THE STARFISHES OF THE HAWAIIAN ISLANDS. 
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PLATE IV. 
Fig. 1. Astropecten productus. Abactinal view of one arm and parts of three others, slightly less than 
natural size. 
Fig. 2. Same. Actinal view of base of ray, showing mouth plates and inferomarginal armature. The 
spines have been removed from a few inferomarginal plates to show their shape, and the 
fasciolar grooves, nearly X2. 
Fig. 3. Same. Abactinal view, showing lateral inferomarginal spines, nearly X2. 
PLATE V. 
Fig. 1. Ctenophoraster hawaiiensis. Abactinal surface. Natural size. 
Fig. 2. Same. Actinal surface. 
PLATE VI. 
Fig. 1. Ctenophoraster hawaiiensis. A portion of disk and base of rays enlarged to a trifle over 2 
diameters. 
Fig. 2. Same. Actinal view. The actinal intermediate plates are cleared of spinelets in one interradius. 
PLATE VII. 
Fig. 1. Psilasteropsis cingulata. Side view of an arm, enlarged nearly 2 diameters. 
Fig. 2. Same. Two immature individuals, slightly larger than natural size. 
Fig. 3. Same. Abactinal view of adult, slightly larger than natural size. 
Fig. 4. Psilaster attenuatus, slightly larger than natural size. 
PLATE VIII. 
Fig. 1. Psilaster attenuatus. Mouth plates and actinal intermediate areas, enlarged to slightly less than 
2 diameters. 
Fig. 2. Psilasteropsis cingulata. Actinal view, enlarged to slightly less than 2 diameters. 
Fig. 3. Astropecten callistus. Actinal view, enlarged to slightly less than 2 diameters. 
Fig. 4. Tritonaster craspedotus. Actinal view, enlarged to slightly less than 2 diameters. 
PLATE IX. 
Fig. 1. Tritonaster craspedotus. Twelfth to fourteenth marginal plates showing the prominence of the 
inferomarginal series with their long spines, X8. la. Fourth and fifth inferomarginal 
plates and adjacent adambulacrals, XlO. A pedicellarian apparatus is shown on one plate 
otherwise cleared of actinal spines; int. intermediate plates. 16. Paxil he from abactinal 
interradial area, X20. lc. Side view of a larger interradial abactinal paxilla, X20. Id. 
Paxilla from radial line, middle of ray, X20. le. Mouth plates, side view, showing par- 
ticularly position of marginal spines, X6. If. Adambulacral plate, middle of ray, 
opposite eleventh inferomarginal, X'10. 1<7- Mouth plates, actinal aspect, X8. 1 h. Mar- 
ginal plates of outer half of ray, viewed directly from above, to show prominence of infero- 
marginals; X2. All covering has been removed. 1 i. Enlargement of a couple of plates, 
X8. 1 j. Marginal plates from side, showing relative height of the 2 series; sup., supero- 
marginals. lit. Medium spine of adambulacral furrow series, X10. 
Fig. 2. Patagiaster nuttingi. Ninth and tenth adambulacral and fifth and sixth superomarginal 
plates, X 10. Intermediate plates (inf.) are shown between the two. 2a. Paxillse from base 
of ray, X 10. 
Fig. 3. Dipsacaster nesiotes, Paxillse from base of ray showing also the prominent papular pores, 
X10. 3 a,. Side view of a paxilla from the abactinal interradial area, Xl5. 
Fig. 4. Astropecten callistus. Ninth and tenth adambulacral plates and adjacent inferomarginals, X10. 
The actinal intermediate plates are seen between the two. 4a. Mouth plates, X8. 46. 
Paxillse from base of ray, at side, XlO. 4c. Paxilla from another individual, X10. 4 d. 
Some of its spinelets enlarged. 
