Plate XV. 



I, 2, 5, 8, 13, 19—21, 29, 37, 40, 43, 52 Acropsis rosiraia. 6, 12, 27, 34 A. ftilva. lo, 14, 15, 22, 25, 32, 36, 39, 41, 31 

 Accsie bellidifcta. 9, 16— iS, 24, 26, 30, 31, 35, 38, 44, 45, 47, 48, ^o Himiastercxpergitus. 42, 46 IL gibbosus. 3, 7, 11 vH.,. soiiatiis 



4, 33, 49 H. lenuis. 23, 28 ■^H.r. flo rigerus. 



Fig. I. Aeropsis rost rata, rostrate pedicellaria. 50/^. 



— 2. — — valve of trideutate pedicellaria. 5°/,. 



— 3. <i.Hcviiastcry> zonatus (< Challeiigers St. 126), valve of globiferous pedicellaria; side view. (Comp. 



Fig- 7)- 



/I- 



— 4. Hcniiastcr tenuis, valve of trideutate pedicellaria. 50/j. 



— 5. Acropsis rost rata, frontal tube-f oot. '°/i. 



— 6. — /uha («Challenger. , St. 191), valve of trideutate pedicellaria. 5°/^. 



— 7. i^Hciiiiaster-i zonatus (sChallenger ;, St. 126), valve of globiferous pedicellaria, from tlie inside. 



(Comp. Fig. 3). 50/^. 



— 8. Acropsis rost rata, valve of trideutate pedicellaria. 50/^. 



— 9. Hcniiastcr cxpergitus, rostrate pedicellaria. so/^. 



— 10. Accstc bcllidifera, rosette plate, proximal part, in side view. '-»o/j. (Comp. Fig. 39). 



— II. «HciiiiastcrA zonatus, valve of rostrate pedicellaria. 7°/,. 



— 12. Aeropsis fulva («Challenger', St. 191), valve of small tridentate pedicellaria. '^5/^. 



— 13. — rostrata, valve of rostrate pedicellaria. 7°/,. 



— 14. Accstc hcllidifcra, — - globiferous — soy^. 



— 15. — _ — — - rostrate — ■'^°/i. 



— 16. Herniaster expergitus, valve of rostrate pedicellaria. 50/^. 



— 17. — — — - small tridentate pedicellaria. '^s/i- 



— 18. — — — - rostrate pedicellaria. s°/i. 



— 19. Aeropsis rostrata, rosette plate, outer end, from below. 5o/j. 



— 20. — — — — proximal end, from below. '^s/j. 



— 21. — — valve of tridentate pedicellaria. 5°/,. 



— 22. Accstc bcllidifera, — - — — 5°/^. 



— 23. «.Hemiaster-» florigerus (type specimen), valve of tridentate pedicellaria. ^^s/j. 



— 24. Hcniiastcr expergitus ( -Talisman«), valve of globiferous pedicellaria. so/j. 



— 25. Accstc bcllidifera, valve of tridentate pedicellaria. ^f. 



— 26. Hcniiastcr expergitus, valve of tridentate pedicellaria. '^5/,. 



— 27. Aeropsis fulva (> Challenger ■, St. 191), valve of tridentate pedicellaria. 70/j. 



— 28. <s.Hcniiastcrt, florigerus (type specimen), spicule from tube-foot. '75/^. 



— 29. Aeropsis rostrata, valve of small tridentate pedicellaria. 70/^. 



— 30. Hcmiaster expergitus, valve of small tridentate pedicellaria. '25y^_ 



— 31. — — — - ophicephalous — 125/j. 



— 32. Accstc bellidifera, — - rostrate — 50/j. 



— 33. Heniiastcr tcnuis, — - globiferous — 50/^. 



— 34. Aeropsis fulva («Albatross», St. 3393), valve of rostrate pedicellaria. 45/i- 



— 35. Hcniiastcr expergitus, valve of triphyllous pedicellaria. '75/,. 



— 36. Accstc bcllidifera, valve of small tridentate (? rostrate) pedicellaria. i^5/j. 



— 37. Aeropsis rostrata, — - triphyllous pedicellaria. '^s/^^ 



— 38. Hemiaster expergitus, spicule from tube-foot. '75/,. 



— 39. Accstc bellidifera, rosette plate, inner part, from below. (Comp. Fig. 10). '-»o/,. 



— 40 a. b. Acropsis rostrata, spicules from tube-foot. 7°/,. 



— 41. Aceste bcllidifera, spicule from tube-foot. ■+°/i. 



— 42. Hemiaster gibbosus, trideutate pedicellaria. 7°/,. 



— 43. Acropsis rostrata, miliary spine, with . ampulla». so/,. 



— 44. Hemiaster expergitus, primary spine, from the anterior end of the test, side view. 35/,. 



— 45- — — small tridentate pedicellaria. 7°/,. 



— 46- — gibbosus, valve of globiferous pedicellaria. 5°/,. 



— 47- — expergitus, globiferous pedicellaria. 5°/,. 



— 48. — — valve of globiferous pedicellaria. so/,. 



— 49. — tennis, small tridentate pedicellaria; (the skin dark coloured). 50/,. 



— 50- — expergitus, primår}- spine, from the actinal plastron. 35/,. 



— 51. Aceste bellidifera, valve of tridentate pedicellaria. '^s/,. 



— 52. Aeropsis rostrata, tridentate pedicellaria. 37/,. 



