The genus Quinquelaophonte Wells, Hicks & Coull, 1982 was erected to encompass the quinquespinosa-group of Heterolaophonte Lang, 1948. This taxon currently includes 13 species, excluding the questionable species Laophonte brevicornis Scott, 1894.

Quinquelaophonte species inhabit various substrata, e.g., silty sand, intertidal mud, and gravel, and are widely distributed around the world, e.g., the Central Indo-Pacific , Western Indo-Pacific , Temperate Australasia , Temperate Northern Atlantic , Tropical Atlantic , Temperate South America , and Temperate Northern Pacific realms

Quinquelaophonte aestuarii Sciberras et al., 2014 [Argentina] Quinquelaophonte aurantius Charry et al. 2019 [New Zealand] Quinquelaophonte bunakenensis (Mielke, 1997) Quinquelaophonte candelabrum Wells, Hicks & Coull, 1982 [New Zealand; brackish waters] Quinquelaophonte capillata (C. B. Wilson, 1932) [north America; marine sand] * Quinquelaophonte enormis J. Kim E. Nam and W.Lee, 2020 [Korea; marine sands] Quinquelaophonte koreana Lee, 2003 [Korea; marine] Quinquelaophonte longifurcata (Lang, 1965) [USA; marine] Quinquelaophonte parasigmoides (Bozic, 1969) [Reunion; marine] Quinquelaophonte prolixasetae Walker-Smith, 2004 [Australia; marine] (left) Quinquelaophonte sominer Kim & Lee, 2023 [Korea] Quinquelaophonte quinquespinosa quinquespinosa (Sewell, 1924) [Africa, India, Australia; marine] ** Quinquelaophonte quinquespinosa bunakensis Mielke, 1997 [Indonesia; sandy beaches] Quinquelaophonte varians Bjornberg, 2010 [Brazil; rocky pools] Quinquelaophonte wellsi (Hamond, 1973) [Australia; saline lakes, wetlands]

* Synonyms: Paronychocamptus capillatus (C. B. Wilson) sensu Lang, 1948; Paronychocamptus wilsoni Coull, 1976; Heterolaophonte noncapillata lang (Coull, 1976)

** Synonyms: Laophonte quinquespinosa Sewell, 1924; Heterolaophonte sigmoides (Willey, 1930) sensu Por (1973)

"The name Langia was initially introduced by Moore, 1872 for a genus of the moths family Sphingidae (with the type species Langia zenzeroides Moore, 1872 from India). Subsequently, Wells & Rao, 1987 described a copepod genus of the family Laophontidae (with the type species Langia maculata Wells & Rao, 1987 from India) under the same generic name. Thus, the genus Langia Wells & Rao, 1987 is a junior homonym of the genus Langia Moore, 1872. Özdikmen (2008) proposed for this genus the new replacement name Raowellsia nom. nov.