A bone marrow registry and medical laboratory company that used fashion models wearing high heels and short skirts to recruit potential donors will pay the states of Massachusetts and New Hampshire $770,000 for engaging in an improper marketing practice, officials in both states said Thursday. The Caitlin Raymond International Registry and UMass Memorial Health Ventures Inc. paid models to help recruit potential registrants during donor drives at malls, festivals and sporting ventures, including Gillette Stadium and the Mall of New Hampshire. The practice drew sharp criticism from officials in both Massachusetts and New Hampshire, prompting an apology and a promise to stop using models from UMass Memorial Health Care Inc. in December 2010.