292 DISCOVERY REPORTS 



Fig.G 



Odinella nutrix 



I, I a. Disk spinelets from immature specimen, St. 123 (pi. XVII, fig. 2), having extreme diameter of 

 34 mm., X 100. Fig. I, 0-57 mm. long, is one of the long-pronged spinelets found only on disk. la. o-6mm. 

 long. I b. St. WS 766. Disk spinelet of immature specimen, 0-63 mm. long. 



2-2C. Disk spines of adult specimens x 100; 2, St. 123, i mm. long, the same sort being found on the type; 

 2a-b, pronged spines from type, St. 39, i-o8 and 0-95 mm. long; 2c, tip of spine, type. 2d. Abactinal spine 

 from genital inflation of type, 1-53 mm. long, x 50. 2c. Sixth inferomarginal spine of type, 2-5 mm. long. 

 X50. 



3-3 f. Young in stage 4 from brood pouch. 3. Abactinal plate, 0-45 mm. in diameter, x 50; 3(7, abactinal 

 spinelet, x 50; 36, abactinal spinelet, 0-36 mm. long, x 100; 3 f, adambulacral spinelet, 0-4 mm. long, x 100. 



4.-^d. Young in stage i from brood pouch, St. 123. Fig. 4, abactinal, diameter 2-55 mm., x 20. 40, actinal 

 view of 3 rays, x 30; 46, an embryonic abactinal plate, 0-2 mm. in diameter, x 100; 4c, ^d, abactinal spine- 

 lets, 0-15 and 0-12 mm. long, x 200. 



5, 5 a. Pedicellariae from lateral spine of type, middle of ray, 0-135 mm. high, x 300; 5 a, inner face of jaw 

 tip ; 5 b, middle piece. 



6-66. Pedicellariae from marginal mouth spines of type, x 300; 6, detail of jaw tip; 6 a, back view to show 

 the flaring "handles" of the blades or jaws; q-i6 mm. high (mp = midd\e piece); 6b, profile view showing 

 numerous excessively fine shank teeth, height o-i8 mm. 



