Revision of the spider genera Nilus O. Pickard-Cambridge 1876, Sphedanus Thorell 1877 and Dendrolycosa Doleschall 1859 (Araneae: Pisauridae) Author Jäger, Peter text Zootaxa 2011 3046 1 38 journal article 46245 10.5281/zenodo.278844 da2ca486-83fa-4e10-99eb-f3374d9a2a51 1175-5326 278844 Nilus O . Pickard-Cambridge 1876 Nilus O . Pickard-Cambridge 1876 : 596 , pl. 60, fig. 13 (description of the genus, including only the new species N. curtus ). Titurius Simon 1884: 329 (description of the genus, preoccupied in Coleoptera , Titurius Pascoe 1875 ). Thalassius Simon 1885 : 13 (nom. nov. pro Titurius Simon 1884 ). syn. nov. Note. The genus Nilus O . Pickard-Cambridge 1876 was described based on four juveniles from marshes in Alexandria, Egypt . It seems that none of the taxonomists that subsequently added species to this genus was aware of the vague species concept and genus definition proposed by O . Pickard-Cambridge (1876) . Nilus is here recognised as senior synonym of Thalassius (see note under N. curtus below). Consequently, the following valid species are formally transferred from Thalassius to Nilus : Nilus albocinctus ( Doleschall 1859 ) comb. nov. , Nilus esimoni (Sierwald 1984) comb. nov. , Nilus jayakari (F. O . Pickard-Cambridge 1898) comb. nov. , Nilus kolosvaryi (Caporiacco 1947) comb. nov. , Nilus leoninus (Strand 1916) comb. nov. , Nilus majungensis (Strand 1907) comb. nov. , Nilus margaritatus (Pocock 1898) comb. nov. , Nilus massajae (Pavesi 1883) comb. nov. , Nilus paralbocinctus ( Zhang, Zhu & Song 2004 ) comb. nov. , Nilus phipsoni (F. O . Pickard-Cambridge 1898) comb. nov. , Nilus pictus (Simon 1898) comb. nov. , Nilus pseudoalbocinctus (Sen, Saha & Raychaudhuri 2010) comb. nov. , Nilus pseudojuvenilis ( Sierwald 1987 ) comb. nov. , Nilus radiatolineatus (Strand 1906) comb. nov. , Nilus rossi (Pocock 1902) comb. nov. , Nilus rubromaculatus (Thorell 1899) comb. nov. Additionally, the following nomina dubia are transferred from Thalassius to Nilus : Nilus araneoides (Strand 1913) comb. nov. , Nilus basimaculatus (Strand 1907) comb. nov. , Nilus fimbriatus (Walckenaer 1837) comb. nov. ( type specis of Thalassius following Sierwald 1987 : 56; contra Platnick 2011 ), Nilus guineensis (Lucas 1858) comb. nov. , Nilus leo (Strand 1907) comb. nov. , Nilus perincertus (Caporiacco 1947) comb. nov. One species is transferred from Pisaura to the genus Nilus : N. decoratus ( Patel & Reddy 1990 ) comb. nov. Type species. Nilus curtus O . Pickard-Cambridge 1876 . Species removed from the genus. Nilus ornatus Berland 1924 is transferred to the genus Dendrolycosa (see below). Diagnosis and distribution. See Sierwald (1987: sub Thalassius )