1898-1902. No. 13.] ECHIN ODERMATA. 15 



arm or more. The specimens examined by me, however, have not been 

 entirely without carinal spines; on at least one of the arms there has 

 been an indication of this row of spines. The upper row of marginal 

 spines is also subject to great variations. The spines in the under 

 marginal row occur singly or in pairs; and the cases were extremely 

 rare in which I found three spines on one plate. Doderlein has found 

 as many as 5 spines, however, on one plate. The adambulacral plates 

 have from 1 to 4 papillae, most frequently 2 or 3. As already shown 

 by MoRTENSEN (28, p. 70) and Doderlein, the dorsal side of the disc 

 and arms is closely set with small forcipiform pedicellarise ; whereas 

 along the ambulacral groove, forficiform pedicellariae are scarce. 



Asterias panopla is new to the waters west of Greenland. The 

 species has hitherto only been found in the Greenland Sea, the Nor- 

 wegian Sea, the Barents Sea, the Kara Sea, and the Siberian Arctic 

 Ocean, where it is found at numerous stations between the east coast 

 of Greenland (Henry Land) and the eastern part of the Taimur Peninsula. 

 The bathymetric distribution of the species is from 9 to 475 m. Its 

 principal distribution is in the cold area, but it is often met with far 

 down in the warm area'. 



OphiuToidea. 

 Ophiura, sarsi, Lutken. 



(P). 1, figs. 6-8). 

 Locality. 

 Aug. 4, 1898. Upernivik harbour, 26— 6m. 

 July 21, 1899. Winter harbour, Havne Fjord; about 16 m. 

 July 19, 1899. - — — ; — 12 „ 



July 18, 1900. — - — ; — 60 „ Small 



stones and clay. 

 July 21, 1900. Winter harbour, Havne Fjord; about 60 m. Smalt 



stones with calcareous algae. 

 July 22, 1900. Winter harbour, Havne Fjord; about 60 m. Small 



stones. 

 July 26, 1900. West side of the mouth of Stor Valley ; about 20 m. Clay. 



The bottom temperature at suoli of ttie localities where this species is found, 

 as have had their temperature measured, is as follows : 



"Vega", —1.4 to —1.7 C; "Jermak", -0.6 to —1.3 C; "Willem Barents", 

 — 1.2 C; the Russian expeditions to Spitzbergen, —0.7 to —0.8 C; "Olga", 

 1.7 C; "VOringen", -1.4 to 1.6 C 



