Scientific Name	Distribution	Max. Length (cm)	Year
Alluna sublitoralis	Northeast Atlantic.		1983
Ancylocirrus ornatus	Northeast Pacific		2000
Aphanostoma adherens	Northeast Pacific		1938
Aphanostoma album	Northeast Atlantic		1968
Aphanostoma armatum	Northwest Atlantic		1932
Aphanostoma bruscai	Northwest Atlantic	0.1 TL	2003
Aphanostoma cavernosum	Northwest Atlantic		1938
Aphanostoma diversicolor	Northwest Atlantic
Aphanostoma elegans	Northeast Atlantic		1878
Aphanostoma fuscum	Northeast Atlantic		1938
Aphanostoma latissimum	Northeast Atlantic		1879
Aphanostoma macrobursalis	Northeast Atlantic		1946
Aphanostoma rhomboides	Northeast Atlantic		1878
Aphanostoma sanguineum	Northeast Atlantic		1946
Aphanostoma virescens	Arctic and Northern Atlan		1845
Archaphanostoma agile	Northeast Atlantic, Arcti		1878
Archaphanostoma histobursalis	Northeast Atlantic		1968
Archaphanostoma macrospiriferum	Northeast Atlantic		1946
Avagina glandulifera	Northeast Atlantic		1953
Avagina incola	Northeast Atlantic		1902
Avagina marci	Southwest Atlantic		1975
Avagina polyvacuola	Southwest Atlantic		1979
Avagina sublitoralis	Northeast Atlantic		1976
Avagina vivipara	Northeast Atlantic		1956
Baltalimania kosswigi	Northeast Atlantic		1959
Bursosaphia baltalimaniaformis	Northeast Atlantic		1968
Diatomovora amoena	Northeast Pacific		1965
Faerlea antora	Northeast Pacific		1952
Faerlea echinocardii	Northeast Atlantic		1972
Faerlea fragilis	Northeast Atlantic		1945
Faerlea glomerata	Northeast Atlantic		1945
Isodiametra bajaensis	Eastern Central Pacific	0.0 TL	2005
Isodiametra colorata	Southeast Pacific		1979
Isodiametra divae	Southwest Atlantic	0.1 BASL	1950
Isodiametra earnhardti	Western Central Atlantic	0.1 TL	2004
Isodiametra helgolandica	Western Central Atlantic		1968
Isodiametra hortulus	Northwest Atlantic	0.2 TL	2003
Isodiametra karpredi	Northwest Atlantic	0.1 TL	2001
Isodiametra marginalis	Northwest Pacific		1952
Isodiametra norvegica	North Atlantic.		1946
Isodiametra pulchra	Northwest Atlantic	0.1 TL	1991
Isodiametra urua	Northwest Atlantic		1954
Isodiametra variomorpha	Northeast Atlantic		1968
Isodiametra vexillaria	Southwest Atlantic	0.0 BASL	1948
Isodiametra westbladi	Southwest Atlantic		1949
Postaphanostoma atriomagnum	Northeast Atlantic		1968
Postaphanostoma filum	Northeast Atlantic		1968
Postaphanostoma glandulosum	Northeast Atlantic		1968
Praeaphanostoma brevifrons	Northeast Atlantic		1968
Praeaphanostoma chaetocaudatum	Northeast Atlantic		1968
Praeaphanostoma gusana	Eastern Central Pacific	0.0 TL	2005
Praeaphanostoma longum	Northeast Atlantic		1968
Praeaphanostoma musculosum	Northeast Atlantic		1979
Praeaphanostoma parvum	Northeast Atlantic		1971
Praeaphanostoma rubrum	Northeast Atlantic		1968
Praeaphanostoma sizilianum	Northeast Atlantic		1954
Praeaphanostoma thalasophilum	Northeast Atlantic		1979
Praeaphanostoma vitreum	Northeast Atlantic		1979
Praeaphanostoma wadsworthi	Northwest Atlantic	0.1 TL	2003
Praeconvoluta castinea	Northwest Atlantic	0.0 TL	2003
Praeconvoluta karinae	Northeast Atlantic		1968
Praeconvoluta minor	Northeast Atlantic		1974
Praeconvoluta schmidti	Northeast Atlantic		1977
Praeconvoluta stephania	Northeast Atlantic.		1983
Praeconvoluta tigrina	Northwest Atlantic	0.1 TL	2003
Praeconvoluta tornuva	Northwest Atlantic		1999
Proaphanostoma tenuissima	Northeast Atlantic		1946
Proconvoluta primitiva	Northeast Atlantic		1968
Pseudaphanostoma brevicaudatum	Northeast Atlantic		1968
Pseudaphanostoma divae	Southwest Atlantic		1952
Pseudaphanostoma murmanicus	Southwest Atlantic		1967
Pseudaphanostoma pelophilum	Northeast Atlantic		1968
Pseudaphanostoma psammophilum	Northeast Atlantic		1968
Pseudaphanostoma smithrii	Western Central Atlantic	0.0 TL	2003
Pseudaphanostoma variabilis	Northeast Atlantic		1946
Pseudoposthia macrogonopora	Northeast Atlantic		1946
Raphidophallus actuosus	Eastern Pacific		1965
Rimicola glacialis	Antarctic.		1908

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Species Identification: Find Species

Family: Isodiametridae (See list of species below)

Family: Isodiametridae

(See list of species below)