИ ШАР Кн та. 5TH 5,40,B ААА Уе) теу ЧК miocene БОМ, 19.016 A on sS 40 confragosa (Edwards, 1944) ................... ponta Bold. TIO NAAA Бы 40,41,F,B confragosa (Edwards) form A ?Pterygocythereis hondurasensis Teeter, 1975 ....................... 40 comragosa torm A of Boldido75b web re 4 10 puella, exige cOn agna Edwards)... Sees ae 31,32 Nal ааа ынан RE RER 41,42 OVAS DI elite 4550,2 5,7,9-12,15,31,32,F,B LUE wen ee IR 41 SORIA vive чс хк R T МИКАН Уе ү 32 _—2.. DOMINICAN REPUBLIC NEOGENE. 7: BOLD 103 АШИНА МеВ е оа Е M ао е Radimella confragosa Partial Range Zone ... Radimella confragosa Zone ...................... MSS IRadLmellasovatassubzone 1.2222 2. Pede Н Radimella ovata Taxon Range Zone .................................. 7,9 Radimella ovata Zone RAMIS s ous e a E ДАКЕ ¡Ramirez Саза (88) fee occa Н etn 12, Tamosdudmbocythene c Messner en a po N 42 TECLA PLONE 5 es 12. 5,52,53,F,B rectangularis, GRUESSE ee Soda 34,F,B река ни Ка od. tes ЈЕ uet. ИНК ata RE 34 reticulata, HOD е оа ПИ а 37 LAA US sense Е REPE 37 Reisa d oso oa MUT ADU SNNT 141532533537. reversa, Cytheridea (Haplocytheridea) .................................. 25 BEVEN (А 221 aaa rhamphodes, Ратактиће TISDy ISX CSTOLCD CL УН eoo AE т тіле ӨРУ ОХКЕТОеренкете тте ORB ae Rio Banano Homma one мет Т ee 7,10,50 Riviere Grise EOD AB OD н И 710 КОР (100). reconoce с TE ИУ 35,39,41 IN ЫЫ СРИ 22,57,58,60,61,64 Rothwell’sseollecton Е cens NN ERRORS 54 ПРЕ (MSY oP) c ee ОО 13,14 rugipunctata, Cythere Cythereis Ена Л Т E rugipunctata (аћ.), Puriana Tugiputctatagatunensts, РИШайа e eere eerte ETUR de 41,42 rugipunctata var. gatunensis, Cythereis 22.22.2222 2. 41 rugosa, ОХОО йил кене do eae ie BC MD 50 JToxoconcha (РОХОВО НЕОНА) €t qe xol ee 50,F runa, DOROG ONTA E CERE RS OE петине FLUE Qa ve we cs 11,48,49 Тоо USONOCONGHA) песка сена R еа ЫШ Viam 48,F РКО BIACHVGVINONE eee o 43 russelli (aff.), Brachycythere Digmocythere өзе (Св Brach yhen uin енен N НЕ 43 OAE A RINDA EAS EEE элк 11,34,F saginata, еселе ee e EOS 7 LAY AVUI AR NAAA die c Rome d ee РИИ 7 iSaematoaythere-Adtensuo 222222222 222 0 47,48 Sada Homibrook, 19825220220 EUROS 59 Saida? kingmai (Bold, 1946) .............................. они 59,B Sel CDPOSAL Сурае еа Е 10 SanSebastian ношпанов С ТКТ 36 Sanchez Arango Шолан. 23,25,28,32,33,36,47,48 Sahdberg:(1904).. ori RA ee 24 Sandber en BUMIOCyIHeNden ner 2756. 29,F,B Sane neti (10979) een ЕС 26,35 SUMA LO ROTMAN я 10,29 Забо) . 12,13,17,19-21,47,54,56,59,65,67 SENSO) e crc M EHE rede E 22 Sars (1925) ....... 21,24,47 М en ааа IIS ee 70 64 SALSA OD Se E I T I 67 Saunders, John 5,6,30 Saunders, Jung, and Biju-Duval (1986) ............. 6,10,11,14,30,F saundersi, MWnseyellqs. ous eee canarios de 5,11,13,15,30,F,B Selerochzlus:Sars ls Or Тен USE 65 GOM OCUS: NOBIA, ir er 65 Жырына BER MN Un HER oie 19 22 65,F,B Sconsiatlaevigata zone ob Maury «ти. 15 SCOUAERN CO CIU AMES эз cba Беки ОЗОН! Sellarasu (ай), Gaudutes. 2222 Ҙ Semicytherura Wagner, 1957 (RIA SUSO BOIS A Е Е sp. aff. S. arayaensis Bold, 1966c ... S os 55,F,B SDN а Қалыш Т 55,F,B semu ansa) CN eicllaa. на Ст en 17,F,B ЖӨ АУЫН ЕК аео НЫН 222... 39 Semiutransiucens (atts Galyolla. IE UR ee a 39 Semitransiucensqch)r Gativella Ды апты ы 39 Sen Gupta, Malavassi, and Malavassi (1986) ......................... ў Serrocytherura panamensis Ishizaki and Gunther, 1974 ......... 53 Қа ОО ьа аан 14,35,F,B shallow-marine species of Cytherella ................................... 17 Shell Development Company, New Orleans, LA, U.S.A. ......... 7 Shell Oil Company, Houston, TX SISSI hy (OMS) а ea ee Skogsberg (1928) .. South America e а Sowerby (1850) spinoalata, LONOU он en ee T 47,49 VioxoaonuliaboxoconcHa)ytes. ый карадын 22 xm 47,F,B Spinodiata ан) OXQGOTIGHO. antaras CREE DON 47 Springvale Formation, Gransaul clay member Melajo.clayamember 2222.22... Sabaneta glauconitic clay member Savaneta glauconitic clay member и. 32 spurium, BENUCKBIOMAL c ooo ИЉА А А М 123.32 66,F,B IPEN HOMA. aa esed ote ЕКЕН ЫТЫ АНА О 66 SIC GLO Leta ea penta aunt RIS ERE eater 12,35,48 МАТО sus eR e ане ынс ла а КЕСИЛ 35,70 STA ovali... eier OR LI 49 State University of New York, Purchase, NY, U.S.A. ............. 7 Teme ka CORD) И 18,21,25,26,37,38,50 Steineck et а!. (1984) 25:26;37,50 DIEINECK ВАШ Mu c me PI UM eU 7521537 SIGDUSISOHIGLOSS)E s a NUR ee 12,28 Stephenson (1944) 7411533540 stephensoni, @yTherdea (Haploeriheniden) carla aes os did 25 Hemicyprideis SUCI SDN CIO IE das e 5,52,53,54,F, SUDIMPRESSUS IN COCO AMES a nn S RR ене 40 Ид да аҚ 222... 50 subreticulatum, Cytheropteron ы IIA Swain (1952) Swain (1955) Swain (1967) Swain (1968) 104 BULLETIN 329 AO) ЕТИК gr A PM CC M E (Oratore ӨШ ss ME енен A LED пи (ОСУ A ви sno E КР МН Paria shelf ......... Swain and Gilby (1974) Princess Town .......... Swain and Gilby (1976) Quinam Quarry an AE 25 ООВ ООА a еле A ANO en dot. aute Јао ОЈ кој а E EN Sy ain aft )Gyiherura... Саны аты 22 IAG BOGE O es cies ee rnnt НЕТА es CONS Sylvester-Bradley (1947) SECTOR OUAIS ЕЕ seeds cron NINE СТА. 42 Sylvester-Bradley (1948) LUO AACHISTS VIL CMP A К ілі suu ctr T 12,14,15,26,F VHS АШ.) ATA Caro iaa кечен» EUER d ТЕЛА КЫС 26 maxon Range Zono (defined) 2.2 ae Ha u 9 tschoppi, sy anzu AUS ааа дан ЕН ТИЕ T TT 40,56,67 CAI a E S а LIT E с шут. 37 Teeter (1975) na 19,21,22,28,29,33-37,40,45,46,49,56,62,67,68 TAE пета UN cM MR T CEA 11,37,F IO) ec; MN О TUR DR Те LO TIS MEUS dE Aa 28 ОПАО СМРТНА оа Ін Ea 62,F,B tenuissimoides, Xiphichilus .... Б m s 491865 TU [Tulane University, New Orleans, LA, U.S.A.] ......... SGAE ТӨЗУДЕ; L ONIU E о аана е ына URN EHEN 64 14,15,16,17,33,35,42,43,66,Е Техав, ШО БалаЕЕОППӘа ОШ са а А Поа 1 ЕТСЕ es cmd A pg NUR DK ea tumida, Jefferson County, Stanolind well No. B-2 ......................... J^] HO (2) СМЕ на О Lm C есу NA 54 Thomonde Formation inne : PUY CLOG Неке а НИТИ И АС И 54 thoracophora (af); Hermianites. od RE IRVDRIOGVINEFUNGSS Denn кере ина IN c PIT 58 OTRA CD Б os дин ук о Touroconcha Ishizaki and Gunther, 1976 ........................ UluichrandBasslen (S04) tenor RE ORI 35,41,42 mosquera Bate, Whittaker, and Mayes, 1981 ... DIBDOTOVRGVIeLellQide IN ada NON 19 ?Touroconcha lapidiscola (Hartmann) ................ x a United States Geological Survey, Reston, VA, U.S.A. ............. 7 “ереп га BOWEN: 1093 1 en ine en! United States, cubensisynammidentata«Bold)csg о betae MULAN COCOS SOU NC een ERN ИЕК 12 mammidentata (Bold, 1946) ..................... Adlanticicodstalsplaimnbecss islet. ieee tas aa 17,23,31,35,38,62 pretiosa Levinson in LeRoy and Levinson, 1974 ............... 38 Gulf coastal plain .......... 17,23,24,28,31,33,37,39,41,47,49,62 ?Trachyleberidea pretiosa Levinson ÜroleberisuhmebelMl ева WI E TR E MR 14,69,70 ПОЕ Оу ала веуавоп ОА н ла Lh дЫ: оте атол (Brady ко тоа) ласы Әл ree RE 10 ND OU ehereBrady 89810. iae е ERE LON GUATARB OGIO 6 Sits, ee 252222222... 10,69,B bermudezi crebripustulosa Bold, 1966a triangula Bold, 1968 .... 69,F,B aff. T. vicksburgensis (Howe and Law) Өрен nm ыы xem рд? а 69,70,F ОСОРЕ EE Eee A Asa 39 зрна аралы nee Иек тасада 70,Е bermudezi crebripustulosa Bold, 1966a .......................... 38,F SDR RUE, Eee SON a 69,70,B ES OCCAINICI, HICEYHAMIOS аон ины». ee 37 Uscarrkormatio mios. ER EROS. dea ie 7 ТИШИН DRE. eri аа ее ife neto le fae 68 USGS [United States Geological Survey, Washington, DC, U.S.A.] Па E ОЈ RS nennen OPTED DEUS Айы c. i Ora m ca ы amd Fete A 11,16,58,69,Е o AE LAA T E E RC E 13:523 69,F,B USNM [U. S. National Museum of Natural History, Smithsonian Imonsulamsskestoleberis. nisse dais Miele 67 Institution, Washington, DE N: SUAVE Be. ПАРТЕНОН LITER a: Арен ae 16,17,23-26,29,31,34,35,38-40,61,62,65,66,68 oUm CONCHA Bold TOAG) nenne 21,F,B tricornata, Loxoconcha (Loxocorniculum) .......... THORS 49,F,B Мае ОШ ER EN 41,62 tricornatum, Loxocorniculum varaderoensis, Triebel (1952) ЖОР ПООЖ нее 1: 5 19,20,F,B Triebel (1958) ERODOTHLOOyDELSQ АҚ nenne een NE 19 Triebel (1960) TOR variabilis, Pedicythere Кн э) 5,13,63,F,B Trrebelna. а. Ba EN EEE AAA ON re АНИНА 45. a 35,F,B АРА Е элт о eoe ован наивни ние па eee de RORIS Msi) отита AIO Ne алыса лы сағы RETRAITE и u trigonalis var. macropunctata, Brachycythere ....................... 33 Venezuela .... 7,10,17,27,31-33,35,36,38,46,49,51,57,58,61,67,69 trigonula, CUD AS ATA ME Ж) азабы alo 9 РАДИ reas ва sc Eres EM пало АПАТЫ ЛЕЛ D: 33 Cubagua СОТО ОНЕ АВА УНИ ОПАТ ree E OR NE TS 92 GI DES АЕ алалы tco acq LORS D ACH 33 БАСО ИЕ. EE cvv аас SCOLAIRE TS 7,9 fa mai МЕРЕН NUES 7,9,10,17,18,21,22,24,28,31,32,34-36,38, (ӨШеншікіспенет A RS ER 52 40,42,43,49,51,57,59,61,66,68 Бо?опеЕІНМелнетбайш 222020. NEN 25,39 Bad НӨӨ А nuire bars аа ИВА M | Margarita Biol О ЧДУ ее алы ла ERBE 50 north coast Central Range, Orinoco-Paria shelf Flanagan Town 098 ПОТТА ТАУАР ОШЕА MIs ОИЕ: 7,9 Mania A A ER 25438 VEHI ORULOSQRG РЕНО РО НО м hi laa RENS 60 Mamural road 38 vermunti, (GHA RIAL ATI Bay nennen 40 Cyrheridea (Dolo Иа ИТЕ 26 MAD mc mec t NEM қысына MH 17,24,27,29,66 VUE i ues do i а та Ме ERREUR 26,27 ЮЕШ РА АВА РАВАН SCHEME EL LE T 42 VESPA ИШ БЛ Л en CUR нн ды HE 5,20,F,B ө | | % DOMINICAN REPUBLIC NEOGENE. 7: BOLD 105 vespa (Ch) ATEOA Rie e ES OS 1 59 20,B тапсакпевавтавудан лт лы 12212 68 Vicksburg Group Spam А margaritea (BIIY) не а 68 vicksburgensis, punctata ЛОВ Cl tee we e NES i 68,B (A e усы re rigbyi Morales, 1966 ........ Jugosocythereis triangularis Puri, 1954 ......... КО Cr E EIU Sr ea D EE TU triangularis Weber, 1937 BOLAS Deis xni E LM LI lai spur ката к uu M ET. Psammocythere Sia E ка па De ор О M M M лс. Quadracytliereseee tc emer x c Me Medo с CSD iS s m IN Iu и: VIGRSDUTBOHSIS (ай), аси еве 2... SON UE со екы e s ыы ш ерше Л БЕ vicksburgensis (ex gr.), Pseudopsammocythere ..... Ze ОЛОВА ЭРА videns, Cytheropteron 56 Hemicytherura 56 УДТ ТА Ва СНУ Оа е 22 joe к Аа на а A 67,68,69,Е, йышт ы Клан cu кыы же с кычык ке ысыгым сыч 9 ?Xestoleberis VOKS Ви е 22222220 =. punctata Tressler, 1949 Nokes Еато ОК bees аео 6,11,16,F rigbyi Morales, 1966 ........... val aaa) Лл... 13,14,18,F,B Xiphichilus Brady, 1870b tenuissimoides Swain, 1967 МУ ЙАШ (Сеннен 22 EN КОА ои Wagner (IS) И MM E е wagneri, Loxoconcha ... e 5 3n oe la ERE PI OU О rU Aree а а аза EL «Bae Ны eee ee ee 46 West Indies” ...... qe een ener eene Corbella Whatley and Downing (1983) Leptocythere Nepales aris Sars IE nn 12,13,67,68 “Leptocythere” _ Е РОА E 5,12,68,F,B Yorktown Formation ы a e a 0 14... 5,12,67,F,B yorktownensis, Cytheropteron ROWSE RUT NO GA ee 67 matee Brady 808.02. 68 Zoological Museum, Copenhagen, Denmark ........................ 22 Table 2.— Distribution of Ostracoda in samples from the Río Gu- rabo section. Narrowest line less than 10 specimens; medium width line — from 10 to 20 specimens; widest line — more than 20 specimens. (мој рио әмон) sısuaß. "ds snjipigdix “ds suagajoysax “ds suagajoysax "ds suagajoysax “ds suuagajoysax "95 suuagajoysax "95 suagajoysax 2 425594] Dyopund 5/ләдә)о;зәу "ds си ‘опр sıuagajoysax "ds >и 'оејјцир siieqejoisax "ds suagajoın Plog ojnBuoia saqajn рјод o/onbao, sıuagayoın (рјод) оу>ио>Ху>осі sudA»opnBuoii, (рјод) оошәрішшош pepiueqojAq2041 y “ds punsayAsuwag Plog SISUSDÁDID “с "yo “ds onay orus "ds sapiyrosaj2¢ (рјод) mwBury ¿opos "ds u /оурло ојјешром у шлој (spao^p3) огободиоз орәшроу -owr не on (sp10Mp3) озобо.уио> ојјештром (Арола) oj»npoad sayko pono (ung) ¡moy әләуХоолроп(ә Plog osojnisnd pupiung (spj214 рио |јећлођ) sisuaun¡D6 риошпа Plog /&4eqpuos оәргләц/әојішпа рјод orod ч'елошАообАлаја "ds “и “sung 19194 ообАлоја pi^ "Jb хе әлә: lopnasq рјод 3600p рицолезорпг5а "ds "u “IDAS 2оу>иоэоә;олд zeu»ups рио DAQUIIQN] 5/5иголаролрл siudK»ojuodoag “ds ва Хоошод (spjer4 puo jjo405) лојиожелр “16 хә вма/Хоошод с `5 asaysAr0j24/ Yq 1 ‘ds әләу/оо;><|Ч4 "ds си /0421ц5 олоц офа [Ud "ds *u ‘D4994 IJIYA Yd «ds “и ‘DAN олоц оца ‘ds papiueuiossiueg Plog ound pepiuequossiaaq рјод s/sueqouo» papiuequossiuad грјод шпипав i ouojsionjaq "ds "u "siiqpiaoA. эләуАорәд (Арола) 01091414104 ‘d “о “ds pepiseucuog (Plog) оџаношр оәрізәиолод (Plog) оә/ио оәріѕәиолод "ds си “оо әцімдоод z “ds ошорзохоролод 1 “ds ошо;зохоролод у ‘ds сәріләу ооо Plog /ddou»s; papay ovog “ds ‘и "раошзјоз оәрмәц /оолод ѕрломрэ ојцјо рерџешАорлра "ds әләуАоолод (4a¡ssog рио uou) гиоубпол ошшомо (Арола) офојпл195 ошиомсу рјод о;8лбио тело опоо о) 48499 | 904095 ѕәџрпоэоәм "ds си "isuepunos ојјәХәѕипүү "ds ‘и “билі pjjeKasunw "ds мәдә|озәхол>уу (ung) гәмоу гле 042 z ‘ds 5маАзолоруу 1 ‘ds sud/oo420w “ds puiudo0420w г чиоицлон ojoosipido| (оц>ио>о:по1) оузиозохој рјод s/sueseuoq (оу>ио>ош|од) оузиозохој (ҳоз) 0j0u40214 (uinn21u4020x0]) оцзиозохој (Apoag) ләә} (uin2104020x01) рузиозохој (Арола) оџојпзлеатозлор (un[noiu4020x01) оцзиозохој рјод o/o[pouids (рузиозохој) oq»uo»oxo] рјод ор:оҙ (оу>ио>охо1) оузиозохој HAM Еген Pplegibztepoqu»iop әш AN (зә|үпүү) ojooissAqo ‚у, “yo “48, ош.обиоу,, ‘ds оишобиру 5рјә!у рио |әАо>) o¿yyanb ошлобиоу Plog osseudep ош.обиоу (Арола) osouuod з'елошАоозобпг (ung) гуоола!илоц зеџиошлен "ds олплошАишен und SISUSÁSADUOL) раплешАшен (ung) ‚род panaequ nuo] Plog /әмоц ‘Н “yo “ds piura Plog тога ;оәрізәщ/Хәошобире) 9 ‘ds puna n3 3 ‘ds олмәу ол а `9 олплошАопа 2 ‘ds оллләу, ол 9 ‘ds D4naauyKon3 V ‘ds олплошАопа ‘ds “и “әриоуиу олплошАопа (Арола) охојашоз “16 xe олплешкопа ‘ds "u 'грцзеошелрош в!елошАоошц23 €) ‘ds pana а ‘ds pana 2 'ds punsay A) y “ds onay y Plog /шомѕ '5 “yo ‘ds Dunay Plog 048saJ» юлпләцХ—) Plog иоуосі (иолә,аоләуіХоово4о1) иолефаолешко "ds “и 'езигодолпб (иолојаолошАо) иолејаолошко "ds -u ‘шпиожшшор (иолофаолошко) uoaydoJay A) “ds ‘и "јолпрпћа (рлјолозлелу) uosajydosayjAD (рјод) ouo»iuuop оцәләуіХ> g `9 оәрюуәләу ко g ‘ds ојјелешкоу v “ds оуәләу A) мәіббау oob “2 “yo “ds о//әләуХ> Арола sijojimias “> “yo "ds о/әләу > Арола vyand “2 “о "ds о)әләу AX) Plog оио>ішшор ојјелошкоу Plog 240/802 оуәләу > (зәц>шүу) ѕ/ѕиәрјпобоәѕра siepiad K^ “ds papiupwysn> [Re ab) UOSUIA9] xajndijjaq 04505 (pjog) onuru oqwınboy (рјод) 0404s0204saBu02 oquinbo-? "ds геџрпођ (Аролд) зиојпбиојзел sejipno Plog sisueediu зеџрпођ spja14 рио j84105 sjpıpaw зеџрпођ зрје рио |јаћло чари ојјелцоју (ung) шоХ ојјед од "ds "u “мәріәб ојјед оду “ds siudAroyyAg "ds "u 'so4e»ououi рицолезошАа Də] рио әмон 195804 '8 "yo “ds asaysArAy20I1g (рјод) оғобиојдо o,ojiddopaiog “ds оірлоя Аролд osojasibuo| pipuiog 5р-омрҙ ојпомеој орой Apoig озошлој ‘g "yo “ds орлоя “ds опеојиблу € “ds oi»eojibay 2 ds oi»eojibay 1 ds огәојуиблу "ds “и ‘odsaa “y “y ‘ds orm»eoj[ibay ds си ‘odsaa DI930///61y Plog чџхе asayA20quiy == Е-ң | | A I ІШІ yl е БЕ mi | Bi | I І 4 ІТЫ ІІІ ІШ ЕН ШИНА | І I I | — --- | = | ОВЕ [ 1 ¡EE | | | LI | I imi PREPARATION OF MANUSCRIPTS Bulletins of American Paleontology usually comprises two or more sep- arate monographs in two volumes each year. This series is a publication outlet for significant longer paleontological monographs for which high quality photo- graphic illustrations and the large quarto format are a requisite. 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