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 covering, 
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. Those from Grand Manan were taken from the 
mud at 30 fathoms. Another locality is Eastport, Maine. 
Myxine acutifrons sp. n. 
Plate LX VIII. fig. 6. 
The shape in this species is similar to that of JZ. australis Jen. 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 the 
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 M/. australis. The bases of the anterior two of each series are 
confluent. Dorsal origin little forward of the vent; dorsal rays eighty- 
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 JZ. 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 JZ. australis was particularly 
abundant. The localities mentioned are not very widely separated. 
