14 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 65 



Frequency at different depths Frequency at different temperatures 



f . A . ^ f A 



Degrees 



Fathoms 1 2 Fahrenheit 1 2 



0- IOO 2 I So-75 I 



100-200 2 I 75-70 3 O 



200-300 3 i 70-65 2 O 



300-400 3 i 65-60 2 O 



400-500 3 1 60-55 2 o 



500-600 5 1 55-50 2 o 



600-700 5 1 50-45 2 



700-800 5 1 45-40 3 1 



800-900 4 1 40-35 5 1 



900-1000 4 1 c 35-30 3 



1000-1500 3 1 30-25 2 1 



1500-2000 3 1 



2000-3000 3 



1 2 



Average depth 822 fathoms 666 fathoms 



Average temperature 49-5° Fahr. 35-8° Fahr. 



1. Interradials present. „ .. T . , 



1 Bathymetric lhermal 



range range 



Promachocrinus 10-222 28.7 



Thaumatocrinus 361-1800 37.4-42.7 



2. Interradials absent. Bathymetric Thermal 



range range 

 Pentacrinitiche (except Promacho- 

 crinus and Thaumatocrinus) .... 0-2000 28.7-80.0 



Apiocrinidje 565-940 36.7-38.1 



Phrynocrinidse 508-703 38.1-40.0 



Bourgueticrinidse 62-2690 29.1-70.75 



Holopodidse 5-120 71.0 



Plicatocrinidse 266-2575 31. 1-43.9 



Frequency at different depths Frequency at different temperatures 



4 * , * , 



Degrees 



Fathoms 1 2 Fahrenheit 1 2 



0-100 I 2 80-75 I 



100-200 I 2 75-70 3 



20O-3OO I 3 70-65 2 



300-400 1 3 65-60 O 2 



4OO-5OO I 3 60-55 O 2 



500-600 1 5 55-50 2 



60O-70O I 5 50-45 O 2 



700-800 1 5 45-40 1 3 



800-900 1 4 40-35 1 5 



900-1000 1 4 35-30 3 



1000-1500 1 3 30-25 1 2 



1500-2000 1 3 



2000-3000 3 



1 2 



Average depth 666 fathoms 822 fathoms 



Average temperature 35.8 Fahr. 49.5 ° Fahr. 



