Zoogeographical Investigations in Southern Greenland. 315 
164. Ophioscolex glacialis M. Tr. 
Th. Mortensen, Gronlands Echinodermer 1913 (1914), p. 361. 
Bredefjord St. 55, 310—330 m., 1 spec. 
From W. Greenland hitherto only known from 2 localities (661%4°— 
71° N.). 100—1800 m. 
165. Gorgonocephalus Lamarckii M. Tr. 
Th. Mortensen, Gronlands Echinodermer 1913 (1914), p. 364. 
Bredefjord St. 121, 700m., 2 spec. 
From W. Greenland hitherto only known from 2 localities (64144°— 
651° N.). 75—775 m. 
Echinoidea. 
166. Strongylocentrotus droebachiensis O. Fr. Miill. 
Th. Mortensen, Grenlands Echinodermer 1913 (1914), p. 365. 
Kvanefjord St. 4, 20,5—34 m., 1 spec.; St. 6, 37—45 m., 1 spec.; 
St. 9, 22—24 m., 3 spec.; St. 25, 115m., 2 spec. — Bredefjord 
St. 32, 35—37m., 3 spec.; St. 33, 100—220 m., 5 spec.; St. 37, 20— 
30 m., 2 spec.; St. 40, 170—180 m., 2 spec.; St. 44, 165—190m., 
1 spec.; St. 46, 20—30 m., 3 spec.; St. 48, 3 sped; St. 68, 60—95 m., 
2 spec.; St. 70, 225—290m., 1 spec.; St. 79, 30—50m., 5 spec.; 
St. 88, 40—70m., 2 spec.; St. 92, 50—90m., 1 spec.; St. 103, 90— 
100 m., 2 spec.; St. 109, 125—140 m., 2 spec.; St. 127, 10—15 m., 
3 spec.; St. 134, 85—140m., 6 spec. — Tunugdliarfik St. 141, 35— 
70m., 1 spec. — Skovfjord St. 143, 65—90m., 2 spec.; St. 144, 
250—300 m., 1 spec.; St. 145, 10—35 m., many houndreds, filled about 
the whole of the dredge; St. 152, 80—120 m., 1 spec.; St. 155, 220 
(240)—400 m., 1 spec. 
Extremely common at W. Greenland. Littoral — 1170 m. 
Holothurioidea. 
167. Myriotrochus Rinkii Stp. 
Th. Mortensen, Grenlands Echinodermer 1913 (1914), p. 318. 
Bredefjord St. 127, 10—15m., 5 spec. — Skovfjord St. 136 
(the harbour of Narssak), 6m., 1 spec. 
Rather common at W. Greenland. Littoral — 650m. 
168. Chirodota laevis Fabr. 
Th. Mortensen, Grenlands Echinodermer 1913 (1914), p. 317. 
Skovijord St. 136 (the harbour of Narssak), 6m., Several spec. 
Not rare at W. Greenland. Littoral —380 m. 
