PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 7 



The follov,ini>' stations were made on Onotoa Atoll, Gilbert Islands, 

 by Preston E. Cloud (G()C-No.) and A. K. Banner (B-No.) in I'Jol, 

 USNM Ace. 195327 and Arno Atoll, Marshall Islands; P. E. Cloud: 

 Sla. GOC-23. 30 July. Slightly less than 4 miles N. 85° W. from Aioka 

 Waneaba in outer lagoon. I'atch reefs rising above the limesand surface to 14 

 feet to within G feet of the surface. 



Eudistoma angolanum (Michaelsen). 

 Sta. GOC-35. 10 Aiigust. About S,GOO feet N. 18° W. from Tabuarorae 

 Maneaba in 17 feet of water mean low tide. 



Bldemnum {Didemnum) moneleyi (Herdman) ; Polycarpa Iwayamac Toliioka. 

 Sla. GOC-39. 21 August. NW. Onotoa about 1,300 feet NE. from Namokcin., 

 in an area of gravelly sand bottom with maximum depths of about 12-14 inches 

 at low tide and with occasional heads of digitate Poritcs lobata. 



Lis-soclinum pulvinum (Tokioka). 

 Sta. GOC-41. 21 August. Green algal flats crusting dead coral, algal rock at 

 NW. corner of Atoll. Collection was made over an area extending about 300 

 feet N. and 1,000 feet W. from a point 3,000 feet N. of the monument on 

 Aonteuma. Area is exposed at low tide. 



Lis.iocUnum pulvinum (Tokioka); Trididcmnum cijclops Michaelsen; T. 

 savignii jolcnsc (Van Name). 

 Sla. GOC-44. 21 August. About 4,100 feet NNE. from monument on 

 Aonteuma, NW. Onotoa. The area is one of gravel, sand veneered dead coral- 

 algal bottom with occasional living digitate Porites lohata. Maximum depth at 

 low tide is 10-12 inches. 



Lcptoclinum virens Hartmeyer. 

 Sla. GOC-51. 23 August. About 314 miles N. 31° W. from Tabuarorae 

 Maneaba near the center of Te Rawa ni Bao, a pass in the S. part of the leeward 

 reef. Collected from thickly set coral masses rising from 15 feet (sounded at 

 low tide) of water to within about 8 to 10 feet of the surface locally. 



Polycarpa cryptocarpa (Sluiter). 

 Sia. GOC.-53. 23 August. About 9,300 feet N. 30° W. from Tabuarorae 

 Maneaba in S. part of Te Rawa Tekatobibi, a pass through the S. end of leeward 

 reef. Collected from patch reefs rising to an occasional maximum of within 4 

 feet of the surface from a bottom sounded at IS feet. 



Polycarpa cryptocarpa (Sluiter). 

 Sta. GOC-o5. 25 August. About 13,400 feet S. 75° W. from Aiaka Maneaba 

 in the deep central part of the lagoon. The bottom is of low scattered dead and 

 living coral patches on intervening limemud and limesand, about .30-40% sedi- 

 ments and 00-70% coral. 



Didemnum {Didcmnnm) candid u m i^avigny ; D (?/).) macrospictilat mn, n. i^\).; 

 D. (Polysyncraton) scmifuscmn (Sluiter) ; EudiHtoma angolanum (Michael- 

 sen) ; E. rubra Tokioka; Lcptoclinides retieulatus (Sluiter) ; Microcosnius ex- 

 aspcratus Heller; Polycarpa cryptocarpa (Sluiter); Trididcmnum Havignii 

 jolcnsG (Van Name). 

 Sla. GOC-.^9. 28 August. Approximately 1,400 feet due W. (S. 89° W.) from 

 offshore end of Covernment station jetty, from a patch reef in the lagoon. Reef 

 patch was about 200 feet in diameter rising from surrounding limesand bottom at 

 roughly 2 fathoms (estimate) to within 5 feet of the surface (2 feet reduced to 

 mean low tide). 



Aplidium lobatum Savigny ; Botryllus tuhcratus Ritter and Forsyth; Didem- 

 num (Didcmnnm) candidum Savigny; Eudintoma pyriforme (Herdman). 



