Longsnout Dogfish
Acanthidium quadrispinosum McCulloch, 1915: 100, pl. 14, figs. 5–8. Type: ???. Type locality: Great Australian Bight, southern Australia.
Local synonymy: Acanthidium quadrispinosum: Smith, 1937: 168, fig. 1. Deania eglantina: Smith, 1949a: 58, fig. 49. (in part = D. profundorum); Smith, 1965: 58, fig. 49. Deania quadrispinosa: Penrith, 1969: 62; Ebert, 2013: 75, fig. 93; Ebert et al., 2013 a: 109, fig., pl. 7; Ebert & Mostarda, 2013: 28, fig.; Ebert, 2015: 66, fig. 71; Ebert & Mostarda, 2015: 22, fig.; Compagno, 2016: 1177; Weigmann, 2016: 891. Deania quadrispinosum: Bass et al., 1976: 37, fig. 29 (caption as D. quadrispinosa); Compagno, 1984a: 68, fig.; Compagno et al., 1989: 26, pl.; Compagno et al., 1991: 60; Compagno, 1999: 114; Compagno et al., 2005: 89, pl. 5; Ebert & van Hees, 2015: 144. Deania quadrispinosus: Bass et al., 1986: 54, fig. 5.10.
South Africa voucher material: SAM uncatalogued, collected during research survey and reported by Compagno et al. (1991).
South Africa distribution: A few scattered records from off Cape Town (WC), Algoa Bay (EC), and northern KZN.
Remarks: Records from South Africa are few; this species appears to be more common off Mozambique and Madagascar.
Conservation status: VU (2020).