Speckled Catshark Jaw with Data ex dr.Gordon Hubbell

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Speckled Catshark Jaw with Data (Halaelurus boesemani)

What makes this jaw worth a second look is the story behind where it came from. Pull up a chair — this one has a twist. This specimen was collected from Northwestern Australia, a locality that places it squarely within a taxonomic controversy that has since reshaped how scientists understand this species entirely. It passed through Dr. Gordon Hubbell's hands at a time when the broader Indo-Pacific population was still considered a single species — making it a snapshot of the science as it stood, and a specimen that serious collectors and researchers will immediately recognize as significant.

 Species & Classification

• Scientific Name: Halaelurus boesemani (Springer & D'Aubrey, 1972)
• Common Names: Speckled Catshark, Shortlip Spotted Catshark, Blackspotted Catshark
• Family: Pentanchidae (deepwater catsharks) Wikipedia
• Order: Carcharhiniformes
• Locality: Northwestern Australia
• Etymology: Halaelurus derives from the Greek halos (sea) and ailouros (cat), an allusion to the shark's cat-like eyes; boesemani honors Marinus Boeseman (1916–2006), curator of fishes at the Rijksmuseum van Natuurlijke Historie in Leiden, Netherlands FishBase

 Biology & Physical Characteristics

• Maximum length up to 48 cm (19 in) Wikipedia
• Pointed snout, small mouth, and raised gill slits Wikipedia
• Dark spots small and very numerous, usually no larger than the spiracles, over or between weak saddles or bars Shark-References
• About 8 saddle-shaped markings along the body Sharkwater
• Maturity reached at approximately 35 cm FishBase; females max out at 47 cm

Habitat & Distribution

• Currently considered restricted to the western Indian Ocean — the Gulf of Aden and off the coast of Somalia Wikipedia
• Historically recorded from Vietnam, the Philippines, Indonesia, and Western Australia, though the full extent of this range requires further confirmation as several similar species may be involved Shark-References
• Occurs at depths of 37–250 m (120–820 ft) Wikipedia
• Found on the continental shelf Shark-References in demersal, bottom-dwelling habitat

Reproduction

• Up to 4 egg capsules may be found in an oviduct, though it is uncertain whether these hatch inside the oviduct or are laid externally Shark-References
• Suspected oviparous, with pups approximately 7 cm at birth Sharkwater
• Reproductive biology remains poorly studied due to the rarity of confirmed specimens

Conservation Status

• Listed as Vulnerable by the IUCN Sharkwater
• Poorly researched; the threats it faces are unclear Wikipedia
• Vulnerable to bycatch in both trawling and netting operations; fisheries throughout much of its range are largely unregulated Wikipedia

Misc. & Collector Facts

• The NW Australia locality carries special scientific weight: two new Halaelurus species have since been described from Australian and Indo-Pacific waters Wikipedia, meaning this specimen was collected and identified prior to that taxonomic split — giving it historical and research value beyond what most jaw specimens carry
• Very little is known about the biology of this species Sharkwater, making documented physical specimens particularly valuable to researchers
• Dr. Gordon Hubbell provenance adds significant authentication and collectibility value
• Ideal for: catshark specialists, systematic ichthyology collections, natural history displays, museum-quality specimens