640 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



has 5 IIBr series in place, 2 of them being 2 and the other 3 being 4 (3 + 4). One of 

 the specimens has I and the other no cirri. 



Carpenter said that the specimen from Kupang, Timor, which he examined in 

 the Berlin Museum has 20 arms and is peculiar for the small size of P 2 , which is less 

 than half the length of P^ 



Of the 6 specimens from Siboga station 282, 5 are small. The other has 22 aims 

 which are thus distributed: 1 + 2, 4+ 1, 4 + 4, 1 +3, 2. All of the division series are 

 4 (3 + 4). The cirri are very short, but are slightly more robust than usual, tending 

 toward the type characteristic of C. samoana. 



The 3 specimens from Siboga station 144 are all young. One has 12 arms 70 mm. 

 long, both of the IIBr series being 4 (3+4); there are IV small cirri. The 2 others 

 have 10 arms; one is the same size as the preceding, and the other is small. 



One of the Challenger specimens from Banda was described as a new species by 

 Carpenter under the name of Actinometra elongata. As given by him the characters 

 are as follows : 



The centrodorsal is a small thin disk. 



The cirri are about X, 12-14; a few of the segments are longer than broad. 



The radials are visible. The IBr t are partly united laterally, but the remainder 

 of the division series are well separated. The IIBr series are 2. 



There are 18 arms, of which the anterior reach 110 mm. in length, tapering very 

 slowly and consisting of 120 quadrate brachials, of which the middle and later ones 

 are very long, while the posterior reach only 45 mm. in length and taper rapidly, and 

 consist of about 55 shorter, but still quadrate, brachials. 



Syzygies occur between brachials 3+4, again from between brachials 7 + 8 to 

 between 11 + 12, and distally at intervals of about 4 muscular articulations. 



The pinnules diminish from P b which reaches 8 mm. in length, to those of the 

 fifth and sixth brachials, and then increase again, becoming very long and slender 

 at the ends of the arms. The first 6 or 8 have a slight terminal comb which occurs 

 at intervals to far out on the arm. The later pinnules of the posterior arms have 

 "ovoid bodies" on their dorsal edge. 



The mouth is nearly radial, and the disk is naked . The color in alcohol is greenish 

 gray. 



Carpenter's figure is not wholly in accord with his description. It shows an 

 undeveloped specimen of panncirra with 19 arms. Of the 8 IIBr series present, 6 are 

 2 and 2 are 4 (3 + 4). The single IIIBr series, which is not mentioned by Carpenter, 

 is 4 (3 + 4). The single arm drawn is of the attenuate type, which is of rather frequent 

 occurrence in this species in the East Indian region. 



Another Challenger specimen from Banda in the British Museum identified by 

 Carpenter as parmcirra has 18 arms and IV cirri. 



The Siboga specimen from the reef at Banda is small, with 11 arms. Of the 2 

 dredged by the Siboga at Banda in 9-36 meters, 1 has 14 arms about 40 mm. long, and 

 the other, which is undergoing adolescent autotomy, has 12 arms about 40 mm. long. 



The specimens from off Neira, Banda, show the following features: 



There are 26 arms, the longest 130 mm. and the shortest 65 mm. long. The 

 10 IIBr series and the 6 IIIBr series are all 4 (3 + 4). Of the latter, 4 are developed 

 on a single ray, and there is a single one, external, on an adjacent ray. 



