PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 



147 



though the anterior margin of the intestinal loop reaches more 

 anteriorly than in A. longistr'iata. Inner longitudinal vessels are 

 somewhat fewer than in A. longistriata. Particularly, the spinose 

 appearance of the test is unique in the present specimen. Probably 

 the specimen should be treated as a distinct species closely related to 

 A. longistriata. 



69. Phallusia julinea Sluiter 



Figure 55 



Phallusia julinea Sluiter, 1919, p. 7, figs. 13-16.— Plartmeyer, 1919, p. 99, fig. 

 20 ; pi. 2, figs. 51-53.— Hastings, 1931, p. 81.— Tokioka, 1950, p. 133, fig. 13 ; 

 pi. 9, fig. 4.— Tokioka, 1952, p. 107, figs. 11-12. 



MATERIAL EXAMINED 



Paiau Islands : Iwayama Bay, south end of Gnazima ; GVF sta. 92A. One 

 specimen (USNM 11406). — Iwayama Bay, south end of Island XX; GVF sta. 

 134. Three specimens (USNM 11416) . 



Description. — Four specimens were examined from the Palau 

 Islands, respectively, 40, 59, 60, and 62 mm. in length. Ramified 

 vessels full of yellow corpuscles run through the test and can be 

 seen distinctly on every specimen. The appearance of the test sur- 

 face differs slightly from that of previously described specimens 

 from the same locality (Tokioka, 1950), as the surface is devoid of 

 minute papillae, and is quite smooth in the present specimens. The 

 basal part of the distal branch of the second intestinal loop is swollen 

 remarkably. The 59 mm. long individual was dissected to clarify 

 the structure of the branchial sac. There are 55-65 inner longitudinal 

 vessels on each side, all devoid of intermediate papillae. Tentacles 

 54, excluding a few minute ones. Secondary dorsal tubercles 48 on 

 left, 30 on right side. 



Figure 55. — Phallusia julinea Sluiter: primary dorsal tubercle of the 59 mm. individual 



