MUSEUM OF COMPARATIVE ZOOLOGY, 163 
Fig. 30. Ophioplinthus medusa, below ; 2 
Fig. 31. é ce above; $. 
Fig. 32. Ophiomusium archaster, arm-joints; 4. 
Fig. 33. Ophioplinthus grisea, below; $. The side mouth-shields should be visible, 
¢ 
Fig. 34, * above; f. 
Fig. 35. Ophioglypha Deshayesi, below ; $. 
Fig. 36. X. de above; 3. 
Fig. 37. E, ES arm-ioints ; 4, 
Fig. 38. S confragosa, above; +, 
Fig. ۰ a e below, +, 
Fig. 40, Ophioplinthus medusa, arm-joint ; $. 
Fig. 41. Ophioglypha intorta, below ; 4. 
[LII 
Fig. 49. s above; 4. 
Fig. 43. S de arm-joints ; 4, 
Fig. 44, z brevispina, below ; 4. 
Fig. 45. d vg above; 3, 
Fig. 46. id di arm-joints and comb ; $. 
Fig. 47. " ambigua, arm-joints and comb POT 
Fig. 48. dà di below ; 3, 
Fig. 49. e Jlagellata, below ; 4. 
Fig. 50. d Sly above; $. The disk-scales cannot be seen unless 
the specimen be dry. 
Fig. 51. Ophioglypha flagellata, arm-joints ; $. 
Fig. 52. I ponderosa, below ; $, 
Fig. 53. iN E; above; 3. 
Fig. 54. s eS arm-joints ; 3, 
Fig. 55. s Jejuna, below; $, 
Fig. 56. p * above; $. 
Fig. 57. E confragosa, arm-joints ; 4, 
PLATE 0 
Fig. 58. Ophioglypha Lacazei, below; 4. 
es 
Fig. 59. Es above; +. 
Fig. 60. u i arm-joints ; $ 
Fig. 61, H undulata, below; 4, 
Fig. 62. P " above ; ۰ 
Fig. 63. e imbecillis, below ; 4. 
Fig. 64, "T " above ; 4. 
Fig. 65. ie radiata, below; 4. 
Fig. 66. js EN above; ۰ 
Fig. 67, s lapidaria, below; 3. 
Fig. 68, cH Ab above ; + 
Fig. 69, ki V arm-joints ; $. 
Fig. 70. ۳ variabilis, below, young ; 4. 
Up و‎ if lepida, below; 4. 
Fig. 72. z “ above; ¢ 
