 Males have been observed to exhibit mating behaviours with other males . Some males have been found with numerous spermatophores embedded in their mouth funnels . Since bigfin reef squids distinguish sex by visual cues , this may be a form of deception . The smaller males ( termed " female mimics " or " sneaker males " ) might have assumed body patterning typical of females in order to trick larger males . Believing they are females , they will then waste their spermatophores on them . This behaviour has also been observed in other cephalopods . 
