PACIFIC TUNICATA OF U.S. NATIONAL MUSEUM 97 



mm. in extent and 3.5 to about 10 mm. in thickness. Test soft, 

 gelatinous, pale brown or brownish ; however the periphery and under- 

 side of the colony are quite whitish because these parts are very 

 densely impregnated with spicule which are very large and distrib- 

 uted in the zooidal stratum in a moderate density in the surface 

 layers, but somewhat sparsely in lower layers. Nearly spherical in 

 shape, 63-7C/A in diameter in the Palau specimens, while 75-88/a 

 in the Philippine specimens; surface usually worn and marked with 

 a number of low triangular elevations. Many zoochlorellae contained 

 in lacunae system and consequently preservative usually becomes 

 green. About 12 stigmata in each of four rows. 



Remarks. — Didemnoldes sulcatum described by Gottschaldt in the 

 same paper next to the present species is regarded as a form of D. 

 patella which is grooved strongly on the colony surface. 



40. Lissoclinum pulvinum (Tokioka) 



Figures S2e,f 



Didem/nvm (Didemnum) gottschaldti Tokioka, 1950, p. 118, fig. 2. 



not Didemnum gottschaldti Hartmeyer, 190r», p. 1449. 

 Didemnum (Didemnum) pulvinum Tokioka, 1954a, p. 247, pi. 23, figs. 8-10; pi. 24, 

 figs. 1-5. 



MATERIAL EXAMINED 



Philippine Islands : Large Sibago Island ; W. R. Taylor, sta. 5. Two col- 

 onies (USNM 11647).— Baliwasan; W. R. Taylor, sta. 10. One colony (USNM 

 11653).— Sangboy Island; W. R. Taylor, sta. 11. Four small pieces (USNM 

 11671).— Cabaluay; W. R. Taylor, sta. 14. More than 35 small colonies (USNM 

 11669).— Punta Natangol, Basilan Island; W. R. Taylor, sta. 31. Many small 

 colonies (USNM 11663).— Kilay Island, near Langos Island; W. R. Taylor, sta. 

 38. More than 40 colonies (USNM 11678).— P.alnkbnluk Island; W. R. Taylor, 

 sta. 40. Two colonies (USNM 11638).— Boboh, near Matanal Point; W. R. 

 Taylor, sta. 41. One small colony (USNM 11674). — Manicaan, 3 fath., sandy 

 with short eelgrasses and little coral reefs, W R. Taylor, January 1941. Four 

 colonies attached to Valonia. — Basilan Island, Tundun Pasil, near lighthouse at 

 Isabela Channel, 1 fath., rocky coral reef ; W. R. Taylor, January 1941. Twelve 

 colonies (USNM 11684). 



Palau Islands : Barrier reef 8 mi. NW. of Koror Island ; OVF sta. 25. Two 

 colonies (USNM 11386).— Ngerkuid, west of Eil Malk ; GVF sta. 261. Three 

 colonies (11.396) growing with Didemnum (D.) ternatanum (Gottschaldt) 

 (USNM 11398). 



Gilbert Islands : Onotoa Atoll ; A. H. Banner, sta. B-5. Seventeen colonies 

 (USNM 11480).— P. E. Cloud, sta. GOC-39. Twenty-six colonies (USNM 

 11487). — P. E. Cloud, sta. GOO-41. A number of colonies crowded on a large, 

 dead reef coral 130X110 mm. in extent and 90 mm. in height (USNM 11538). 



Description. — Many small, roundish, or slightly elongated colonies 

 from t]ie Gilbert Islands, two small colonies from tlie Palau Islands 

 and many small ones from the Philippine Islands were examined. 

 Larger colonies are 10 mm.xT mm. to 14 iuiii.X5 mm. in extent and 

 1 mm. (in smaller colonies) to 2-3.5 mm. (in larger colonies) in thick- 

 ness. They are attached to dead reef corals, Ilalhneda or Valonia^ 



