. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 99 MATERIAL EXAMINED PuiLiPPiNE Islands : I'uiita Natangul, Basilan Island; W. R. Taylor, sta. 31. Four colonies (USNM 11G02).—Balukbuhik Lsland ; W. R. Taylor, sta. 40. Two colonies (USNM 11639).—Boboh, near Malaual Point; W. R. Taylor, sta. 41. One colony (USNM 11073).—Mauicaan, 3 fath., sandy with sliort eelgrasses and little coral reefs, W. R. Taylor, January 1941. One colony (USNM 11(545). Palau Islands : Iwayania Bay, Geruherugairu Pass ; GVF sta. 85A. Six speci- mens (USNM 11452).—Fringing reef
. Bulletin - United States National Museum. Science. PACIFIC TUNICATA OF NATIONAL MUSEUM 99 MATERIAL EXAMINED PuiLiPPiNE Islands : I'uiita Natangul, Basilan Island; W. R. Taylor, sta. 31. Four colonies (USNM 11G02).—Balukbuhik Lsland ; W. R. Taylor, sta. 40. Two colonies (USNM 11639).—Boboh, near Malaual Point; W. R. Taylor, sta. 41. One colony (USNM 11073).—Mauicaan, 3 fath., sandy with sliort eelgrasses and little coral reefs, W. R. Taylor, January 1941. One colony (USNM 11(545). Palau Islands : Iwayania Bay, Geruherugairu Pass ; GVF sta. 85A. Six speci- mens (USNM 11452).—Fringing reef of small island in lagoon (Meharehar) of Eil Malk ; GVF sta. 252. Six small specimens attached to coralline algae (USNM 11435). Marshall Islands : Ebon Atoll, M. W. de Laubenfels, no. M-139, July 5, 1949. One colony encrusting a reef coral {Scriatoporal) (USNM 11541). Gilbert Islands : Onotoa Atoll; P. E. Cloud, sta. GOC-44. Many small colonies (USNM 11479). Description.—Many small colonies from the Gilbert Islands, 8 small colonies from the Philippines, 1 dried specimen from Ebon Atoll, and 12 small colonies from the Palau Islands were examined. The largest is 20 nmi. X 12 mm. in extent and 2-3 mm. in thickness, smaller colonies are usually about 1 mm. thick. Colonies are all encrusted; small colonies simply elliptical or roundish in outline, larger ones gen- erally irregularly lobated. Living animals vivid cerulean blue or bright green, but preserved specimens fade to yellowish brown or turn dark brownish. Test gelatmous, not so soft, translucent or transpar- ent, and containing no spicules or other materials. Surface of colony smooth, quite free from foreign matter. Abundant zoochlorellae in lacunae. Zooids of the colony from Manicaan Island, Philippine Is- lands, are dark brownish, but whether this coloration is natural is questionable. Atrial aperture very wide. Six stigmata in each of four rows. Hind stomach clearly defined by distinct constrictions between it
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