1126 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
PLATE XXVI. 
Fig. 1. Antheniaster epixanthus. Abactinal aspect of type, natural size. la. Adambulacral plate from 
proximal portion of series, showing the heavy membrane as it appears in life, the granules 
beneath being nearly obscured; type, X8. 16. A dried specimen to show appearance after 
the membrane has shrunken, X8. This specimen is one of the long-armed forms and 
possesses a pedicellaria at the adoral side of a number of the plates. (See pi. xxix, fig. 2) . 
l'c. Radial and either adradial row of plates, obscured by integument, about one-third 
distance from center of disk to tip of ray, X5. 
Fig. 2. Asterodiscus tuberculosus. Adambulacral plates. Drawn by 0. E. Hyde. 
2a. Dorsal tubercles enlarged. Drawn by 0. E. Hyde. 
Fig. 3. Callidermci spectabilis. Seventh and eighth adambulacral plates, X5. 
Fig. 4. Tosia (Ceramaster) micropelta. Adambulacral plates, X 10. Drawn by 0. E. Hyde. 4a. Radial I 
abactinal plates, X12. Drawn by 0. E. Hyde. 
Fig. 5. Evoplosoma forcipifera. Mouth and first 3 adambulacral plates, X7. 5 a. Inner mouth spine, 
X7. 56,5c. Spines from actinal surface of adambulacral plates, X7. 
PLATE XXVII. 
Fig. 1. Calliaster pedicellaris. Adambulacral plate and adjacent actinal intermediate plates in proximal 
third of series, showing an open and a closed pedicellaria, X8. 
Fig. 2. Gilbertaster anacanthus. Abactinal view, X2. (The outlines of disk inclose fig. 26. ) Drawn i 
by H. R. Johnson. 2a. Three adambulacral plates (about one-third R in position), show- 
ing one of the large bivalved pedicel larige on the furrow margin. 26. Abactinal plates show- | 
ing the pedicellaria; and flat granules or ossicles by which the plates are covered, X7. p., ? j 
papulae. 2c. An actinal interradial area to show pedicellaria;, granules, furrow margin, and 
mouth plates. Drawn by H. R. Johnson. 
Fig. 3. Astroceramus callimorphus. Two adambulacral plates and one actinal intermediate plate, the j 
latter bearing a pedicellaria, X8. 
Fig. 4. Evoplosoma forcipifera. Abactinal view, Xl. 33. (The outlines of disk inclose fig. 46. ) Drawn 
by H. R. Johnson. 4a. Madreporic body and adjacent plates as they are in life, showing 
tubercles, vermiform papulae, and the granules covered with a soft membraneous sheath ; j 
Xo. An abactinal pedicellaria is also shown. 46. Side view of abactinal spines, X5. 
PLATE XXVIII. 
Fig. 1. Calliaster pedicellaris. Portion of abactinal surface, Xl-8. 
Fig. 2. Same. Actinal surface, Xl-8. 
Fig. 3. Asterodiscus tuberculosus. Side view of ray to show the 2 series of marginal plates, Xl-8. 
PLATE XXIX. 
Fig. 1. Anthmiaster epixanthus. Long-rayed form, abactinal surface of a dried specimen, Xl-35. 
Fig. 2. Same. Actinal surface, Xl-35. 
Fig. 3. Evoplosoma forcipifera. Actinal surface after specimen had been dried, Xl-83. 
Jig. 4. Linckia diplax. Actinal view of disk and adjacent portion of rays, Xl-83. 
PLATE XXX. 
Fig. 1. Leiaster callipeplus. Abactinal view, slightly more than XL 7. la. Same. Skin removed to 
show arrangement of plates. Portion of ray has been opened along dorsal line and spread 
out. 
Fig. 2. Ophidiaster rhabdotus. Abactinal view, slightly larger than natural size. 
Fig. 3. Ophidiaster triseriatus. Abactinal view, about X4.2. Photo by N. H. Kent. 
Fig. 4. Ophidiaster sclerodermus. Abactinal view, slightly larger than natural size. 4a. Actinal surface 
showing extensive actinal intermediate areas. 
PLATE XXXI. 
Fig. 1. Calliaster pedicellaris. Abactinal view, natural size. Drawn by H. R. Johnson. 
Fig. 2. Ophidiaster sclerodermus. Actinal surface showing furrow spines and position of pedicellariae. 
2a. A pedicellaria from the abactinal surface, much enlarged. 
