There are a number of components to configure to get Kerberos Pass-Through Authentication working for the Citrix Presentation Server Client for Macintosh 10 on OS X including:
 - Binding Mac OS X to Active Directory
 - Checking Kerberos Functionallity
 - Enable Kerberos Delegation on the Presentation Server computer account
 - Create a Citrix connection in the Citrix ICA Client Editor
And also some troubleshooting may be required:
 - Citrix Servers may require Microsoft Hotfix 940925 for LSA generated an exception
 - Enable Kerberos Logging in the System Event Log
 - Service Logons Fail Due to Incorrectly Set SPNs
Binding Mac OS X to Active Directory
 - Double check that the Mac OS X client is pointed to your AD server for DNS.
 - Open /Applications/Utilities and launch Directory Access.
 - Check the Active Directory plugin checkbox. 
 - Click on the Configure... button.
 - Provide the directory domain and a computer ID
 - Click on the Bind button and provide your AD credentials
 - Log off and logon as an Active Directory user
Checking Kerberos Functionallity
 - Logon as an Active Directory user
 - Access Active Directory resources such as SMB Shares/ISA Server
 - In the Finder, navigate to /System/Library/CoreServices and launch the Kerberos application. 
You should see that the user obtained a ticket granting ticket from the KDC in the realm you created.
Enable Kerberos Delegation on the Presentation Server computer account in Active Directory Users and Computers
 - Right click the Presentation Server computer account and select Properties from the context menu
 - Select the Delegation tab
 - Select the Trust this computer for delegation to any service (Kerberos only) radio button and click OK
Assuming the Citrix Presentation Server Client for Macintosh is installed:
http://www.citrix.com/English/SS/downloads/details.asp?dID=2755&downloadID=3250&pID=186
Create a Citrix connection in the Citrix ICA Client Editor
 - Open /Applications/Citrix ICA Client/Citrix ICA Client Editor
 - Select Published Application
 - Click Browse to select the required Published Application
 - Select the Kerberos Passthrough Authentication option to connect automatically with the credentials configured in the Macintosh Kerberos application.
 - Click Save
 - Click Connect to Start the ICA session
Citrix Servers may require Microsoft Hotfix 940925 for the following errors:
 - Event ID 5000 : The security package LSA generated an exception
 - Event ID 26:	The system process 'C:\WINDOWS\system32\lsass.exe' terminated unexpectedly with status code -1073741819
 - Event ID 1076: System Failure: Stop error Reason Code: 0x805000f
If Kerberos authenticates against the Presentation Server, but not other servers:
 - Enable Kerberos Logging in the System Event Log (MSKB: 262177)
 - List SPNs of hosts that cannot be accessed using the command SETSPN -L <servername>