NO. 7 ginsburg: new species of gobioid fishes 121 



comparatively large scales. The nearly vertical mouth is more extreme 

 in its position than in any known species of its genus. In the position 

 of the mouth it resembles most nearly JMicrogobius signatus Poey, and 

 it has an antedorsal ridge like the older species. However, it has notably 

 smaller teeth, larger scales, and fewer fin rays and it is evidently not 

 closely related to signatus. Because erectus has some important char- 

 acters more extremely developed than any of its congeners, and in 

 general, because of the very distinctive combination of all characters, 

 its precise affinities are not patent. 



