20 UNITED STATES NATIONAL MUSEUM BULLETIN 251 



74. Botryllus tuteratus Ritter & Forsyth, 



77. Botrylloides tyreiim Herdman. 



78. Botrylloides violaceus Oka. 



79. Botrylloides violaceus marginaius, new subspecies. 



80. Symplegma viride Herdman. 



83. Polycarpa aurata {QvLoy & Gaimard) . Ifaluk Atoll. 



84. "iPolycarpa quadrata Herdman. 



85. Polycarpa captiosa (Sluiter). 

 8G. Polycarpa cryptocarpa (Sliaiter). 

 87. Polycarpa iwayamae Toliioka. 

 90. Polycarpa sp. 



104. Pyura curvigona Tokioka. 



105. Pyura vittata (Stimpson). 

 111. Microcosmus curvus Tokioka. 



Marshall Islands (4 species) 

 41. LeptocUnum virens Eartmeyer. Ebon Atoll. 

 67. Ascidia aperta Sluiter. Rongelap Atoll. 

 8Q. Polycarpa cryptocarpa (Sluiter) . Bikini Atoll. 

 87. Polycarpa iumyamae Tokioka. Arno Atoll. 



Gilbert and Solomon Islands (21 species) 

 1. Aplidium lobatum Savigny. 

 9. Amaroucium multiplicatum (Sluiter). 



13. Polyclinum tsutsuii Tokioka. 



15. Polyclinum constellatitm Savigny. 



19. Didcmnum (Didcmnum) candidum Savigny. 



20. Didcmnum {Didcmnum) moseleyi (Herdman). 



23. Didcmnum CiDidemnum.) macrospiculatum, new species. 

 29. Didemnum {Polysyncraton) semifuscum. (Sluiter). 



31. Trididemnum savignii war. jolcnse (Van Name). 



32. Trididemnum Cyclops Michaelsen. 

 34. Leptoclinides reticulatus (Sluiter). 



40. Lissoclinum pulvinum (Tokioka). 



41. LeptocUnum virens Hartmeyer. 



47. "iEudistoma pyrifortne (Herdman). 



48. Etidistoma angolanum (Michaelsen). 



49. Eudistoma ruhrum Tokioka. 



74. Botryllus tubcratus Ritter & Forsyth. 



86. Polycarpa cryptocarpa (Sluiter). Gilbert, New Georgia. 



87. Polycarpa iwayamae Tokioka. 



89. Polycarpa melanosiphonica, new species. 



110. Microcosmus exaspcratus Heller. 



Wake Island (3 species) 



61. Perophora formosana (Oka). 

 65. Ascidia gcmrnata Sluiter. 



111. Microcosmus ourvus Tokioka. 



Hawaiian Islands (6 species) 



7. Amarouciutn plicifcriim Redikorzev. 



14. Polyclinum vasculosum Pizon. 



19. Didemnum {Didemnum) candidum Savigny, 



