Common names
Kammzähner, Siebenkiemiger Pazifischer Kammzähner, Cañabota gata, Gatita, Pintarroja, Tiburón de 7 gallas, Tiburón pinto, Tollo fume, Platnez, Requin malais, Bluntnose sevengill shark, Broad snouted sevengill, Broad-snout, Broadnose sevengill, Broadnose sevengill shark, Broadnose shark, Broadsnout sevengill shark, Cowshark, Ground shark, Pacific seven-gill shark, Seven-gill cowshark, Seven-gilled shark, Sevengill shark, Spotted cow shark, Spotted seven-gilled shark, Spottie, Tasmanian tiger shark, Tiger shark, Cação-bruxa

Short Description
A large seven-gilled cowshark [536] with a wide head, short and blunt snout, and fusiform body. Dorsal fin small, origin may vary from over insertion of pelvic fins to over free rear tips of pelvic fins. Anal fin smaller than dorsal fin. Tooth count 15-16/13. Reddish-brown to silvery-grey or olive-brown with numerous small black spots on body and fins; cream below [536].
Diet: southeast Tasmania (data base 178 specimens): Teleosts were the main prey at the Derwent Estuary, occurring in 49.0% of stomachs analysed, followed by batoids (30.6%) and sharks (28.6%), while mammals (mainly seals) occurred in 12.2% of stomachs (Table 2). At a species level, southern shortfin eel Anguilla australis occurred most frequently (14.3%), followed by white-spotted spurdog Squalus acanthias (12.2%), Australian sardine Sardinops neo pilchardus (12.2%) and gummy shark Mustelus antarcticus (10.2%). Australian fur seal Arctocephalus pusillus doriferus (8.2%), southern eagle ray Myliobatis australis, banded stingaree Urolophus cruciatus and elephantfish Callorhinchus milii were also important (8.2% occurrence in each case). In Norfolk Bay, sharks were the most important prey (38.6%), followed by batoids and teleosts (27.6% in both cases), and mammals occurred in 23.6% the stomachs containing food (Table 2). At a species level, gummy shark was the most important prey (25.2% occurrence), followed by Australian fur seal (14.2%), Melbourne skate Spiniraja whitleyi (10.2%), spurdog (8.7%) and southern eagle ray (7.9%) [14363]

Distribution
Circumglobal: In tropical to temperate waters; except North Atlantic and Mediterranean Sea. Southwest Atlantic: southern Brazil to northern Argentina. Southeast Atlantic: Namibia to East London, South Africa [536]. Western Pacific: southern Japan to New Zealand. Eastern Pacific: British Columbia, Canada to Chile. Record from India maybe erroneous. Source: www.gbif.org

Human uses
fisheries: commercial; gamefish: yes; aquarium: public aquariums

Biology
Ovoviviparous, embryos feeding solely on yolk [733], with number of young reaching 82 in a litter. Gravid females apparently drop their young in shallow bays. Size at birth between 40 [578] and 53 [518] cm. Distinct pairing with embrace [17086]. Gestation period 12 months. The reproductive cycle appears to be biennial [432]. Found on the continental shelf (Ref. 75154).

Size / Weight / Age
300 cm TL (male/unsexed; [536]); max. published weight: 107.0 kg (Ref. 9987); max. reported age: 49 years [295], born at 40-45 cm [3365]

Habitat
demersal; marine; depth range 0 - 570 m [578], usually ? - 80 m [536]

Dentition
15-16/13 [3365]

Remarks
shark-references Species-ID=4197;

Parasites (arranged by Jürgen Pollerspöck)
Myxosporea

• Chloromyxum bulliti Lisnerova, Martinek, Alama-Bermejo, Bouberlova, Schaeffner, Nkabi, Holzer & Bartosova-Sojkova, 2022 [31228]

Cestoda

• Crossobothrium antonioi Ivanov, 2009 [16207] [25154] [31906]
• Crossobothrium dohrnii (Oerley, 1885) Ruhnke, 1996 [16245] [16443] [16602]
• Crossobothrium pequeae Ivanov, 2009 [16207] [25154] [31906]
• Dasyrhynchus pacificus Robinson, 1965 [5977] [16112]
• Dollfusiella australis Prudhoe, 1969 [16252] [16112]
• Floriceps saccatus Cuvier, 1817 [16112] [23771]
• Grillotia heptanchi (Vaullegeard, 1899) [16602] [16112]
• Hepatoxylon megacephalum (Rudolphi, 1819) [16602] [16112]
• Heteronybelinia estigmena (Dollfus, 1960) [17922]
• Heteronybelinia palliata (Linton, 1924) [16112]
• Heteronybelinia perideraeus (Shipley & Hornell, 1906) [16112] [25154]
• Lacistorhynchus dollfusi Beveridge & Sakanari, 1987 [16112]
• Nybelinia lingualis (Cuvier, 1817) [16112]
• Nybelinia sp. [23382] [16112]

Nematoda

• Anisakis sp. [16602]

Copepoda

• Achtheinus oblongus Wilson, 1908 [16544]
• Nesippus orientalis Heller, 1868 [16603] [16602]
• Pandarus bicolor Leach, 1816 [16603] [16602] [33255]
• Protodactylina pamelae Laubier, Maillard & Oliver, 1966 [17116]

Isopoda

• Natatolana woodjonesi (Hale, 1924) [23898]