taxonID	type	description	language	source
0304FA39FFE4FFD0450FA3767F28FAE0.taxon	description	H. portusjacksoni is known to occur across southern Australia, from Byron Bay (New South Wales) to Houtman Abrolhos (Western Australia), including Tasmania. Several questionable records for this species have existed outside of this range, including off Broome and York Sound in northern Western Australia and Moreton Bay in southeast Queensland. The Western Australian records are based on two specimens: a dried egg case specimen BMNH 1920.10.11.1 collected from near Broome (misspelt “ Brrom ” on specimen label), originally identified as Cestracion (Figure 15 a) and a 234 mm TL female neonate NTM S. 00043 - 001 from York Sound (Figure 15 b). Both specimens were examined in this study and can be confirmed as H. portusjacksoni. These records suggest a substantial northward extension of 2000 km from Houtman Abrolhos to York Sound. Alternatively, a separate remnant population could (or used to) exist for H. portusjacksoni in this region. However, the northern coastline of Western Australia has been well explored, and the fish occurring in this region are well documented. Because no additional records of this species exist north of the Houtman Abrolhos Islands, the range of this species should not be extended north to York Sound. These records should be treated as extraneous and need further investigation.	en	O'Neill, Helen L., Tokunaga, Kotaro, White, William T. (2025): Morphology of the unique egg cases of hornsharks (Heterodontiformes: Heterodontidae). Journal of Fish Biology 106 (2): 389-402, DOI: 10.1111/jfb.15945, URL: https://doi.org/10.1111/jfb.15945
