ASCIDIANS OF THE PHILIPPINES VAN NAME. 83 



Digestive tract forming a narrow loop quite abruptly*curved up 

 dorsally at the reflected eud and opened out there for a short dis- 

 tance. Farther back the stomach and intestine lie nearly in contact 

 for a long distance. Stomach elongate, tapering into the intestine. 

 It bears on the side next to the branchial sac two hepatic glands (the 

 posterior the larger), each formed of many lobes composed of thin 

 platelike glandular folds of a greenish color. Rectum short; margin 

 of anus plain. 



One gonad on each side; in each a long obliquely placed oviduct 

 bears along its course several large, somewhat square or irregularly 

 shaped bodies, each containing a central mass of eggs surrounded 

 more or less completely by the small and very numerous testes. On 

 the left side the most anterior one of the masses lies in the intestinal 

 loop; the others lie dorsal to the intestine, which is crossed by the 

 oviduct. 

 The specimens collected are from the following localities: 

 No. 155. Station D5136 (off Jolo Light, 22 fathoms, sand and shells, 

 February 14, 190S.) Two specimens, adhering together. (Cat. 

 No. 5979, U.S.N.M.) 

 No. 135. Station D5145 (off Jolo Light, 23 fathoms, coral sand and shells, 

 February 14, 190S). One specimen. (Cat. No. 6034, U. S. N. M.) 

 No. 76. Station D5147 (off Sulade Island, Sulu Archipelago, 21 fathoms. 

 coral sand and shells, February 16, 1908). One small specimen. 

 (Cat. No. 5904, U.S.N.M.) 



This is a very widely distributed species in tropical seas. Michael- 

 sen, 1908, who discusses at length its characters, relationships, and 

 synonyms, records the typical form from the West Indies, Bermuda, 

 coast of East Africa, and Formosa. The writer can himself testify 

 to the close correspondence in the internal structure of specimens 

 from Bermuda with those from the Philippines. 



Genus CULEOLUS Herdman, 1881. 



CULEOLUS HERDMANI SJuiter. 



19U4. Guleolus herdmani Sluiter, Siboga-'Exped., vol. 56«t, p. 105, pi. 12, 



figs. 4-9. 

 1909. Guleolus herdmani Hartmeyer, Broun's Tier-reich, vol. 3, suppl., 



p. 1347. 



Body of rather elongate ovate form, or more or less cuneate; 

 greatest diameter posterior to the middle; the apertures (which both 

 have the form of rather large transverse straight or somewhat cres- 

 cent-shaped clefts) widely separated on the dorsal surface; the 

 branchial a little way from the anterior end; the atrial posterior to 

 the middle of the body. The stalk, which is slender and of nearly 

 uniform diameter (though increasing slightly toward the base) joins 

 the anterior dorsal part of the body and is continued as a ridge on 

 the dorsal surface of the body nearly to the branchial aperture. It is 

 more or less incrusted with sand. At its basal end the stalk breaks 



