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  <xs:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedLosses" abstract="false" name="ShortTermInvestmentsAndOtherGrossRealizedLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_ShortDurationInsuranceContractAccidentYearsPriorTo2019Member" abstract="true" name="ShortDurationInsuranceContractAccidentYearsPriorTo2019Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_AccidentYears20162015and2014Member" abstract="true" name="AccidentYears20162015and2014Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_PercentageOfDividendWithholdingTax" abstract="false" name="PercentageOfDividendWithholdingTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
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  <xs:element id="jrvr_FeeIncome" abstract="false" name="FeeIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_ShortDurationInsuranceContractAccidentYears2018AndPriorMember" abstract="true" name="ShortDurationInsuranceContractAccidentYears2018AndPriorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="jrvr_OutstandingLossesAndLossAdjustmentExpensesAssumedFromInvoluntaryWorkersCompensationPools" abstract="false" name="OutstandingLossesAndLossAdjustmentExpensesAssumedFromInvoluntaryWorkersCompensationPools" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_ShortdurationInsuranceContractsAccidentYearsAtLeastFourYearsOldMember" abstract="true" name="ShortdurationInsuranceContractsAccidentYearsAtLeastFourYearsOldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="jrvr_BrokerRelationshipsMember" abstract="true" name="BrokerRelationshipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_A2013FacilityMember" abstract="true" name="A2013FacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="jrvr_ProceedsFromBankLoanParticipations" abstract="false" name="ProceedsFromBankLoanParticipations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_ProceedsFromMaturitiesOfBankLoanParticipations" abstract="false" name="ProceedsFromMaturitiesOfBankLoanParticipations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_BankLoanParticipationsGrossRealizedLoss" abstract="false" name="BankLoanParticipationsGrossRealizedLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_PercentageOfAvailableForSaleDebtSecurities" abstract="false" name="PercentageOfAvailableForSaleDebtSecurities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="jrvr_RenewableEnergyLlcsMember" abstract="true" name="RenewableEnergyLlcsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_ManufacturersAndContractorsMember" abstract="true" name="ManufacturersAndContractorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="jrvr_SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorized" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardIncreaseinNumberofSharesAuthorized" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="jrvr_CommercialMortgageAndAssetBackedFairValue" abstract="false" name="CommercialMortgageAndAssetBackedFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_PaymentsforProceedsfromUnsettledInvestmentsNet" abstract="false" name="PaymentsforProceedsfromUnsettledInvestmentsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_VestingOfRestrictedStockUnitsValue" abstract="false" name="VestingOfRestrictedStockUnitsValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_PercentageOfDividendDistributionTax" abstract="false" name="PercentageOfDividendDistributionTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
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  <xs:element id="jrvr_IndividualRiskWorkersCompensationMember" abstract="true" name="IndividualRiskWorkersCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_CreditRiskReinsurerOneMember" abstract="true" name="CreditRiskReinsurerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_BankHoldingCompanyMember" abstract="true" name="BankHoldingCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_CommercialAutoMember" abstract="true" name="CommercialAutoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" abstract="false" name="ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_NumberofBrokers" abstract="false" name="NumberofBrokers" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="jrvr_PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" abstract="false" name="PrepaidReinsurancePremiumsCededPercentageOfTotalBalance" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
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  <xs:element id="jrvr_UnderwritingProfitLossOfOperatingSegments" abstract="false" name="UnderwritingProfitLossOfOperatingSegments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_PaymentToAcquireBankLoanParticipations" abstract="false" name="PaymentToAcquireBankLoanParticipations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_LegalTaxAndOtherProfessionalServicesExpense" abstract="false" name="LegalTaxAndOtherProfessionalServicesExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="jrvr_LifeSciencesMember" abstract="true" name="LifeSciencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_BankLoanParticipationsIncreaseDecreaseinFairValueCreditRelatedImpairment" abstract="false" name="BankLoanParticipationsIncreaseDecreaseinFairValueCreditRelatedImpairment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="jrvr_NonemployeeDirectorsMember" abstract="true" name="NonemployeeDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_CreditRiskReinsurerTwoMember" abstract="true" name="CreditRiskReinsurerTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_ExcessAndSurplusLinesMember" abstract="true" name="ExcessAndSurplusLinesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="jrvr_FairValueOptionLoansHeldasAssetsAggregateFairValue" abstract="false" name="FairValueOptionLoansHeldasAssetsAggregateFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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</xs:schema>
