618 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The lower pinnules are not especially long or stout. P D is from 23 to 25 mm. in 

 length and is composed of about 60 segments. The pinnule on the IIIBr series is 

 20 mm. long. Pj is 17 mm. long. P 2 is 10 mm. long. 

 The color in alcohol is dark brown. 



Regarding his Actinometra meyeri, the type of which is a dry specimen from 

 "Australia" in the Hamburg Museum, Carpenter says that it is a rather large species 

 distinguished by the thin centrodorsal and the small number of cirri which it bears. 

 The rays divide three times, each division being 4 (3 + 4). The brachials are trian- 

 gular and overlap rather markedly. The lowest pinnules appear to have been long 

 and slender, but he noted that in the dry specimen it is difficult to make out their 

 relative proportions, a point of much importance for specific determinations. 



Carpenter added that the museums at Dresden and Vienna contain some indi- 

 viduals in alcohol which are probably identical with the dry Hamburg specimen, so 

 far as he could judge from his notes without having made a direct comparison, and 

 he preferred, therefore, to reserve a detailed description of the type until he had 

 made a closer examination of the alcoholic specimens. 



The specimen from Friedrich-Wilhelms-Haven is large, with 40 arms. The 

 centrodorsal is much reduced. 



The three specimens from St. Matthias Island have each about 40 arms, and the 

 centrodorsal much reduced. All three of them have nearly all of the division series 

 2 instead of 4 (3 + 4). 



The specimen in the Copenhagen Museum from the Tonga Islands has 34 arms 

 and VI cirri. All of the division series beyond the IBr series are 4 (3+4). 



A specimen which I examined in the Hamburg Museum labeled Tonga and Fiji 

 has 44 arms. This is the one with 44 arms recorded by Hartlaub from Tonga. 

 Another from Tonga in the Hamburg Museum recorded by Hartlaub has a moder- 

 ately large centrodorsal bearing about XXX cirri, and 39 arms. All of the IIBr 

 series are 2. 



The specimen from Challenger station 174 has about 40 arms. The centrodorsal 

 is stellate with rudimentary cirrus stumps. 



The specimen from Fiji in the Hamburg Museum is typical, with 40 arms, all 

 the IIIBr series being present. It is the same size as that from Bowen, Queensland, 

 which was described as Comanthus intricata. 



The specimen from Fiji in the Copenhagen Museum has 38 arms and XII cirri. 

 The specimen from Mortlock Island recorded by Hartlaub has 38 arms. Six of 

 the IIBr series are 2. 



One of the specimens collected by Dr. Th. Mortensen on a coral reef off Jolo 

 has 32 arms up to 110 mm. long. Of the 10 IIBr series 6 are 4 (3+4) and 4 are 2, 

 the latter being on 2 postradial series, 2 on each. Subsequent division series are all 

 4 (3+4). The centrodorsal is pentagonal, only very slightly raised above the dorsal 

 surface of the radial pentagon. There is a single weak cirrus. The other specimen 

 is similar, but has V small weak cirri and some additional which are very immature. 

 The example from about 27 meters has 38 arms. All of the IIBr series are present, 

 and all are 4 (3+4). One of the IIBr axillaries bears 2 undivided arms. There are 

 18 IIIBr 4 (3+4) series. The 2 specimens from about 36 meters each have about 

 40 arms. 



