PLATE III. 



Astropecten scoparius. 



34. Abactiual vio-w. x ] . 



35. Actinal y'wav. x 3. 



36. Actinal intoiTadius. x 6. 



37. Month-pLiks. 11 = 55 mm. x 4.5. 



38. Fifth iiiton^m.irgirial plate and coiTespouding adaniljulacral 



plattis. u'iio imder side is the abcentral end. x 5.5. 



39. Superoraarginal plate, about one-third from the tip of an arm. 



The under side is the abcentral end. x 5.5. 



40. Madreporite. The upper side is the inner, x 5. 



41. Paxilla, from middle of the base of an arm. x 7. 



Astropecten polyacanthus. 



42. Abactinal view, x 1. 



43. Actinal view, x 1. 



44. Actinal interradius, denuded, x 3. 



45. Mouth-plates, x 4. 



46. Fourth inferomarginal and corresponding adambulacral plates. 



11 = 59 mm. The under side is the adceutral end. x 4.5. 



47. First armed superomarginal plate of an arm. The right side 



is the inner, x 6. 



48. First superomarginal spine of an arm. x 5.5. 



49. Paxilla, from middle of the base of an arm. 



50. Madreporite, covered with granules, x 5. 



51. Ditto, denuded. The upper side is the inner, x 8. 



Astropecten latespinosus. 



52. Abactinal view, x 1. 



53. Actinal view, x 1. 



54. Abactinal view of a small specimen, x 1. 



55. Actinal view of same, x 1. 



56. Actinal interradius, denuded. 11 = 36 mm. x 4.5. 



57. Mouth-plates, x 5. 



58. Fifth inferomarginal plate and coiTesponding adambulacrals. 



The upper side is the abc(intral end. R = o6mm. x 5. 



59. Fifth superomargiual and inferomarginal plates. X 5. 



60. Paxilla. x 9. 



61. Madreporite. The upper side is the inner, x 8. 



