2 8 NATURAL HISTORY BULLETIN. 



more curved. The latter has true tentacle-scales and the 

 disk scales are larger and more regular. 



Amphipholis goesi Ljung. 



Amphipholis goesi Ljungman, Dr. Goes Oph., Kong. Acad., 1871, pp. 

 635, 648. Verrill, Expl. of Albatross in 1883, Annual Rep. U. S. 

 Fish Com. for 1883, p. 549, 1885. 



Amphiura goesi Lyman, Voy. Challenger, Zool., V, pp. 125, 146, 

 1882. 



A single mutilated specimen, without the upper side of the 

 disk, was obtained. 



Mouth papillae three, forming a close series, the outer one 

 flat, much the largest, as broad as the other two together, so 

 that it occupies more than half the length of the edge of the 

 jaw; the inner two are thick, obtuse, angular. Oral shields 

 rather large, top-shaped, about as broad as long; the outer 

 end is strongly convex, the sides distinctly incurved, forming 

 an acute inner angle. Lateral oral shields crescent-shaped, 

 rather large and thick, with concave side next the oral shields. 

 Tentacle-scales two. oblong, rather stout, blunt, nearly equal. 



Arms long, tapering but little; under arm-plates rather 

 large, thick, in contact with each other, about as long as 

 broad, five-sided with rounded corners; the outer edge is 

 strongly convex and often slightly angulated and prominent 

 in the middle, or has a slightly raised umbo, the inner end is 

 angulated and usually has a small, rough, median projection 

 or lobe, where it articulates with the preceding one. 



Arm-spines three, short, tapered, subequal. about half the 

 length of arm-joint. Dorsal arm-plates in contact with each 

 other; thick, transversely subelliptical. distinctly wider than 

 long, with the outer end broadly rounded, and the inner end 

 obtusely angulated. 



Diameter across the scar left by the disk on the arms, 

 io mm; length of the longest arm (not entire) 35 mm. 



Off Havana, no to 200 fathoms. West Indies, 280 fath- 

 oms (Lyman). Off Cape Hatteras, 14 fathoms (Verrill). 



