344 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The largest specimen from Siboga station 99 has the cirri XIII and the arms 

 75 mm. long. Another has 11 arms 70 mm. long, the posterior arms being 55 mm. 

 long; the cirri are XI. There are from this station 4 others similar to the preceding, 

 and 6 more of medium and small size. All of the specimens are of the slender 

 armed type. 



Of the 3 specimens collected by Dr. Th. Mortensen off Jolo in about 22 meters, 

 one has exceptionally stout arms, one has slender arms 120 mm. long, and the third 

 is small with arms 30 mm. long. Of those collected in about 36 meters on March 17, 

 1914, one has the arms about 90 mm. long and moderately stout. The cirri are 

 XVII, 13, 7.5 mm. long, about half slender and almost straight, the other half being 

 stout and having the distal portion strongly recurved. A similar but somewhat 

 smaller specimen has the cirri XIII, 12-13, all of the stout type. The 3 other indi- 

 viduals are similar, but smaller. The 6 collected in about 36 meters on March 21, 

 1914, have the arms intermediate between the slender and the stout form. One of 

 these has 12 arms, 2 IIBr 2 (1 + 2) series being present. Of the 3 specimens dredged 

 in about 36-55 meters, 1 has the arms about 80 mm. long and the other 2 are smaller. 



The specimen from Siboga station 96 is small, with the arms 25 mm. long. 



The single specimen from Albatross station 5358 is a fine example, with the cirri 

 XIV, 13, from 13 to 15 mm. long and rather stout. 



The specimen from British North Borneo is of the slender-armed type, with the 

 arms 120 mm. long. 



The specimen from Siboga station 796 is small, with the arms only 27 mm. long. 



The example from Siboga station 79 is of the slender-armed type; the cirri are 

 XII, 13-14, and the arms are about 90 mm. long. 



The specimen in the Indian Museum from "India" is small. 



The single individual from Malacca (the type of Comatula cumingii) is young, 

 with the arms 35 mm. long; the cirri are VII, all broken off at the base. 



The larger of the two specimens from the southern portion of the Straits of 

 Malacca has the cirri with 15-17 segments, 15 mm. long. In neither specimen are 

 the arms swollen basally. 



The specimen from Singapore in the British Museum is of the slender-armed type. 



The characters of representative specimens from Singapore as shown by the 

 collections of Mr. Svend Gad are as follows: The largest have the arms from 125 to 

 140 mm. in length. An example typical for the locality has the arms 110 mm. long, 

 not enlarged proximally, and the cirri XIII, 10-12. A few specimens are of the 

 stout-armed type, one such having the cirri XIII, 12-13, 10 mm. long and the arms 

 65 mm. long. A number of specimens are intermediate between the stout and the 

 slender armed types, the grooved anterior arms being slender and the ungrooved 

 posterior arms being much shorter and stout. In one of these the anterior arms are 

 110 mm. and the posterior 50 mm. in length. Eight of the specimens have 11 arms, 

 the single IIBr series present being invariably 2 (1 + 2). 



A specimen from Singapore has 17 arms 50 mm. long. All but one of the arms, 

 which arises from a IBr series, are in various stages of regeneration; the arms of each 

 pair are always of the same length. The division series and arms resemble those of 

 Comatula rotalaria, but the arms are not broadened. The centrodorsal is discoidal, 



