Cirolana Leach, 1818

Bruce, Niel L., 2017, Review of the species of the Cirolana ‘ parva - group’ (Cirolanidae: Isopoda: Crustacea) in Indonesian and Singaporean waters, Zootaxa 4317 (3), pp. 401-435 : 403

Genus Cirolana Leach, 1818

Restricted synonymy. Bruce 1986: 139.— Kensley & Schotte 1989: 132.—Brusca, Wetzer & France 1995: 17.— Schotte & Kensley 2005: 1218.

Type species. Cirolana cranchii Leach, 1818 , by monotypy (see Bruce & Ellis 1983).

Diagnosis. Diagnoses have been given by Bruce (1986), Kensley & Schotte (1989), Brusca et al. (1995) and Schotte & Kensley (2005). Bruce (2004) gave a restrictive diagnosis to the Cirolana ‘ parva -group’.

Remarks. Cirolana is the largest genus in the family Cirolanidae with 136 described species ( Bruce & Schotte 2015, Rodcharoen et al. 2016, present work). Rodcharoen et al. (2016) provided the most recent list for the Cirolana ‘ parva -group’ totalling 32 species, of which 25 are distributed in tropical waters all oceans, and the remaining being temperate zone species ( Bruce 1986, Bruce 1994a, Rodcharoen et al. 2016). Two of those species listed by Rodcharoen et al. (2016) are here excluded from the group, namely Cirolana meseda Hobbins & Jones, 1993 and Cirolana aldabrensis Schotte & Kensley, 2005 , both of which lack several of the diagnostic characters of the group. In both these species the rostral point does not overlap the frontal lamina and the penial processes are large articulated flat lobes (vs opening flush or papillate openings).