K. MITSUKUKI : STUDIES ON 



38. Stichopus japoiiicus Se\ 163 



3J. „ oshijiiae, sp.n 171 



40. „ owsloni, sp. n 175 



41. „ variefjahis iim\} 178 



Family n, EipWiidae 183 



Subfamily 1. Deimatinae 183 



42. Zielmof/one negleda, sp. n 183 



43. „ pnrva, sp. u 18G 



44. „ selenkai, sp. n 189 



45. „ vioUfea Theel.. .. 11)2 



46. llyodaemon ijimal Mitsk '21)0 



47. Pannychia moseleyi Theel . . . . 207 

 Subfamily 2. Elpidiinae 212 



48. Periamni'i kumai, sp. u 213 



49. Enypn'ia.stes eximiri Theel . . . . 215 

 Family III. Cucumariiclae 218 



50. Colochirus dolhlum (Pall.) . . . . 218 



51. „ inornatus (v. Mar.) . . 221 



52. l^solus asci'Uiformis, sp.u 224 



53. Psolns squamatui (Mull.) ., ., 225 



54. Thyone sacelhi.': {Sel.) 227 



55. Phyllophonts japonicus, (v. Mar.) 230 



56. Cucumaria capensis p^rva var. n. 233 



57. „ c;»ron7yeJmi Theel .. 235 



58. „ echinata v. Mar. . . 239 



59. „ j-tponkft Snip 242 



60. „ multipes Tbeel . . . . 24G 



61. ,, nnzawji, sp. n 249 



62. „ obunca Lmp 251 



63. ,, squamulosa, sp. n. . . 253 



64. ,. vegai Theel . . . . 255 



65. Pxeitdocucumi s africana (Smp.). . 257 

 Family IV. Molpadiidae 261 



66. Caudina mn.<ionnetii v. Mar. . . 261 



67. Trochosloma amlamanense Wish. 262 

 68 Ankyroilermz rlininediae, sp. n. . . 265 

 69. „ roretzii v. Mar. . . 267 



capacity as Dean of the College of Scieace, ami ia other official reLvtions, many responsibilities 

 •levolvetl upon Professor Mrr.suKUBi, so that he could devote only a limited portion of his time 

 to his favorite study. To this he often alluded with regret. 



.\fter his death, on September 17th. 1903, all the notes, manusoriiJts, drawings, photographs 

 and preparations left by Lim relative to the subject, v/ere taken charge of by the undersigned, 

 to whom Professor Mitsukuki had entrusted their publication as far as should be found practic- 

 able. In fulfiUin,^ this sad duty the e.litor has been fortunate in securing, as co- editor. Mr. H. 

 Ohshima. Rhjakushi, a stu<lent of Professor MiTsuKniu's who, at the editor's suggestion, has taken 

 up the Holothuriuidea as the subject of his special study. 



The two editors found that the notes and manuscripts related chiefly to the actinopodous 

 Holothurioidea and were, for the greater part, nearly or quite ready fjr imblication. In pre- 

 paring them for the press, a small part, consisting of apparently provisional statements, or 

 referring to doubtful forms, have been omitted. All the notes and figure? that remain unpublished 

 wUl be utilized by Mr. Ohshima in his researches, and sj far as practicable will be incorporated 

 into his future puWicition with due acknowledgement of the source. 



In bringing this mon igrapU to its present f)rm, credit is due to Mr. Ohshima for the 

 laborious work of arranging the mmussript and thJ plates, and of making for the text careful 

 drawings from the original s'tetchei and photograiihs. 



Had Professor Mitsukubi lived to finish this work himself, it is easy to suppose that it 

 would have assumed a form greatly different from, and incomparably more worthy than, that 

 in which it is now presented. — Prof. I. Ijima. 



