152 PROCEEDINGS OF THE ACADEMY OF [April, 



caudal, with fine white dots. Upper dorsal edge, most of anal, 

 and all of ventral and pectoral rich orange. In life each scale on 

 sides with the pale or median areas of the preserved fish brilliant 

 metallic greenish -blue. 



These fish live in polluted shallow water, not roving about, and 

 where the bottom is a dark ooze. The larger females were found in 

 the deeper shoals in schools, usually about sandy bottoms. They 

 were active, constantly moving about. In life much paler. Useppa 

 Island. 



5. Cyprinodon mydrus Cioode and Bean. 



Lives on sandy bottoms in shoals. Though shy during the day 

 they were easily captured at night with a light. Like the "sand 

 perch" the dark vertical bands are conspicuous features at night 

 as viewed from above with the aid of an artificial light. The bands 

 disappear, however, as soon as the fish are lifted from the water. 

 In life the spots on the head and trunk are very brilliant golden. 

 Useppa Island. 



6. MoUienisia latipinna Le Sueur. 



Local in polluted water with bottom of dark ooze. Useppa Island. 



7. Strongylura notata (Poey). "Needle Fish." 



A number of young examples without scales. Found on the sur- 

 face is shoals. Useppa Island. 



8. Hyporhamphus roberti (Valenciennes). "Bally-hoo." " Hoiuid-flsh." 



When fresh end of mandible deep blood-red. Dorsal and anal 

 lobes and most of caudal blackish, and former conspicuously con- 

 trasted with whitish bases. Sides of body and eye brilliant silvery- 

 white. Back pale olive-green, each scale with broad dark olive 

 submarginal streak. Pectoral grayish. Ventral white. Length 

 222 mm. Useppa Island. 



9. Hemiramphus brasiliensis (Linne). 



Ocean off Biscayne Bay. Although Jordan recently contends 

 H. balao Le Sueur is distinct I have been unable to distinguish it 

 among my collections. 



I have seen this species, while in the Florida Keys in 1904, rise 

 out of the water and with a peculiar sculling motion of the tail, all 

 the time the fish appearing nearly vertical in the air, move along the 

 surface a hundred feet or more. Mr. Hebard recently saw num- 

 bers of the preceding also rise out of the water, as his boat pushed on, 

 and elevate their bodies about 60° and move off in similar manner 



