Plate 31 



All pedicellariae arc abactinal unless specified 



Figure 1. Leptasterias polaris acervala forma polylhela, No. 15817, l T . S. Nat. Mus., Arctic Ocean 

 north of Bering Strait. 0.25, > 200. 

 la. Same, station 3518, specimen with well developed abactinal spines, 0.27 mm., > 200. 

 16. Same, station 3251, very large specimen, 0.26 mm., X200. 

 Ic. Station 3439, 0.21) mm.," ■ 200. 

 1</. Same specimen as lc, end of jaw, X200. 

 h. Sam.-, station 1795, off Kamchatka, 0.27 mm., X200. 

 1/'. Same specimen, X 100. 



2. Leptasterias polaris acerrata forma aphclonola, type, station 2850. 0.27 mm., > 200 

 'la. Same, type; two pedicellariae showing different contours, 100. 



2b. Si station 3214, ■ 100. 



2c. Same specimen, 0.27 mm., X200. 



3. Same, type; a pedicellaria from an adambulacral spine, 0.34 mm., X100. 



3a. Same, type; a rare form of giant crossed pedicellaria from adambulacral spines, 0.45 



mm., X100. 

 36. Same, Old Harbor, Kodiak; two adambulacral spine pedicellariae, 0.25 mm., X 100; 



jaw, X200. 



4. Same, type; a rare form of straight pedicellaria from adambulacral spine, 0. Hi mm., <50. 

 286 



