A MONOGRAPH OF THE EXISTING CRINOIDS 



15 



broad in the distal; relation of longer side of the brachials to width 1:2 to 2:3; angle 

 of the distal articulations with the longitudinal axis of the arm 73-82°. 



Comanthus japonica, arms 120 mm. long: (9) 10 brachials 2.4 broad in each 10 

 mm. in the proximal part of the arm, and (18) 22 brachials 1.6 mm. broad in the distal; 

 relation of longer side of the brachials to width 1:5 to 1:4; angle of the distal articu- 

 lations with the longitudinal axis of the arm 87-90°. 



Zygometra elegans, arms 105 mm. long: (16) 16 brachials 1.7 mm. broad m each 

 10 mm. in the proximal part of the arm, and (22) 24 brachials 1.3 mm. broad in the 

 distal; relation of longer side of the brachials to width 1:4; angle of the distal articu- 

 lations with the longitudinal axis of the arm 82-90°. 



Eudiocrinus loveni, arms 45 mm. long: Proximal brachials 1.4 mm. broad; (11) 

 14-15 brachials 0.8 mm. broad in each 10 mm. in the distal part of the arm; relation 

 of the longer side of the brachials to width 1:1 to 6:5; angle of the distal articulations 

 with the longitudinal axis of the arm 75-80°. 



Amphimetra tessellata, arms 120 mm. long: (11) 13 brachials 2.4 mm. broad in 

 each 10 mm. in the proximal part of the arm, and (25) 28 brachials 1.5 mm. broad in 

 the distal; relation of longer side of the brachials to width 1:5; angle of the distal 

 articulations with the longitudinal axis of the arm 86-90°. 



Himerometra magnipinna, arms 105 mm. long: (13) 13 brachials 1.7 mm. broad 

 in each 10 mm. in the proximal part of the arm, and (22) 23 brachials 0.8 mm. broad 

 in the distal; relation of longer side of the brachials to width 1:4 to 1:3; angle of the 

 distal articulations with the longitudinal axis of the arm 81-89°. 



Stephanometra spicata, arms 130 mm. long: (11) 12 brachials 1.5 broad m each 

 10 mm. in the proximal part of the arm, and (15) 16-17 brachials 1.1 mm. broad m the 

 distal; relation of longer side of the brachials to width 1:2; angle of the distal articula- 

 tions with the longitudinal axis of the arm 78-87°. 



Liparometra grandis, arms 120 mm. long: (13) 14 brachials 2.0 mm. broad in each 

 10 mm. in the proximal part of the arm, and (16) 18 brachials 1.2 mm. broad m the 

 distal; relation of longer side of the brachials to width 1:4 to 1:3; angle of the distal 

 articulations with the longitudinal axis of the arm 82-89°. 



Cenometra bella, arms 90 mm. long: (17) 20 brachials 0.8 mm. broad in each 10 

 mm. in the distal part of the arm; relation of the longer side of the brachials to the 

 width 2:3 to 3:4; angle of the distal articulations with the longitudinal axis of the 



arm 78-82°. 



Cyllometra discvformis ( = manca), arms 90 mm. long: (14) 17 brachials 1.2 mm. 

 broad in each 10 mm. in the proximal part of the arm, and (15) 20 brachials 0.7 mm. 

 broad in the distal; relation of the longer side of the brachials to width 1:1 to 4:3; 

 angle of the distal articulations with the longitudinal axis of the arm 72-82°. 



' Tropiometra encrinus, arms 105 mm. long: (9) 11 brachials 2.2 mm. broad in 

 each 10 mm. in the proximal part of the arm, and (14) 16 brachials 1.0 mm. broad in 

 the distal; relation of the longer side of the brachials to width 3:4; angle of the distal 

 articulations with the longitudinal axis of the arm 80-85°. 



Pectinometra flavopurpurea, arms 65 mm. long: (12) 13 brachials 1.0 mm. broad 

 in each 10 mm. in the proximal part of the arm, and (15) 17 brachials 0.7 mm. broad m 

 the distal; relation of the longer side of the brachials to width 5:6 to 1 :1 ; angle of the 

 distal articulations with the longitudinal axis of the arm 64-72°. 



