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Nakaya, K. (December 13, 1991). "A Review of the Long-Snouted Species of Apristurus (Chondrichthyes, Scyliorhinidae)". Copeia. 1991 (4): 992–1002. doi:10.2307/1446094. JSTOR1446094.
Flammang, B.; Ebert, D.; Cailliet, G. (2007). "Egg cases of the genus Apristurus (Chondrichthyes: Scyliorhinidae): phylogenetic and ecological implications". Zoology (Jena, Germany). 110 (4): 308–317. doi:10.1016/j.zool.2007.03.001. PMID17611091.
Nakaya, K. (December 13, 1991). "A Review of the Long-Snouted Species of Apristurus (Chondrichthyes, Scyliorhinidae)". Copeia. 1991 (4): 992–1002. doi:10.2307/1446094. JSTOR1446094.
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pubmed.ncbi.nlm.nih.gov
Flammang, B.; Ebert, D.; Cailliet, G. (2007). "Egg cases of the genus Apristurus (Chondrichthyes: Scyliorhinidae): phylogenetic and ecological implications". Zoology (Jena, Germany). 110 (4): 308–317. doi:10.1016/j.zool.2007.03.001. PMID17611091.