G54 TIIE VOYAGE OF H.M.S. CHALLENGER. 



Station 73. West of Fayal, Azores. June 30, 1873. Lat. 38° 30' 0" N., long. 31° 14' 0" 

 W. Depth 1000 fathoms. Pteropod ooze. Bottom temperature 39° - 4 

 Fahr. ; surface temperature 69 o- Fahr. 

 Plutonaster notatus. 

 Ncomorphaster custichus. Also at Station 76. 



Station 75. Between the Islands of Fayal and San Jorge (Azores). July 2, 1873. 

 Lat. 38° 38' 0" N., long. 28° 28' 30" W. Depth 450 fathoms. Volcanic 

 mud. Surface temperature 70°'0 Fabr. 



Astropecten hermatophilus. 



Chastaster longipes. Also at Station 36. 



Ophidiaster attenuatus. 



Ophidiaster ophidianus. 



Station 76. Between the Islands of San Miguel and Pico (Azores). July 3, 1873. 

 Lat. 38° 11' 0" N., long. 27° 9' 0" W. Depth 900 fathoms. Pteropod ooze. 

 Bottom temperature 40° - Fahr. ; surface temperature 70°"0 Fahr. 

 Pontaster venustus. Also at Station 79. 

 Ncomorphaster eustichus. Also at Station 73. 



Station 78. Between the Islands of San Miguel and Santa Maria (Azores). July 10, 

 1873. Lat. 37° 26' 0" N., long. 25° 13' 0" W. Depth 1000 fathoms. Vol- 

 canic mud. Surface temperature 71° '0 Fahr. 

 Plutonaster abbreviates. 

 Aphroditaster gracilis. 

 Pentagonaster lepidus. 



Station 79. Between the Azores and Madeira. July 11, 1873. Lat. 36° 21' 0" N., 

 long. 23° 31' 0" W. Depth 2025 fathoms. Globigerina ooze. Bottom 

 temperature 35° - 9 Fahr. ; surface temperature 71° '5 Fahr. 



Pontaster venustus. Also at Station 76. 



Dytaster biserialis. 



Station 89. Between the Canary Islands and Cape Verde Islands. July 23, 1S73. 

 Lat, 22° 18' 0" N., long. 22° 2' 0" W. Depth 2400 fathoms. Globigerina 

 ooze. Bottom temperature 36° - 6 Fahr. ; surface temperature 73° - 5 Fahr. 

 Lonchotaster tartareus. 

 Tlioracaster cylindratus. 

 Freyella tubercidata. Also at Station 346. 



