Plate 31 



Fig. 1. Tarsaster galapagensis, ■ 200. Two jaws of crossed pedicellariae. la. An intermarginal 

 straight pedicellaria, 0.36 mm., X100. \b. Internal view of a jaw. 



2. Ampheraster marianus, station 4427, • 10. Oral angle. 2a. Oral angle of largest specimen 



showing narrower mouth plates, X 10. 26. Same. Abactinal crossed pedicellariae, 

 0.32 to 0.36 mm., X 100. 2c. A jaw, ■ 200. 2d. Abactinal straight pedicellariae, 

 0.50 mm., X50. 2e. A furrow pedicellaria (1.26 mm.) from largest specimen, ■ .">(). 

 2/. Straight pedicellaria. station 44'_'7. 0.9 mm., <50. 



3. 3<;. Ampheraster chiroplus, station 4427, • 100. Two crossed pedicellariae, 0.36 and 0.3 



mm. '.ih, 3c Same. Two straight pedicellariae (1.1 and 1.2 mm.) from side of ray, 

 X25. 3d. Same, ■ 10. Oral angle and skeleton of same on right. 



4. Ampheraster at actus. Oral angle of type, X 10. 



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