A MONOGRAPH OF THE EXISTING CRINOIDS 185 



brachials being longer than usual, and the division series are narrow. (6) Twenty 

 arms 130 mm. long. (7) Seventeen arms 170 mm. long. Other specimens have 

 23, 22, and 20 arms. 



Of the 2 specimens from Albatross station 5276, 1 has 13 and the other about 20 

 arms; the brachials are very short with almost perfectly parallel borders. 



The specimen from the Macclesfield Bank in 40-55 meters has 17 arms. 



The 5 specimens from the China Sea in the Gottingen museum recorded by 

 Hartlaub are remarkable for their relatively slender build; they have from 25 to 35 

 arms. 



The specimen from ?China in the Berlin museum is small, with 31 arms 80 mm. 

 long. 



The specimen from Formosa (Taiwan) which was recorded by Hartlaub in 1891 

 and which I reexamined at Hamburg in 1910 is a rather slender medium sized example 

 with 36 arms and the cirri XII, 22-24. 



The specimen from Siboga station 33 has 20 arms 100 mm. long; all of the IIBr 

 series are developed. 



The example from Siboga station 40 has 11 arms 90 mm. long. 



The specimen from Siboga station 37 has 19 arms; 3 of the 8 IIBr series present 

 are 2; one of these bears externally a IIIBr 2 series; on all the arms the first syzygy 

 is between brachials 2 + 3. 



The individual from Siboga station 47 has 20 arms 125 mm. long; the brachials 

 are very short, discoidal, with the distal edges strongly everted and abundantly 

 supplied with short spines so that the animal feels very dry or rough; 3 of the IIBr 

 series are 2, and 1, paired with 1 of 2, is 1; the remaining IIBr series are 4 (3+4); 

 the cirri are 22 or 23 mm. in length. 



Of the 5 examples from Siboga station 49a the largest has 30 arms 100 mm. long; 

 all of the internal IIIBr series are present, and all are 3 (2 + 3); the longest cirrus 

 segments are not more than one-third again as long as broad ; the color is deep violet, 

 contrasting with the color of the others which are yellow brown, the smaller being 

 lighter than the larger. Another specimen had 19 arms 90 mm. long; 2 of the IIBr 

 series are lacking; there is 1 IIBr series of 3 (2+3), developed externally. Of the 

 other 3 individuals, 1 has 13 arms 40 mm. long and the others 11 arms 55 and 50 mm. 

 long. 



The 3 specimens from Siboga station 50 are uf medium size; 2 have 18 arms; in 

 one of these there is a IIBr 2 series; the third has 14 arms 80 mm. long. 



The specimen from Siboga station 299 has 19 arms 80 mm. long; there are no 

 IIIBr series; the cirri are XVII, 18-20, 15 mm. long. 



The specimen from Siboga station 80 is a very fine example; it has 20 arms 

 140 mm. long; all of the IIBr series are present, and all are 4 (3 + 4); the cirri are XIII, 

 20-21, 15 mm. long; the longest cirrus segments are not more than one-third again as 

 long as broad; the brachials are very short with strongly produced distal edges. 

 The animal is very robust. 



Of the 4 specimens from Siboga station 294, the largest has 14 arms 35 mm. 

 long; all of the IIBr series are 4 (3 +4) ; another has 11 arms 35 mm. long; the single 

 IIBr series is 4 (3+4); the other 2 have 10 arms. 

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