MACRURT'S TRICHIURUS. 215 



Head clingy white, in life red to purple; muscular portions of body and 

 tail i-eddish brown ; belly blackish ; branchial chamber and abdomen lined 

 with blackish to silvery. 



station. Latitude. Longitude. Depth. Temperature. Bottom. 



3431 23° 59' N. 108° 40' W. 995 fuUioms 37° F. Lt. bro. il. Ulub. 



Macrurus trichiurus .?p. n. 



Br. r. 7; D. 11 +?; V. 8. 



The shape in this species is much like that of M. com'err/cns, from which 

 it may be distinguished by the smaller number of rays in the ventrals, tlie few 

 serrations on the second dorsal spine, and by the great length and slender- 

 ness of the caudal section. Body compres.sed, caudal extremity very slender, 

 threadlike. Head two thirteenths of the total length. Snout broader than 

 the iuterorbital space, the ridges of the top diverging forward to the two prom- 

 inent lateral angles; median angle protruding, apex equidistant from orbit 

 or maxillaries ; length equal to three fif tlis of that of the orbit. Orbit large, 

 two and two thirds times in the length of the head, half of the iuterorbital 

 space. Suborbital ridge prominent, sharp, subtending the entire orbit. Mouth 

 medium ; maxillary extending below two thirds or more of the orbit. 

 Teeth small, equal, in villiform bands. Dorsal origin above the base of the 

 pectoral; first spine short; second spine longest with a filament and three 

 or four spinules. Second dorsal low, feeble. Origin of anal slightly back- 

 ward of the hind end of the base of the first dorsal. Vent a short distance 

 forward of the first anal ray, opposite the midlength of the ventral fins. 

 Ventrals small, originating somewhat farther backward than the dorsal, 

 below the bases of the pectorals. Pectorals small, two thirds as long as the 

 head. Scales small, anteriorly in the median line each bears a short spine 

 and directly behind this a larger one extended out and backward beyond 

 the scale margin. Toward the back some scales have an additional, and 

 shorter, row of spines on each side of the median, the three rows diverging 

 backward. 



Black ; muscular portions lighter, reddish brown. 



