MYXINE ACUTIFRONS. 347 



from eleven to thirteen caudal pores, on each side. Abdominal keel 

 prominent. 



The color is dark brown to blackish, leaden on the mucous coverino- 

 lighter on the ventral surface. 



The specimen described by Girard was from Grand Manan ; -many of the 

 specimens at hand were obtained in the same locality. , A specimen was 

 taken by the " Blake " in Lat. 41° 32' 50" N., Lon. 65' 55' W. at a depth 

 of 524 fathoms, and another off the coast of North Carolina, in Lat. 34° N., 

 at a depth of 178 fathoms. Tliose from Grand Manan were taken from the 

 mud at 30 fathoms. Another locality is Eastport, Maine. 



Myxine acutifrons sp. n. 



Plate LXVIILfig.6. 



The shape in this species is similar to that of M. anstralis Jon. but is a 

 little less slender ; the coloration is nearly the same. The abdominal pores 

 are less numerous ; there are not so many teeth in each series ; and tlie 

 labrum is acute and resembles one of the barbels to some extent. Com- 

 monly there are eight teeth in the outer series, sometimes seven or nine, 

 and nine, sometimes eight, in the inner ; all are shorter and stouter than 

 those of 31. ausiralis. The bases of the anterior two of each series are 

 confluent. Dorsal origin little forward of the vent ; dorsal rays eiglity- 

 one to ninety-three. Anal, like the dorsal, deeper backward, with forty- 

 five to forty-six rays. Tail compressed, posterior margin a broad curve. 

 Pectoral pores thirty-two to thirty-four, abdominal fifty-eight to fifty-nine, 

 and caudal eleven to thirteen, on each side. 



On the upper portions the color is dark brown, more or less leaden on 

 the mucous covering ; on the ventral surface it is lighter, especially so in 

 young. 



From the collections it would appear that this species was much more 

 abundant than M. australis at Sandy Point, Straits of Magellan ; at Puerto 

 Bueno again it was abundant and the only species taken ; while at Port 

 Famine this species was not obtained but 31. australis was particularly 

 abundant. The localities mentioned are not very widely separated. 



