312 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [102] 



brown ring, very strongly and sharply toothed around the outer portion 

 of the edge, and usually with one tooth larger and longer than the rest 

 on the middle of the outer margin; inner margin with much smaller, 

 very acute teeth, of unequal size. The teeth are gold-colored at tip. 



Larger suckers of the sessile arms are very oblique, with the rim 

 strong, dark brown, bearing large, strong, sharp, much incurved, un- 

 equal teeth on the outer side of the rim ; the inner margin is entire. 

 The ventral arms bear about 41 similar suckers, exclusive of the minute 

 ooes close to the end ; the largest ones are situated beyond the middle 

 of the arm. The lateral arms bear about the same number of large 

 suckers, with numerous minute ones at the tip. The dorsal arms bear, 

 each, about 30 suckers, exclusive of the small terminal ones. 



The 22d sucker of the left ventral arm (Plate XVI, figs. 8, 8«) has a 

 strong, somewhat elliptical rim, with seven strong and very acute in- 

 curved teeth on the outer side, and with the opposite margin on the in- 

 ner side smooth for more than a third of the circumference. The median 

 tooth on the outer margin is decidedly larger and longer than the others, 

 and abruptly bent inward above its base. It is elongated and gradually 

 tapered to the very acute tip, but thick and channeled externally at its 

 base. To the right and left of this are three similar, but smaller, un- 

 equal teeth, all strongly curved inward toward the inner margin, but not 

 convergent to the center. Of these, the second from the central tooth, 

 on each side, is the largest, and the third is the smallest. Between the 

 latter and the smooth inner edge there is a small rounded lobe, or blunt 

 tooth. Peduncle broad'toward the rim, tapering rapidly to the slender 

 base. Outer sides of rim much higher than inner. Greater diameter, 

 10 rara ; lesser, 7 ram ; greater interior diameter, 7 mm ; total height, 13 ram ; 

 longest tooth, 2.5 mm . 



The exposed portion of the upper mandible is black; the point is 

 strongly curved, acute, with a smooth cutting edge, separated from the 

 inner lobe by a deep, agute notch; inner lobe or edge of alse thin, 

 broadly rounded, with a slightly rounded, uneven edge. Length of 

 mandible, 29 ram ; distance from bottom of notch to tip, 10 :n,n ; internal 

 breadth between lobes, 8 mm . 



The lining membrane of the palate (Plate XVI, fig. 2) is pale, trans- 

 lucent, covered with rather large, whitish, translucent teeth, variable 

 in form and size, but mostly rather broad at base and tapering to an 

 obtuse tip ; some are more slender and acute. Xo granules were de- 

 tected on the membrane. 



The odontophore (Plate XVI, figs. 3-7) was too much injured to show 

 its general form, but it appeared to resemble that of A. Harvey i. The 

 lateral membrane was broad in the middle, translucent, white. Xo 

 plates outside the lateral teeth could be detected. The teeth all have 

 slender, acute tips. The median teeth have three points of nearly equal 

 length ; the inner lateral ones have two points, the outer one somewhat 

 shorter and smaller than the other ; the two outer lateral teeth are sim- 



