40 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



pinnules are markedly longer than in the typical form, and P 2 reaches 14 mm. in length, 

 although the number of segments does not exceed 22. The ambulacral lappets of the 

 pinnules, which in the typical form stand out so strongly because of their blue-gray 

 color, are in the brown variety inconspicuous. 



The specimen from the Arrakan coast was described as a new species under the 

 name of Cenometra insueta as follows. With the arm and pinnule structure of C. 

 herdmani, and the same slenderness of build, this species has the paired dorsal tubercles 

 of the cirri situated with their apices much farther apart, about two-thirds of the trans- 

 verse width of the dorsal surface of the segments instead of less than one-half. The 

 specimen has 28 arms, and is badly broken. 



Localities. Dr. Sixten Bock's Expedition to Japan, 1914; station 49; Bonin 

 Islands; the Channel; 64 meters; August 2, 1914 [Gislen, 1922, 1924]. 



Marshall Islands; Jaluit, reef west of the eastern entrance; Dr. Chr. Hessle, Oc- 

 tober 30 and November 1, 1917 [Gislen, 1940]. 



Fiji; Bau, Viti Levu, reef south-southeast of the islet; Dr. Sixten Bock, July 1917 

 [Gislen, 1940]. 



Nha'trang Bay, Annam; littoral; Dr. C. Dawydoff [Gislen, 1936]. 



Albatross station 5108; China Sea, off southern Luzon; Corregidor light bearing 

 N. 39 E., 22.5 miles distant (lat. 1405'05" N., long. 12019'45" E.); 24 meters; 

 coral; January 15, 1908 [A. H. Clark, 1909, 1912] (1, U. S. N. M., 36226). 



Port Galera, Mindoro, Philippines; Dr. Lawrence E. Griffin (1, M. C. Z., 704). 



Albatross station 5401; north of Cebu, Philippines; Tanguingui Island light bear- 

 ing N. 79 W., 23 miles distant (lat. 1124'45" N., long. 12406'00" E.); 55 meters; 

 fine sand; March 16, 1909 [A. H. Clark, 1911, 1912] (1, U. S. N. M., 35300). 



Albatross station 5248; Gulf of Davao, southern Mindanao; Lanang Point bearing 

 S. 33 W., 0.4 mile distant Gat. 707'25" N., long. 12540'24" E.); 33 meters; coral; 

 May 18, 1908 [A. H. Clark, 1909, 1912] (1, U. S. N. M., 25465). 



Albatross station 5249; Gulf of Davao, southern Mindanao; Lanang Point bearing 

 N., 1 mile distant (lat. 706'06" N., long. 12540'08" E.); 42 meters; May 18, 1908 

 [A. H. Clark, 1909, 1912] (1, U. S. N. M., 35305). 



Albatross station 5141; in the vicinity of Jolo (Sulu); Jolo light bearing S. 17 E., 

 5.5 miles distant (lat. 609'00" N., long. 12058'00" E.); 53 meters; coral sand; 

 February 15, 1908 [A. H. Clark, 1908, 1912] (2, U. S. N. M., 35267). 



Albatross station 5147; Sulu (Jolo) Archipelago, in the vicinity of Siasi; Sulade 

 Island (E.) bearing N. 3 E., 8.4 miles distant (lat. 541'40" N., long. 12047'10" E.); 

 38 meters; coral sand and shells; February 16, 1908 [A. H. Clark, 1908, 1909, 1912] 

 (1, U. S. N. M., 35297). 



Albatross station 5160; Tawi Tawi group, Sulu (Jolo) Archipelago; Tinakta 

 Island (N.) bearing S. 72 W., 2.75 miles distant (lat. 512'40" N., long. 11955'10" 

 E.); 22 meters; sand; February 22, 1908 [A. H. Clark, 1908, 1909, 1912] (2, U. S. N. M., 

 25441, 35301). 



Albatross station 5163; Tawi Tawi group, Sulu Archipelago; Observation Island 

 bearing N. 79 W., 6.7 miles distant (lat. 459'10" N., long. 11951'00" E.); 51 meters; 

 coral sand; February 24, 1908 [A. H. Clark, 1908, 1909, 1912] (2, U. S. N. M., 35269, 

 35306). 



