Elthusa nierstraszi, Hadfield, Kerry A., Bruce, Niel L. & Smit, Nico J., 2016

Hadfield, Kerry A., Bruce, Niel L. & Smit, Nico J., 2016, Elthusanierstraszi nom. n., the replacement name for Elthusaparva (Nierstrasz, 1915), a junior secondary homonym of Elthusaparva (Richardson, 1910) (Isopoda, Cymothoidae), ZooKeys 619, pp. 167-170 : 168-169

Taxon classification Animalia Isopoda Cymothoidae

Elthusa nierstraszi nom. n.

Livoneca parva Nierstrasz, 1915: 98-99, pl. IV, figs. 18, 19; 1931: 143.

Elthusa parva : Bruce 1990: 287; Sidabalok 2013: 56.

Lironeca parva : Trilles 1994: 182.

Holotype.

Single ovigerous female (11 mm long; 5 mm wide), Kisser, Indonesia, coll. K. Schädler, 1898 (RMNH.CRUS.I.71).

Distribution.

Kisser (= Kisar?) Island, Moluccas, Indonesia ( Nierstrasz 1915).

Hosts.

Unknown.

Etymology.

The new name honours the original author Hugo Frederik Nierstrasz (1872-1937).

Remarks.

Elthusa nierstraszi nom. n. replaces the name Elthusa parva (Nierstrasz, 1915), originally Livoneca parva Nierstrasz, 1915. Elthusa nierstraszi nom. n. has mesially directed, narrow anterolateral margins on pereonite 1; pereonite 7 not overlapping pleonite 1; pleonites all subequal in width and narrower than the pereon; and the posterior margin of the pleotelson forms a caudomedial point.

The cover date for Trilles’ (1994) ' Prodromus ' was 1991, but the work was most likely completed prior to that of Bruce (1990) and Trilles was simply retaining Livoneca parva in its original combination (albeit using the alternative incorrect spelling Lironeca ; see Anon 1996). Prior to Bruce (1990) the name Livoneca (also as Lironeca ) was largely used in the sense of Elthusa , and there is no possibility that Nierstrasz’s species would remain in or be returned to Livoneca , a strictly New World genus.