MONOGRAPH OF THE EXISTING CRINOIDS. 



299 



Hathrometra tenella. Off Marthas Vineyard, Massachusetts (lat. 39 56' N., 

 long. 69 24' W.) ; depth, 329 meters; temperature, about 7.8 C. (Fish Hawk 

 Station 1033). 



Psathyrometra fragilis. Yezo Strait, Japan (lat. 44 05' N., long. 145 30' 

 E); depth, 540-959 meters; temperature, 1.61 C. (Albatross Station 5032). 



Pentametrocrinus japonicus. Southern Japan, 34.5 miles off Omai Saki Light 

 (lat. 34 04' 20" N., long. 137 57' 30" E.) ; depth, 1,123 meters; temperature, 

 3.39 C. (Albatross Station 5083). 



Hypalocrinus naresianus. Philippine Islands, 3.4 miles off Cagayan Island, 

 Jolo Sea (lat. 9 37' 05" N., long. 121 12' 37" E.) ; depth, 612 meters; temper- 

 ature, 10.22 C. (Albatross Station 5424). 



Endoxocrinus parrce. Off Habana, Cuba. 



Isocrinus decorus. Off Habana, Cuba. 



Bythocrinus robustus. Gulf of Mexico, southeast of Pensacola (lat. 28 38' 

 30" N., long. 85 52' 30" W.) ; depth, 255 meters; no temperature record. 



Ptilocrinus pinnatus. Off the Queen Charlotte Islands, British Columbia 

 (lat. 52 39' 30" N., long. 132 38' 00" W.) ; depth, 2,858 meters; temperature, 

 1.83 C. (Albatross Station 3342). 



In the following table the actual analyses are given. 



The symbol " R 2 O 3 " represents the sum of ferric oxide and alumina. 



The " loss on ignition " covers carbon dioxide, water, and organic matter, the 

 last being often very high. 



Table of actual analyses. 



