A MONOGRAPH OF THE EXISTING CRINOIDS 171 



stricted with expanded distal ends, this expansion of the ends being especially marked 

 dorsally so that the dorsal profile of the cirrus is rather strongly serrate, but this 

 dies away distally so that after the tenth segment the dorsal profile becomes smooth 

 and straight. The fifth is a more or less marked transition segment. The five arms 

 are 55 mm. long. P 2 is composed of 12-13 segments as in the type specimen. This 

 individual differs from the type only in its slightly greater size. 



The specimen from Siboga station 49a has the ornamentation of the brachials 

 slightly more accentuated than in the preceding. 



Parasite. — The largest individual from the Danish Expedition to the Kei Islands 

 station 24 has a smaU parasitic gastropod of the genus Melanella (see Part 2, pages 

 645-649) attached to it. 



Localities. — Albatross station 5136; in the vicinity of Jolo (Sum); Jolo Light 

 bearing S. 37° E., 0.7 mile distant (lat. 6°04'20" N., long. 120°59'20" E.); 40 meters; 

 sand and shells; February 14, 1908 [A. H. Clark, 1908, 1912, 1915] (1, U.S.N.M., 

 25437). 



Dr. Th. Mortensen's Pacific Expedition 1914-1916; off Jolo (Sulu); about 46 

 meters; sand and coral; March 19-20, 1914 (11); same, 36-55 meters; March 19, 

 1914 (1). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 24; 100 

 meters; hard bottom; April 15, 1922 (3). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 26; about 

 90 meters; sand; April 16, 1922 (4). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 53; 85 meters; 

 sand and coral; May 9, 1922 (11). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 54; 85 meters; 

 sand and coral; May 9, 1922 (10). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 57; 85 meters; 

 sand and coral; May 9, 1922 (4). 



Siboga station 310; north of the eastern end of Sumbava, Lesser Sunda Islands 

 (lat. 8°30' S., long. 119°07'30" E.); 73 meters; sand with a few pieces of dead coral; 

 February 12, 1900 [A. H. Clark, 1918] (1, Amsterdam Mus.). 



Siboga station 49a; Sapeh Strait, between Sumbava and Komodo (lat. 8°25'30" 

 S., long. 119°04'36" E.); 69 meters; coral and shells; April 14, 1899 [A. H. Clark, 

 1918] (1, Amsterdam Mus.). 



Geographical range. — From the Philippines to the Kei and Lesser Sunda Islands. 



Bathymetrical range. — From 40 to 100 meters; the average of 10 records is 69 

 meters. 



Remarks. — This species is known from the single specimen dredged by the 

 Albatross in 1908 and described later in the same year; from two specimens dredged 

 by the Siboga in 1899 and 1900 and recorded in 1918; and from 33 specimens dredged 

 by Dr. Th. Mortensen in the Philippines in 1914 and in the Kei Islands in 1922 and 

 herein first recorded. 



