<Li> Giacomo and Giovanni Battista Tocci (1875? - 1912?) (dicephalus tetrabrachius dipus) </Li> <Ul> <Li> Daisy and Violet Hilton of Brighton, England (1908--1969), actresses, appeared in the movies Freaks and Chained for Life . Pygopagus . </Li> <Li> Lucio and Simplicio Godina of Samar, Philippines (1908--1936) (Conjoined_twins) </Li> <Li> Masha and Dasha Krivoshlyapova of Moscow, Russia (1950--2003), rarest form of conjoined twins, one of few cases of dicephalus tetrabrachius tripus (two heads, four arms, three legs). </Li> <Li> Ronnie and Donnie Galyon of Ohio (b . 1951), currently the world's oldest living conjoined twins, Omphalopagus . </Li> <Li> Lori and George Schappell born September 18, 1961 in Reading, Pennsylvania, American entertainers, craniopagus . </Li> <Li> Ladan and Laleh Bijani of Shiraz, Iran (1974--2003); died during separation surgery in Singapore . Craniopagus . </Li> <Li> Viet and Duc Nguyen, born on February 25, 1981 in Kon Tum Province, Vietnam, and separated in 1988 in Ho Chi Minh City . Viet died on October 6, 2007 . Ischiopagus . </Li> <Li> Patrick and Benjamin Binder, first successfully separated twins joined at the head, in 1987 by team of doctors led by 2016 U.S. Presidential Candidate Ben Carson . Craniopagus . </Li> <Li> Abigail and Brittany Hensel are dicephalic parapagus twins born March 7, 1990 in Carver County, Minnesota . Both graduated in 2012 from Bethel University, St. Paul, hired as teachers . </Li> <Li> Joseph and Luka Banda (born January 23, 1997 in Zambia), and separated in 2001 in America by Ben Carson, a famed neurosurgeon and later candidate for President of the United States . Craniopagus . </Li> <Li> Ganga and Jamuna Mondal of India, born 1969 or 1970, known professionally as The Spider Girls and The Spider Sisters . Ischiopagus . </Li> </Ul> <Li> Daisy and Violet Hilton of Brighton, England (1908--1969), actresses, appeared in the movies Freaks and Chained for Life . Pygopagus . </Li> <Li> Lucio and Simplicio Godina of Samar, Philippines (1908--1936) (Conjoined_twins) </Li>

How many conjoined twins are in the world