ASCIDIANS OF THE PHILIPPINES VAN NAME. 133 



Specimens with adult or nearly adult zooids are from: 



No. 146. Station D5401 (off Tanguingi Island, north of Coins, Mar. 16, 3000. 

 30 fathoms, fine sand). A few large, completely separate, de< ply 

 pigmented zooids, probably all forming one colony as described 

 above (Cat. No. 5967, U.S.N.M.). 



No. 153. Station D5513 (off Point Tagolo Light, northern Mindanao, Aug. 7, 

 1909, 505 fathoms, gray mud and Globigerina). Small colony 

 with only one large fully developed zooid and a few immature 

 or degenerate ones. Not pigmented. (Cat. No. 590S, U.S.N.M.) 



No. 42. Station D5145 (near Jolo Light, Feb. 15, 1908, 23 fathoms, coral 

 sand and shells). Small colony, zooids stunted and imperfectly 

 separated, somewhat pigmented (Cat. No. 5919, U.S.N.M.). 



Immature or degenerate colonies, probably of this species, are 

 from : 



No. 47. Station D5144 (off Jolo Light, Feb. 15, 190S, 19 fathoms, coral 

 sand). Small colony (Cat. No. 5918, U.S.N.M.). 



No. 95. Station D5174 (off Jolo Light, Mar. 5, 1908, 20 fathoms, coarse 

 sand). Small colony (Cat. No. 5917, U.S.N.M.). 



No. 143. Station D5164 (off Observation Island, Tawi Tawi Group, Sulu 

 Archipelago, Feb. 24, 1908, 18 fathoms, green mud). Several 

 colonies, all containing only immature zooids deeply buried in 

 the common test (Cat. No. 5970, U.S.N.M.). 



Sluiter (1895) at first considered this species identical with Tie 

 man's (1890, 1899) Podoclaoella ineridionalis from Port Jackson, 

 Australia. Afterwards (1904) he concluded it was distinct and gave 

 it the name mottuccensis, which is here adopted, though from the 

 great variability of the specimens in the Albatross collection, the 

 writer is inclined to question the importance and constancy of the 

 characters separating Sluiter's species from Herdman's. 



This ascidian is widely distributed in the Malay Archipelago (see 

 Sluiter, 1904), ranging, according to that author, from shallow water 

 to 113 meters. Pizon's (1908) Podoclavella meridionalis from Am- 

 boina is undoubtedly this species. 



CLAVELINA DETORTA (Sluiter), 1904. 



Plate 31, fig. 29. 



1904. Podoclavella detorta Sluiter, £ifco#a-Exped., vol. 56a, p. 6. pi. 3. 



figs. 18-22. 

 1909. Podoclavella detorta Hartmeyer, Bronn's Tier-reich, vol. 3, suppl., 



p. 1426. 



The larger of the two specimens consists of a dense group of 40 

 Or 50 zooids arising from a common base composed of a compacted 

 mass of branching stolons, each zooid being inclosed in an entirely 

 separate covering of test substance and capable of being easily sepa- 

 rated from its neighbors without injury, though in the natural condi- 

 tion of the colony it is in close contact with them and is connected with 



