112 Thirty-second Report on the State Museum. 



summit of the maxillary ring are bunches of short, conical, pointed papillae, 

 arising from low, marginal elevations, with the arrangement as follows : on 

 the middle line above, a small bunch of four or five papillae ; on the latero- 

 dorsal margin a bunch of ten or twelve arranged in a double series ; on the 

 latero-ventral margin a bunch composed of the same number of papillae, but 

 not arranged in series ; a median ventral bunch, six papillae in double series ; 

 half way between the last and the latero-ventral, a small bunch, three to five 

 papillae. The lateral papillae, above and below, are about one-third as long 

 as the antennae, the others a little shorter. Aside from these papillae, the 

 surface of the maxillary ring is quite smooth. On the ventral surface of the 

 basal ring, near the posterior margin, are five small elliptical elevations or 

 calluses, a median and two lateral, equally distant from each other. The 

 notes made on the living forms make mention of a small, median, triangular 

 papillae, just in front of the antennae. It cannot be demonstrated in alcoholic 

 specimens. 



Jaws (fig. 25) : in color varying from light to dark horn-color ; about four- 

 teen strong, sharp teeth. 



Buccal segment double the length of the second segment, equal to the 

 fourth. 



Tentacular cirri (fig. 23) arise from stout and long basal articles ; upper 

 posterior cirrus longest, reaching back to the middle of the third segment, or 

 sometimes to its posterior margin ; the lower posterior cirrus and the upper an- 

 terior equal, from one-fourth to one-third shorter than the longest ; lower ante- 

 rior cirrus shortest ; viewed from below, this cirrus is seen to arise much below 

 the others. 



The first two setigerous segments have no dorsal rami (fig. 26), but the 

 cirri, iingulae, and ventral ramus have nearly the same form as on the seg- 

 ments following. From the fourth to the twentieth-twenty-fifth segment 

 (fig. 27), the dorsal ramus is small, conical, distinct from its lingula ; the 

 lingula is longer than the dorsal ramus, broad at base, tapering gradually, 

 apex bluntly rounded, somewhat compressed ; the dorsal ramus has two lips, 

 anterior and posterior ; anterior small, of uniform diameter, directed upward ; 

 posterior larger than anterior, shaped much like upper lingula, but smaller, 

 directed outward ; the lower ramus has also two lips, placed one behind the 

 other, stout, bluntly conical, anterior turned outward, posterior a little down- 

 ward ; the inferior lingula is a little stouter at base than the lips of the ventral 

 ramus, otherwise about the same form and size ; the ventral cirrus is longer 

 than the dorsal, fusiform, reaches to the middle of its lingula, arising some dis- 

 tance below it. 



Further back the basal part of the feet gains in length (fig. 28) ; the dorsal 

 cirrus becomes shorter ; the upper lingula longer, conical, with less diameter ; 

 the anterior lip of each ramus becomes gradually smaller, and finally disappears; 

 the lower lingula is greatly reduced in size ; the ventral cirrus recedes from its 

 lingula, becoming minute, conical. 



