488 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Albatross station 5253; Gulf of Davao; Linao Point bearing N. 22° E., 1.5 miles 

 distant (lat. 7° 04' 48" N., long. 125° 39' 38" E.); 51 meters; coral; May 18, 1908 

 [A. H. Clark, 1909] (3, U.S.N.M., 35001, 35055, 35072). 



Albatross station 5252; Gulf of Davao; Linao Point bearing N. 22° E., 1.5 miles 

 distant (lat. 7° 04' 48" N., long. 125° 39' 38" E.); 51 meters; coral bottom; May 18, 

 1908 [A. H. Clark, 1909] (1, U.S.N.M., 34991). 



Siboga station 99; anchorage off North Ubian, Sulu (Jolo) Archipelago (lat. 6° 

 07' 30" N., long. 120° 26' 00" E.); 16-23 meters; hthothamnion bottom; June 28-30, 

 1899, June 28 and 29 to the west and June 30 to the east of the island [A. H. Clark, 

 1918] (1, Amsterdam Mus.). 



Dr. Th. Mortensen's Pacific expedition, 1914-1916; off Jolo; coral reef; March 

 20, 1914 (1); about 36 meters; March 21, 1914 (1); about 46 meters; March 17, 

 1914 (1). 



Albatross station 5139; in the vicinity of Jolo; Jolo Light bearing S. 51° W., 

 3.6 nules distant (lat. 6° 06' 00" N., long. 121° 02' 30" E.); 36 meters; coral sand; 

 February 14, 1908 [A. H. Clark, 1909] (2, U.S.N. M., 34965, 35033). 



Albatross station 5138; in the vicinity of Jolo; Jolo Light bearing S. 19° E., 2.5 

 miles distant (lat. 6° 06' 00" N., long. 120° 58' 50" E.); 35 meters; sand and coral; 

 February 14, 1908 (1, U.S.N.M., 35165). 



Albatross station 5147; in the vicinity of Siasi, Jolo Archipelago; Sulade Island 

 (E.) bearing N., 3° E., 8.4 miles distant (lat. 5° 41' 40" N., long. 120° 47' 10" E.); 

 38 meters; coral sand and shells ; February 16, 1908 [A. H. Clark, 1909] (1, U.S.N.M., 

 35032). 



Albatross station 5148; in the vicinity of Siasi; Sirun Island (N.) bearing S. 80° 

 W., 3.8 miles distant (lat. 5° 35' 40" N., long. 120° 47' 30" E.); 31 meters; coral 

 sand; February 16, 1908 (1, U.S.N.M., 34972). 



Albatross; Phihppine Islands [A. H. Clark, 1909] (1, U.S.N.M.). 



Danish expedition to the Kei Islands; Dr. Th. Mortensen; station 20; about 50 

 meters; sand and shells; April 14, 1922 (2); station 30; about 40 meters; sand and 

 shells; April 18, 1922 (2); station 40; about 20 meters; sand; April 25, 1922 (1). 



Geographical range. — From the Philippine to the Kei Islands. 



Bathymetrical range. — Littoral and sublittoral; from the shore line down to 51 

 meters. The average of 12 records is 36 meters. 



Histor]/. — This species is only known from the specimens collected by the 

 Albatross in 1908, nearly all of which were recorded in 1909, the single specimen 

 collected by the Siboga in 1899 and recorded in 1918, and the 8 specimens collected 

 by Dr. Th. Mortensen in 1914 and 1922 and previously unrecorded. 



COMANTHEKIA ALTERNANS (P. H. Carpenter) 



[See vol. 1, pt. l.fig. 167 (central structures), p. 229; pt. 2, figs. 169, 170 (analysis of arm structure), 

 p. 86; fig. 188 (dorsal view), p. 108] 



Actinometra altcrnans P. H. Carpenter, Notes from the Leyden Mus., vol. 3, 1881, p. 208 (descrip- 

 tion; habitat unknown). — Bell, Proc. Zoo!. Soc. London, 1882, p. 533 (listed); p. 635 (specific 

 formula).— P. H. Carpenter, Proc. Zool. Soc. London, 1882, 1883, pp. 733 and following 

 (discussion of Bell's method of formulation and corrected formula). — Bell, Report Zool. Coll. 

 H. M. S. Alert, 1884, p. 155 (specific formula); p. 169 (Port Molle).— P. H. Carpenter, 

 Challenger Reports, Zoology, vol. 26, pt. 60, 1888, pp. 46, 48, 60, 58, 61, 329, 330, 333, 366, 



