Jordan and Evermann. Fishes of North A merica . 2109 



brane, the margin thus formed sometimes incised, producing short, rounded 

 lobes ; first spine highest, its height contained 4f in body, the succeeding 

 spines gradually growing shorter, the sixth contained 11-J- times in body. 

 Height of second dorsal near its middle, 3 in head; dorsal and anal 

 joined by membranes to base of caudal, the anal more broadly joined than 

 the dorsal, attached to basal fifth of lowest caudal ray; caudal rounded 

 posteriorly, its length 4;| in body; origin of anal below first ray of sec- 

 ond dorsal; height of anal a little less than that of dorsal; pectoral 

 extending to a vertical crossing body halfway between anus and origin 

 of anal tin ; length of pectoral 5^ in body, its upper part rounded posteri- 

 orly ; the fifth, sixth, and seventh rays from below elongated, with exserted 

 tips, forming a short lobe. Long diameter of ventral disk 6 in body. 

 Vent slightly nearer to margin of disk than to origin of anal fin. Color 

 bluish slate, lighter along middle of sides; belly and gill membranes 

 whitish ; pectorals, anal, and posterior half of dorsal very narrowly edged 

 with white; rays of first dorsal indistinctly barred. In the following 

 table the measurements of 3 specimens are expressed in hundredths of the 

 length of the body : 



Neoliparis rutteri is closely related to the Atlantic species, Neoliparis 

 atlanticus. It differs from it in the longer head, and the comparatively 

 larger ventral disk. The 2 species differ from all other known species of 

 the genus in having the dorsal spines in the male greatly elevated and not 

 connected by membrane except at extreme base. From N. florae and N. 

 greenij N. rutteri differs also in having a much smaller gill opening and 



