﻿OPHIOGLYPHA LUTKENII. 



47 



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

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

 of Norway^, Newfoundland, and even from the high latitude of Welling- 

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

 to eighteen fixthoms (Liitken). Forbes's remark, that the papillas at the 

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

 this species is his 0. fasciculata. 



LIST OF SPECIMENS. 



Ophioglyplia Ltitkenii Ltman. 



OpMoghjplia Liltkenii Lym.\n. Proceed. Boston Soc. Nat. Hist., YJl. p. 197. 



Special Harks. — Mouth-papillae very sharp ; no papillse on the arm 

 outside those along the notch of the disk ; papillse along the notch of 

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



Description of a Sptecimen. — Diameter of disk, IS""- ; outer edge of 

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

 ■without spines, 3.5"""- ; 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-papillfe like thorns ; a bunch of 

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

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

 pores. Teeth al^out nine ; long, narrow, flat, rather sharp, arranged 

 sometimes in single, sometimes in double ro-ws. Mouth-shields shield- 



