68 UNITED STATES NATIONAL MUSEUM BULLETIN 251 







Figure 21. — Didemnum {Didemnum) nekozita, new species: a, 4 mm. colony from the Palau 

 Islands, sta. 25; b-f, variously shaped prominences on surface of colonies from same 

 locality; g, spicules from colonies from same locality; h, right side of thorax from colony 

 from Palau Islands, sta. 35; i, right side of abdomen from colony from Palau Islands, 

 sta. 25; j, right side of abdomen from colony from Palau Islands, sta. 35. 



Pail\types. — USNM 11801, same data as holotype, 34+ speci- 

 mens. — USNM 11418, Palau Islands: Peleliu boat channel between 

 Ngargersal and Kongauru Islands, approximately 1 mi. E. of north 

 tip of Peleliu ; 7°02'51" N., Ie34°l7'42" E. (HO chart 4007) ; 1-10 feet, 

 sand, silt, and occasional coral, with Enhalus acoroides and 2 other 

 ssp. of eelgrasses, and many algae including Gaulerpa; GVF sta. 35, 

 July 24, 1955, many specimens (USNM 11418) . 



Additional Specimens. — Palau Islands: Iwayama Bay, mouth 

 of Oyster Pass, between Island XXIX and east end of Koror; GVF 

 sta. 236A, four specimens (USNM 11423) . 



