120 PROCEEDINGS OF THE ACADEMY OF [1881. 



the snoTit, across the lower pai't of the eye, cheeks and opercles, 

 terminating at about the middle of the length of the operculum ; 

 this band bordered above by a narrower brown band. 



A single specimen. Lower California, probably from the Gulf. 



Length 1-88 in. Length of head 0-27 in. Greatest depth 

 0'19 in. Snout to anal spine TIO in. 



The peculiar vitta upon each side of the head at once dis- 

 tinguishes this species from tiie two other described forms. 



Microdesmus dipus, Giinther. 



Trans. Zool. Soc, 1864, p. 26. 

 A single specimen of this rare species was obtained at La Paz, 

 near low-tide level. 



Hemiramphus uaifasciatus, Ranzani. 

 D. 14. A. 16. 



With some hesitation I refer two specimens taken in Las 

 Animas Bay, Gulf of California, to this species rather than to 

 H. rosse J. & G. The proportion of the jaw to the length of 

 the body, as well as the number of dorsal rays, agree with 

 unifasciatus. 



On each side of the median line of the back a row of elongated 

 spots of dark greenish tint, one on each scale, forms a narrow 

 band, and between these bands is a median series of dark spots 

 formed by thickly aggregated black dots. Between the narrow 

 dark-green band and the lateral band similar close aggregations of 

 dark spots form a series of spots, elongated transversely. The 

 silvery lateral band is bordered above by a narrower greenish 

 stripe. 



