PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 



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Figure 1. -a-/, Aphdium lobatum Savigny: «, contracted zooid of colony from Palau 

 Islands; b posterior part of intestinal loop of a x.ooid of same colony; c, tip of atrial 

 languet of same x.oo,d; ./, colony from Saipan Island; ., intestinal loop of a zooid of same 

 colony;/ t.p of atrial languet of same zooid. g-k, Aplidium sp. aff. lobatuyn: g, upper 

 side of colony; A, common cloacal aperture, with small patches of embedded sand grains 

 surrounding aperture; i, right side of thorax; ;, abdomen; k, proximal end of rectum 

 showing a pair of inconspicuous caeca. ' 



