REPORT ON THE ASTEROIDEA. 675 
Sration 335. North of the Island of Tristan da Cunha. March 16, 1876. Lat. 
32° 24’ 0” §., long. 18° 5’ 0” W. Depth 1425 fathoms. Pteropod ooze. 
Bottom temperature 37°:0 Fahr. ; surface temperature 73°°5 Fahr. 
ITymenaster anomalus. 
Station 343. Off the Island of Ascension. March 27,1876. Lat. 8° 3’ 0” S., long. 14° 
27’ 0” W. Depth 425 fathoms. Volcanic sand. Bottom temperature 40°'3 
Fahr.; surface temperature 80°8 Fahr, 
Pararchaster spinosissimus. 
Plutonaster marginatus. 
Sration 346. Between the Guinea coast of Africa and the Island of Ascension. April 
6, 1876. Lat. 2° 42’ 0” S., long 14° 41’ 0” W. Depth 2350 fathoms. 
Globigerina ooze. Bottom temperature 34°:0 Fahr.; surface temperature 
82°°7 Fahr. 
Styracaster horridus. 
Freyella tuberculata, Also at Station 89. 
II. “ Porcupine” EXPEDITIONS. 
i. 1869 Cruise. 
Sration 8 (1869). Off the west coast of Ireland. Lat. 53° 15’ N., long. 11° 51’ W. Depth 
106 fathoms. Bottom temperature 10°°7 C.; surface temperature 12°°3 C. 
Porania pulvillus. 
Station 18 (1869). Off the west coast of Ireland, north-west of Achill Head. Lat. 
54° 15’ N., long. 11° 9’ W. Depth 183 fathoms. Bottom temperature 
9°°7 C.; surface temperature 11°°8 C. 
Astropecten irreqularis. Also at Stations 46, 67, and 68. 
Srarion 19 (1869). West of Donegal Bay. Lat. 54° 53’ N., long. 10° 56’ W. Depth 
1360 fathoms. Bottom temperature 3°°0 C.; surface temperature 12°°6 C. 
Plutonaster bifrons. Also at Stations 57 and 58. 
Sration 23 (1869). South of Rockall Bank. Lat. 56° 7’ N., long. 14°19’ W. Depth 
630 fathoms. Bottom temperature 6°'4 C.; surface temperature 14°°0 C. 
Brisinga coronata. Also at Station 45; and in 1870 at Station 13. 
