ECHINODERMS FROM GREENLAND — CLARK 427 



XXVII. Francis Joseph fiord; August 4, 1936. 



XXVIII. Mouth of Grant fiord, Payer Land; 1-i fathoms; August 

 5, 1939^ 



XXIX. Off Cape Hold-with-Hope ; 23-40 fathoms; Walter W. 

 Kemp, August 6, 1939. 



XXX. (ireenhmd. 



Note. — The catalog numbers of the specmiens follow in parenthe- 

 ses the Koman numerals representing the localities. 



OPHIUROIDEA 



OPHIACANTHA BIDENTATA (Retzius) 



Localities.— Ill (E.5785, E.5808). VI (E.5770). XI (E.5873). 

 XII (E.5843, E.5855, E.5859, E.5860, E.58G1). XIX (E.5724, E.5725, 

 E.5726). XX (E.5703, E.5718, E.5719). XXI (E.5712). XXIX 

 (E.5706). Thirty-eight specimens. 



AMPHIURA SUNDEVALLI (Muller and Trosche!) 



Locality. — XX (E,5722). One specimen. 



OPHIOPHOLIS ACULEATA (Retzius) 



Localities.— Ill (E.5752, E.5784, E.5805). XII (E.5842). XVI 

 (E.5866, E.5867). XVIII (E.5704, E.5705). XX (E.5701, E.5715, 

 E.5716, E.5717). XXI (E.5713, E.5714). Thirty-six specimens. 



Notes. — The largest specimen from locality III has the disk 22 

 mm. in diameter and the arms 95 mm. long; there are eight arm 

 spines proximally. 



OPHIURA SARSII Liitkeji 



Localities.— Ill (E. 5764, E.5804, E.5807). V (E.5742). VI 

 {E.57G9). IX (E.5862). XI (E.5868, E.5859). XV (E.5768, 

 E.5777, E.5783, E.5790). XXI (E.5723). Eighteen specimens. 



Notes. — One of the specimens from locality V has the disk 25 mm. 

 in diameter. 



OPHIURA ROBUSTA (Ayres) 



Localities.— 1 (E.5823). 11 (E.5761). Ill (E.5738, E.5739, 

 E.5740, E.5747, E.5748, E.5750, E.5762, E.5763, E.5806, E.5829, 

 E.5830). IV (E.5746). V (E.5741). VI (E.5749, E.5779, E.5780). 

 VIII (E.5831). IX (E.5864, E.5876, E.5879). XI (E.5870, E.5871, 

 E.5877). XII (E.5857, E.5858, E.5875). XV (E.5771, E.5772, 

 E.5773, E.5774, E.5775, E.5776, E.5782, E.5786, E.5787, E.5788, 

 E.5789, E.5791, E.5792, E.5793, E.5796, E.5797, E.5798, E.5800, 

 E.5801, E.5802, E.5811, E.5812, E.5813). XVI (E.5865). XVII 

 (E.5818). XXII (E.5836). XXVII (E.5834). XXIX (E.5708, 

 E.5709). Three hundred and fifty-five specimens. 



