6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 60 



Fowler.'' Below are given the distinctive characters claimed for 

 these species. The barred forms show large variation in the num- 

 ber and width of the dark cross bands, however, and the alleged 

 differences in dentition should be verified. It has been suggested 

 that all are variants of the East Indian E. polyzona Richardson, 

 but the teeth in that species differ considerabl}^ from those of the 

 Hawaiian forms. 



In E. ysalion Jenkins, the jaws close completely; the lateral teeth 

 of the upper jaw are in but one series, and the dark cross bands are 

 narrower than the interspaces. 



In E. obscura Jenkins, the mouth nearly closes, the lateral teeth 

 above are in two series, and the obscure dark bands are very much 

 wider than the narrow interspaces. 



In E. zonata Fowler (= vincta Jenkins), the mouth does not 

 fully close ; the lateral teeth above are in one series ; and the sharply 

 defined black bands are about as wide as the speckled or mottled pale 

 interspaces. 



In E. zonophaea Jordan and Evermann, the mouth does not close, 

 the lateral teeth above are in a single series ; and the dark bands are 

 about as wide as the pale, much speckled interspaces. This form is 

 close to E. zonata and is probably the same, but for the present we 

 may accept all four, rather than exchange one doubtful opinion for 

 another. The oldest name of all is zonata of Fowler, 1900. 



In E. sauvagei Fowler, the jaws close comj^letely, the lateral teeth 

 above are in one outer series and three series within ; vomerine plaque 

 large, of three or four series; body with 24 dusky crossbands Avith 

 diffuse edges, and about as broad as interspaces; angle of mouth 

 black. This species seems midway between L. tr'itor and L. zor.-ata. 



In E. folyzoiia there are no canines in either jaw; the arrange- 

 ment of the teeth is much the same as in the above species, but all 

 are reduced to molars, and the teeth on the back of the vomer are 

 fewer and somewhat separated. They are scattered across the whole 

 width of the roof of the mouth, however. The lateral teeth above are 

 in two series, and the dark brown crossbands are very much broader 

 than the yellow interspaces. None of the Hawaiian morays seen by 

 me can belong to this species although Fowler records it from 

 Hawaii.^ 



Genus GYMNOMURAENA Lacepede 



{Type. — Gymnothorax zebra Shaw, 1797.) 



Another moray generally included in Echidna, but differing con- 

 siderably from the others, was called Gymnothorax zebra by Shaw, 

 and is the type of Gymnomuraena Lacepede as restricted by Kaup. 



• Pioc. Acad. Nat. Sci. Phila., vol. 64, p. 30. 1912. 

 ' Klcni. 



