syndromic X-linked intellectual disability Raymond type (Monarch Disease Ontology identifier MONDO_0010427) is a syndromic X-linked intellectual disability characterized by intellectual disability and marfanoid habitus that has material basis in mutation in the ZDHHC9 gene on chromosome Xq26.1. Also known as: MRXSR, intellectual disability, X-linked syndromic, Raymond type, mental retardation, X-linked syndromic, Raymond type.