Spirostreptidae Brandt, 1833
Orthoporus absconsus Chamberlin, 1922
Orthoporus abstemius (Karsch, 1881)
Orthoporus acanthethus Chamberlin, 1947
Orthoporus alticola Silvestri, 1898
Orthoporus ampussis (Karsch, 1881)
Orthoporus araguayensis Schubart, 1947
Orthoporus asper (Attems, 1950)
Orthoporus bidens Schubart, 1945
Orthoporus bisulcatus Chamberlin, 1952
Orthoporus bobos Chamberlin, 1952
Orthoporus boreus Chamberlin, 1947
Orthoporus brasiliensis Schubart, 1947
Orthoporus buergeri Silvestri, 1898
Orthoporus caelatus Loomis, 1936
Orthoporus canalis (Chamberlin, 1925)
Orthoporus capucinus (Attems, 1950)
Orthoporus cavicollis (Karsch, 1881)
Orthoporus cayennophilus (Silvestri, 1897)
Orthoporus centralis Silvestri, 1898
Orthoporus chihuanus Chamberlin, 1947
Orthoporus chiriquensis Pocock, 1909
Orthoporus cienegonus Chamberlin, 1952
Orthoporus cienogonus Chamberlin, 1952
Orthoporus clavicollis (Karsch, 1881)
Orthoporus cluniculus (Humbert & Saussure, 1870)
Orthoporus cobanus Chamberlin, 1922
Orthoporus comminutus (Attems, 1950)
Orthoporus conifer (Attems, 1950)
Orthoporus cordovanus Pocock, 1909
Orthoporus corrugatus Attems, 1934
Orthoporus diaporoides Silvestri, 1897
Orthoporus discriminans Chamberlin, 1922
Orthoporus dybasi (Chamberlin, 1952)
Orthoporus esperanzae Chamberlin, 1943
Orthoporus etholax Chamberlin, 1923
Orthoporus euthus Chamberlin, 1952
Orthoporus extensus Loomis, 1966
Orthoporus festae (Silvestri, 1896)
Orthoporus flavior Chamberlin & Mulaik, 1941
Orthoporus foliatus Chamberlin, 1923
Orthoporus fortinus Chamberlin, 1943
Orthoporus fraternus (Saussure, 1860)
Orthoporus gaigei Chamberlin, 1923
Orthoporus gracilior Chamberlin, 1952
Orthoporus guerreronus (Chamberlin, 1942)
Orthoporus haitiensis Chamberlin, 1918
Orthoporus heterogona Silvestri, 1902
Orthoporus hoctunicolens Chamberlin, 1938
Orthoporus indus Beauvois, 1805
Orthoporus kiemi Loomis, 1962
Orthoporus leius Chamberlin, 1943
Orthoporus leonicus Chamberlin, 1941
Orthoporus lomonti Brölemann, 1932
Orthoporus luchilicolens Chamberlin, 1938
Orthoporus margarites (Chamberlin, 1946)
Orthoporus mimus Chamberlin, 1943
Orthoporus montezumae (Saussure, 1859)
Orthoporus mundus Chamberlin, 1942
Orthoporus nesiotes Chamberlin, 1923
Orthoporus nicaraguanus Chamberlin, 1925
Orthoporus nodosus Loomis, 1974
Orthoporus omalopage (Brölemann, 1905)
Orthoporus omalopyge Brölemann, 1905
Orthoporus ornatus (Girard, 1853)
Orthoporus otomitus DeSaussure, 1859
Orthoporus palmensis (Brölemann, 1905)
Orthoporus paxillicauda Loomis, 1962
Orthoporus peregrinans Silvestri, 1898
Orthoporus poculifer Silvestri, 1897
Orthoporus politifrons (Attems, 1910)
Orthoporus punctatissimus Silvestri, 1897
Orthoporus punctatulus (Attems, 1910)
Orthoporus pyrocephalus Koch. L., 1865
Orthoporus reimoseri (Attems, 1950)
Orthoporus reluctator Silvestri, 1897
Orthoporus rodriguezi (Brölemann, 1900)
Orthoporus rugiceps (Attems, 1950)
Orthoporus salvadoricus (Kraus, 1954)
Orthoporus sanctus Chamberlin, 1947
Orthoporus sculpturatus (Karsch, 1881)
Orthoporus solicolens Chamberlin, 1938
Orthoporus spelaeus Causey, 1977
Orthoporus striatulus Pocock, 1909
Orthoporus tabulinus Attems, 1914
Orthoporus teapensis Pocock, 1909
Orthoporus tehuacanus Chamberlin, 1952
Orthoporus texicolens Chamberlin, 1938
Orthoporus tizamensis Chamberlin, 1938
Orthoporus tobagoanus Chamberlin, 1918
Orthoporus torquatus Schubart, 1958
Orthoporus torreonus Chamberlin, 1943
Orthoporus tractus Loomis, 1934
Orthoporus triquetrus Loomis, 1936
Orthoporus trisulcatus (Daday, 1889)
Orthoporus typotopyge Brölemann, 1905
Orthoporus ugmalanus Chamberlin, 1943
Orthoporus unciferens Chamberlin, 1952
Orthoporus unicus Causey, 1954
Orthoporus urucumensis Schubart, 1958
Orthoporus variegatus Silvestri, 1898
Orthoporus vegetus Silvestri, 1898
Orthoporus vialis Loomis, 1974
Orthoporus walkeri Chamberlin, 1923
Orthoporus yucatanensis Causey, 1977
Orthoporus zizicolens (Chamberlin, 1938)
Orthoporus zulu Chamberlin, 1947