300 DISCOVERY REPORTS 



Fig. K 



1. Notasterias armata. Skeleton of one side of ray, near base (which is to left), x 6; CC, carinal series; 

 DL, dorsolaterals; S, superomarginals ; /, inferomarginals ; A, actinals. 



2. PWz'rfosfer morrfax. Typical abactinal pedicellaria, 0'9 mm., x loo. 2a. Inner side of one jaw, x loo. 

 zb. Inferomarginal pedicellaria, opposing face of a jaw, x 50. 2c. Inner side of a jaw, x 100. 2d. Adam- 

 bulacral straight pedicellaria, 0-68 mm. long, x 50. 2e. Opposing face of a jaw showing denticles, 0-5 long, 



X 100. 2/. Back view of inferomarginal pedicellaria (0-93 mm. long) to show flaring handles and basal 

 piece, X 50. 2g. Side view of same, x 50. 



3. Psalidaster mordax. Abactinal spinelet i-S mm. long, x 50. 3 a. Two abactinal spinelets, i and 1-5 mm. 

 long, x 50. 3 b. Portion of lateral and actinal skeleton near base of ray which is at left, x 10. DL, dorso- 

 lateral primary plates; S, superomarginals; /, inferomarginals; AD, adambulacrals. 



