1. Cephalopoda from the Gulf of Aquaba, Ministry of Agriculture, Division of Fisheries;Adam;Halfa Bull.,1960
2. ca. 384–330 BC: ‘Historia animalium’ (translated by D’Arcy Thompson);Aristotle,1910
3. Cephalopods;Arnold,1971
4. Intercellular bridges in somatic cells: cytoplasmic continuity of blastoderm cells of Loligo pealei;Arnold;Differentiation,1974
5. Cephalopoda: Decapoda;Arnold,1977