ASCIDIANS OF THE PHILIPPINES VAN NAME. 



107 



and therefore places the species in the genus Eusynstyela Michael - 

 sen, 1904, instead of Polyandocarpa. Eusynstyela imthurni (Hard- 

 man), from Ceylon (Herdman, 1906, p. 330, pi. 7, figs. 1-9; pi. 9, 

 fig. 4) , is evidently a very closely allied form. 



Genus STOLONICA Lacaze-Duthiers and Delage, 1892. 



While the following species does not conform strictly to the generic 

 diagnosis given by Hartmej^er (1909) in respect to the arrangement 

 of its gonads, the difference does not seem to warrant separating 

 it from that genus. 



STOLONICA STYELIFORMIS. new species. 



Plate 29, figs. 17-19. 

 Zooids oblong or somewhat cylindrical, tapering rather abruptly 

 at the anterior end, attached by the posterior end, the apertures (both 

 four-lobed) on rather prominent papillae, the branchial at the an- 



63 





Figs. 01-63. — Stolonica styeliformis, new species. 61, Left and richt sides of 

 eody of zooid. x 1.5. 62, dorsal tubercle x 15. 63, gonads. x 12.5. 



terior end and the atrial a little way back on the dorsal side. Colony 

 consisting of a more or less dense cluster of zooids, which, though 

 attached to the object on which they grow by the posterior end only, 

 are often so crowded together that the posterior parts of their bodies 

 are in close contact and adhere together, but they do not fuse, and 

 can be torn apart without injuring the test. The anterior part at 

 least of the body of each zooid is free and separate from adjacent 

 zooids. The largest specimen (No. 130), (Cat. No. 5995, U.S.N.M.), 

 though evidently only a part of a colony, completely surrounds a 

 section of the stem of an alcyonarian for a length of about 60 mm. 

 and consists of about 100 closely placed zooids, mostly of fairly 

 uniform size (14 mm. to 16 mm. long and 6 mm. to 7 mm. in dorso- 

 ventral diameter). Another colony (No. 113) is similar but more 

 irregular, and has zooids of less uniform size. In neither of these 

 colonies are the zooids mature. In specimens from stations D5174 

 and D5555 the zooids are larger, sometimes reaching 23 mm. or more 

 in length, and are fully adult. The}' are generally less closely 

 crowded, their bodies being separate for the whole length; the 

 posterior end is often narrowed into a short pedicel-like extension 



