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198 PHOCEECmGS of the national museum vol.101 



two genera to be synonyms of each other. Since the name Conspicuum 

 appears first in the original paper by Bhalerao, the proper designation 

 of the genus is Conspicimm, and all species assigned to the genus 

 Skrjahinus must be transferred to it. 



Travassos (1944) recognized the unwieldiness of the assemblage of o 

 species assigned to the genus Lyperosomum Looss, 1899. Being 

 unaware of the separation of the genus into three genera by Strom in 

 1940, Travassos proposed the genera Olssoniella and Orthorchis in i 

 addition to the genus Lyperosomum for the reception of this group ) 

 of species. Travassos designated the species longicauda of Rudolphi, , 

 1809, as the type of the genus Lyperosomum^ and characterized the 

 members of the genus in an almost identical way to that proposed by 

 Strom. He further declared his genus Oswaldoia ( 1919) to be a direct t 

 synonym of Lyperosomum and transferred those species assigned to ) 

 that genus to Lyperosomimi. Sixteen species were listed as belonging i 

 to the genus. 



For a second group of species formerly included in the genus Lyper- 

 osomum.^ Travassos (1944) erected the genus Olssoniella^ with O. ols- 

 soni (Railliet, 1900) as the type. The genus Olssoniella is readily 

 recognized as being identical with the genus Brachylecithum Strom, 

 1940. This identity is further evidenced by the fact that the species 

 ■filumi, the designated type of the genus Brachylecithwm^ is recognized 

 as being congeneric with the species olssoni by its inclusion in the list of 

 species given for the genus Olssoniella by Travassos. Travassos in- 

 cluded 19 species in the genus Olssoniella. These species are hereby 

 recognized as belonging to the genus Brachylecithimi. 



For the reception of a third group of species previously included in 

 the genus Lyperosomum, Travassos (1944) erected the genus Orthor- 

 chis. Orthorchis {= Lyperosomum) lari (Travassos, 1917) was des- 

 ignated as the type, while six additional species were assigned to the 

 genus. Among these species appears corrigia of Braun, 1901, the type 

 species of the genus Corrigia as created by Strom, 1940. The quite 

 similar diagnoses for the two genera {Corrigia and Orthorchis) to- 

 gether with the recognized congeneric relationship of the two type spe- 

 cies renders the genus Orthorchis Travassos, 1944, a synonym of 

 Corrigia Strom, 1940, and hence necessitates the transfer of the species 

 included in the genus Orthorchis by Travassos to the genus Corrigia. 



We have no hesitancy in restricting the genus Eurytrema to those 

 species now allocated to that genus by Bhalerao, 1936, Strom, 1940, and 

 Travassos, 1944. As emended by Strom, 1940, we recognize the genus 

 Lubens Travassos, 1920. The genera Concinnu?n Bhalerao, 1936, as 

 emended by Travassos, 1944, and Conspicuum {^Skrjahinus) 

 Bhalerao, 1936, as emended by Strom, 1940, and Travassos, 1944, con- 

 stitute valid generic groups. Furthermore, we recognize the genus 



