348 DEEP SEA FISHES. 
Myxine glutinosa. 
Myzxina glutinosa Linné, 1754, Mus. Ad. Fridr., I, 91, Pl. 8, fig. 4. 
Myzxine glutinosa Linn., 1758, Systema, ed. 10, I, 650. 
Gastrobranchus coecus Bloch, 1795, Ausl. Fische, 1X, 67, Pl. 413. 
Plate LX VIII. fig. 5. 
A smaller number of teeth and a smaller number of pores distinguish 
this species from the others. The form is comparatively stout, and the lab- 
rum is short, blunt, and rounded. In the upper series there are most often 
eight teeth in each (sometimes seven or nine in one series or the other), 
and in the inner series there are either eight or nine (sometimes ten). The 
anterior two of each series are usually confluent in their bases. The pecto- 
ral pores vary from twenty-five to twenty-eight, the abdominal from fifty- 
three to fifty-seven, and the caudal from eleven to thirteen. A specimen at 
hand has eighty-eight dorsal and fifty-three anal rays. 
The color is dark brown to brownish, with more or less of leaden, when 
freshly placed in alcohol, and varies in regard to the amount of light color 
along the abdominal fold and the fins. 
The specimens examined have the localities Denmark, Norway, Great 
Britain, Liverpool, Europe, and three of them, purchased from C. L. Salmin, | 
are labelled “Triest.” These last tend to establish Bloch’s conclusion re- 
garding the presence of Myxine in the Mediterranean, based on Aristotle’s 
statement in respect to Pholis (Hist. Anim., Book IX. chap. 25), a conclu- 
sion afterward discredited by Johannes Miiller. “The mucous substance 
which the pholis emits forms around it, and resembles a chamber” is a 
statement that is sure to recall that of Kalm concerning the behavior of a 
living J. giutinosa when placed in a vessel of water. This species, accord- 
ing to Vaillant, was taken by the “ Travailleur” off the coast of Portugal at 
a depth of 251 fathoms. 
HOMEID &. 
Bdellostomide Gill, 1872, Arr. Fam. Fishes, 25. 
Bdellostomatide J. G., 1882, Bull. 16, U. S. Mus., 967. 
Heptatremide Gill, 1894, Mem. Amer. Acad., VI, 129. 
This family is so closely allied to the Myxinide as hardly to be entitled 
to a rank higher than that of a subfamily; the numbers of gills and of gill 
apertures, six or more of each, are the principal distinguishing features. 
