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When first described by Eviatar Nevo of the University of Haifa ( in 1968 ) the genus Cordicephalus was thought to contain two species , C. gracilis and C. longicostatus .
 University of Haifa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 University of Haifa