1903.] ON FISHES FROM RIO JANEIRO. . 59 



with the usual ten rows of extremely closely placed punctures, 

 the sutural row short, the intei-stices feebly convex and finely 

 ti-ansversely aciculate ; the undei-side more metallic, the tarsi 

 fvilvous below, mesosternum scarcely raised, its epipleurse smooth; 

 claw-joint simple, tibiae with longitudinal sulcus. 



Hab. Paraguay. 



This species is placed in the genus Leptinotarsa on account of the 

 sulcate tibiae, which have the sulcus extending to half their length ; 

 the colour of the antennae and the slightly convex elytral inter- 

 stices will easily distinguish the species. 



Elythrosph^ra cupreata, sp. nov. 



Ovate, pointed posteriorly, cupreous, variegated with metallic 

 green ; antennae black ; thorax deeply and irregularly punctured ; 

 elytra deeply foveolate punctate, the punctures arranged in rows, 

 cupreous, the suture metallic green. 



Length 10 millim. 



Apterous ; the head finely punctured, with a central fovea, the 

 vertex metallic green, the lowei- portion reddish cupreous ; labrum 

 and palpi black ; antennae rather long, black, the terminal two 

 joints elongate, thickened, the basal joint metallic green ; thorax 

 one-half broader than long, the sides straight, the disc deeply 

 foveolate and partly confluently 2>^^nctured, cupreous, with a 

 metallic green band at each side ; elytra very convex, widened at 

 the middle, the aj)ex pointed, each elyti'on with ten rows of foveas, 

 regularly placed, the sutural and later-al margins green, the disc 

 cupreous ; underside coloured like the upperside, the tibiae metallic 

 green, the tarsi black. 



Hah. Rocco ISTova, Parana, Brazil. 



Of this very distinct species a single specimen is contained in 

 my collection. 



4. On a Collection of Fishes made bj Dr. Goeldi at Rio 

 Janeiro. By C. Tate Regan, B.A. 



[Received April 28, 1903.] 



(Plates YII. & VIII.*) 



The collection of Fishes made at Rio Janeiro by Dr. Goeldi 

 contains examples of one hundred and twenty- five different species, 

 four of which are described below as new to science, one of these 

 belonging to a new genus. As most of the species rej^resented 

 have been recorded either from Rio Janeiro or from not very 

 distant points on the Atlantic coast of S. America, it would be 

 superfluous to give the full list ; in a few cases, however, the 

 occurrence of a species at Rio Janeiro has been thought worth 

 special notice, and the opportunity has been taken to add some 

 notes and to give diagnoses where it seemed useful. Dr. Goeldi 



* For cxpliuiatiou of the Plates, sec p. 68. 



