Paratanaidae Lang, 1949
Tanaidae Dana, 1849: 425 (in part).
Paratanaidae Lang 1949: 10.
Paratanaiden Siewing, 1952: 530.
Paratanaida Lang, 1967: 343.
Leptocheliidae Lang, 1973: 223 (in part).
Paratanaididae Larsen & Wilson, 2002.
, eye present.
(antenna 1) uniramous, with four to five articles.
(antenna 2), with 5 or 6 articles; squama absent.
reduced in males.
, palp absent; lacina mobilis only on left mandible; setal row absent; molar broad.
with one pair of lobes, not articulated.
(maxilla 1), with one endite; palp uniarticulated, palp with two terminal setae.
(maxilla 2) reduced.
; basis not fused; endites not fused, wider than basis.
small, falciform, uniarticulated, with few setae at apex or completely smooth.
not reduced, at least three times wider than pereopod basis diameter.
, attachment via sidepiece (sclerite); exopod absent; carpus with few or no long plumose setae.
Pereopods 1 to 3
, coxae present.
, without plumose setae on distal articles; coxa not extended into acute spine; ischium present; dactylus long, curved with spinning glands at tip.
as long as pereopods 5 and 6, dactylus not reduced.
Pereopods 4 to 6
, coxa absent; dactylus and terminal seta fused.
formed by four pairs of oostegites.
with five developed pleonites.
biramous; male pleopods well developed; female pleopods well developed.
present; protopod without curved spiniform process; endopod with two articles; exopod with two articles, or with one article.
. Representatives in both deep and shallow water.
Cite this publication as: 'Larsen, K. (2002 onwards). Tanaidacea: Families. Version 1: 2 October 2002.