# Squaliformes

Squaliformes é uma ordem de tubarões que inclui 80 espécies em 4 famílias.
Os membros desta ordem possuem duas barbatanas dorsais, não possuindo barbatana anal nem membrana nictitante.
Possuem cinco fendas branquiais.

## Classificação

Família Echinorhinidae
* Echinorhinus
** Peixe-prego (Echinorhinus brucus) (Bonnaterre, 1788)
** Echinorhinus cookei (Pietschmann, 1928)
Família Centrophoridae
* Centrophorus
** Centrophorus acus (Garman, 1906)
** Centrophorus granulosus (Bloch & Schneider, 1801)
** Centrophorus harrissoni (McCulloch, 1915)
** Gata-lixa (Centrophorus lusitanicus) (Barbosa du Bocage & Brito Capello, 1864)
** Centrophorus moluccensis (Bleeker, 1860)
** Centrophorus niaukang (Teng, 1959)
** Centrophorus squamosus (Bonnaterre, 1788)
** Centrophorus tesselatus (Garman), 1906
** Centrophorus uyato (Rafinesque, 1810)
* Deania
** Deania calcea (Lowe, 1839)
** Deania hystricosa (Garman, 1906)
** Deania profundorum (Smith & Radcliffe, 1912)
** Deania quadrispinosum (McCulloch, 1915)
Família Dalatiidae
* Aculeola
** Aculeola nigra (de Buen, 1959)
* Centroscyllium
** Centroscyllium excelsum (Shirai & Nakaya, 1990)
** Centroscyllium fabricii (Reinhardt, 1825)
** Centroscyllium granulatum (Günther, 1887)
** Centroscyllium kamoharai (Abe, 1966) (Bareskin dogfish)
** Centroscyllium nigrum (Garman, 1899)
** Centroscyllium ornatum (Alcock, 1889)
** Centroscyllium ritteri (Jordan & Fowler, 1903)
* Centroscymnus
** Centroscymnus coelolepis (Barbosa du Bocage & Brito Capello, 1864
** Centroscymnus crepidater (Barbosa du Bocage & Brito Capello, 1864)
** Centroscymnus cryptacanthus (Regan, 1906)
** Centroscymnus macracanthus (Regan, 1906)
** Centroscymnus owstoni (Garman, 1906)
** Centroscymnus plunketi (Waite, 1910)
* Cirrhigaleus
** Cirrhigaleus asper (Merrett, 1973)
** Cirrhigaleus barbifer (Tanaka, 1912)
* Dalatias
** Dalatias licha (Bonnaterre, 1788)
* Etmopterus
** Etmopterus baxteri (Garrick, 1957)
** Etmopterus brachyurus (Smith & Radcliffe, 1912)
** Etmopterus bullisi Bigelow & Schroeder, 1957
** Etmopterus carteri Springer & Burgess, 1985
** Etmopterus decacuspidatus Chan, 1966
** Etmopterus gracilispinis Krefft, 1968
** Etmopterus granulosus (Günther, 1880)
** Etmopterus hillianus (Poey, 1861)
** Etmopterus lucifer Jordan & Snyder, 1902
** Etmopterus perryi Springer & Burgess, 1985
** Etmopterus polli Bigelow, Schroeder & Springer, 1953
** Etmopterus princeps Collett, 1904
** Etmopterus pusillus (Lowe, 1839)
** Etmopterus schultzi Bigelow, Schroeder & Springer, 1953
** Etmopterus sentosus Bass, D'Aubrey & Kistnasamy, 1976
** Etmopterus spinax (Linnaeus, 1758)
** Etmopterus unicolor (Engelhardt, 1912)
** Etmopterus villosus Gilbert, 1905
** Etmopterus virens Bigelow, Schroeder & Springer, 1953
* Euprotomicroides
** Euprotomicroides zantedeschia Hulley & Penrith, 1966
* Europtomicrus
** Euprotomicrus bispinatus (Quoy & Gaimard, 1824)
* Heteroscymnoides
** Heteroscymnoides marleyi Fowler, 1934
* Isistius
** Isistius brasiliensis (Quoy & Gaimard, 1824)
** Isistius labialis Meng, Zhu & Li, 1985
** Isistius plutodus Garrick & Springer, 1964
* Mollisquama
** Mollisquama parini Dolganov, 1984
* Oxynotus
** Oxynotus bruniensis (Ogilby, 1893)
** Oxynotus caribbaeus Cervigón, 1961
** Oxynotus centrina (Linnaeus, 1758)
** Oxynotus japonicus Yano & Murofushi, 1985
** Tubarão-porco (Oxynotus paradoxus) Frade, 1929
* Scymnodalatias
** Scymnodalatias albicauda Taniuchi & Garrick, 1986
** Scymnodalatias garricki Kukuyev & Konovalenko, 1988
** Scymnodalatias oligodon Kukuyev & Konovalenko, 1988
** Scymnodalatias sherwoodi (Archey, 1921)
* Scymnodon
** Scymnodon ichiharai Yano & Tanaka, 1984
** Scymnodon obscurus (Vaillant, 1888)
** Scymnodon ringens Barbosa du Bocage & Brito Capello, 1864
** Scymnodon squamulosus (Günther, 1877)
* Somniosus
** Tubarão-da-groenlândia, Somniosus microcephalus (Bloch & Schneider, 1801)
** Somniosus pacificus Bigelow & Schroeder, 1944
** Somniosus rostratus (Risso, 1827)
* Squaliolus
** Squaliolus aliae Teng, 1959
** Squaliolus laticaudus Smith & Radcliffe, 1912
Família Squalidae
* Squalus
** Squalus acanthias Linnaeus, 1758
** Squalus acutirostris Chu, Meng & Li, 1984
** Squalus asper (Merrett, 1973)
** Squalus blainville (Risso, 1827)
** Squalus cubensis Howell Rivero, 1936
** Squalus japonicus Ishikawa, 1908
** Squalus megalops (Macleay, 1881)
** Squalus melanurus Fourmanoir & Rivaton, 1979
** Squalus mitsukurii Jordan & Snyder, 1903
** Squalus rancureli Fourmanoir & Rivaton, 1979