OPHIOGLYPIIA LiJTKENIL 



47 



many specimens from Massachusetts Bay, Grand Manan Island, Green- 

 land, and Denmark. It is also known from the Faroe Islands, the coast 

 of Norwji^v, Newfoundland, and even from the high latitude of Welhng- 

 ton Channel. It has been taken from low-water-mark (A. E. Verrill) 

 to eighteen fathoms (Liitken). Forljes's remark, that the papilla} at the 

 base of the arm are irregularly arranged, makes it next to certain that 

 this species is his O. fasciculata. 



LIST OF SPECIMENS. 



Ophioglypha Liitkenii Lyman. 



Ophioglypha LUtkenii Lyman. Proceed. Boston Soc. Nat. Hist., "\TI. p. 197. 



Special Maries. — Mouth-papillns very sharp ; no papillae on the arm 

 outside those along the notch of the disk ; papilki> along the notch of 

 the disk flat, thick, blunt, crowded ; arms strongly arched above. 



Description of a Sijecimen. — Diameter of di.^k, 18""°- ; outer edge of 

 mouth-shield to outer corner of opposite mouth-slit, 8.5""°' ; width of arm 

 Avithout spines, 3.o°""- ; length of arm, 90'°'°' ; distance from outer side of 

 mouth-shield to inner points of mouth-papillae, to that between outer 

 corners of mouth-slits, 4.8 : 3.9. Mouth-papilhB like thorns ; a bunch of 

 about ten at the point of the jaw, and two or three scattered ones on 

 each side, placed aljove the scales of the innermost pair of tentacle- 

 pores. Teeth about nine ; long, narrow, flat, rather sharp, arranged 

 sometimes in single, sometimes in double rows. Mouth-shields shield- 



