PITHOEA. 225 



Ju7ie 20. 



This day I examined two nondescript 

 species of fish, belonging to the genus 

 Ci/primis. The first is called Stemma 

 {Cyprinus Grislagine). Its head is oblong 

 and obtuse, black on the top, silvery at 

 the sides, and white beneath. The back 

 of the fish is also blackish ; its sides of a 

 shining silvery hue; the belly white. Eyes 

 round and white, tha'ir ir ides dotted, espe- 

 cially the upper part, which is moreover 

 marked with a large verdigrise-green spot 

 just above the black pupil. Nostrils round, 

 accompanied with a pair of smaller roundish 

 orifices. Mouth without teeth. Tongue 

 blunt. Lower jaw a little the shortest; 

 that part which covers the gills consisting 

 of five connected, obtuse, not spinous, rays 

 on each side. Dorsal fin solitary, of ten 

 rays, the first of which is very short and 

 undivided ; the second twice as long, but 

 likewise simple ; each of the rest twice 

 forked, except the tenth, which is only ob- 

 Q 



