A MOXOGRAPH OF THE EXISTIXG CRIXOIDS 491 



spines. The proximal pinnules as far as the fourth bracliial have a small terminal 

 comb, which occurs also on some of the larger pinnules immediately following. 



The diameter across the radial ring is 13 mm. The color in alcohol is blackish 

 brown. 



I examined this specimen at the Leyden Museum in 1910. There are about 90 

 arms. The diAasion series are regularly alternating, the IIBr series being 4 (3 + 4), 

 the IIIBr series 2, the IVBr series 4 (3 + 4), the VBr series 2, and the VIBr series, 

 when present, 4 (3 + 4). There are almost no exceptions to this regular alternation. 

 The centrodorsal is in shape like an Hippasteria phrygiana, not as j-et having become 

 sharply stellate. 



One of the specimens from the Abrolhos Islands, as recorded by Dr. H. L. Clark, 

 is small, with 34 arms 60 mm. long. On 3 of the raj-s the IIBr series are 4 (3 + 4), the 

 IIIBr series are 2, and the IVBr series are 4 (3 + 4) again. On a fourth ray, on one 

 side, the IIIBr series is 4(3 + 4) and the IVBr series is 2. On the fifth ray both of the 

 IIBr series are 2, and the IIIBr series are 2 also. The centrodorsal is flat, less than 

 3 mm. in diameter. There are II cirri; the larger is broken, and the smaller has 15 

 very short and slightly swollen segments. 



The other specimen from the Abrolhos Islands has 57 arms which are 60 mm. 

 long. The cirri are XV, 15; but they have the appearance of being fugaceous, and the 

 small thin centrodorsal adds weight to such an impression. 



The color of the former in alcohol is light wood brown and of the latter a very 

 deep olive green, with the yo\mg arms and the cirri pale brown or dirtj' cream color. 



Localities. — Albatross st&tion 5254; Gulf of Davao; Linao Point bearing N. 44° E., 

 0.7 mile distant (lat. 7° 05' 42" N., long. 125° 39' 42" E.); 38 meters; sand and coral; 

 May 18, 1908 [A. H. Clark 1909] (1, U.S.N.M., 35034). 



Albatross station 5252; Gidf of Davao; Linao Point bearing N. 22° E., 1.5 miles 

 distant (lat. 7° 04' 48" N., long. 125° 39' 38" E.); 51 meters; coral; May 18, 1908 

 [A. H. Clark, 1909] (1, U.S.N. M., 34995). 



Amboina; Pi'ofessor Strubell [Reichensperger, 1913]. 



No locality [P. H. Carpenter, 1881, 1888; A. H. Clark, 1911, 1912] (1, L. M.). 



Mer, Murray Islands, Torres Strait; outer portion of the southwestern reef; 

 33 meters; H. L. Clark, October 1913 [H. L. Clark, 1915, 1921] (1, M. C. Z., 521). 



.4/er<,- Port Molle, Queensland; 22-30 meters [Bell, 1SS4; A. H. Clark, 1911, 1912, 

 1913] (1, B. M.). 



Abrolhos Islands (Houtmans Rocks), Western Australia [11. L. Clark, 1914] 

 (2. W. A. M.). 



Geographical range. — From the Philippines southward to Port MoUe, Queens- 

 land, and the Abrolhos Islands, Western Australia. 



Bathymetrical range. — Littoral and sublittoral; from the shore line down to 51 

 meters. 



History. — This species was originally described by Dr. P. H. Carpenter from a 

 specimen without locality in the Lej'den Museum in 1881. A specimen dredged by 

 the Alert at Port MoUe, Queensland, was recorded by Prof. F. Jeffrey Bell in 1884. 



In 1909 I recorded specimens from 2 Albatross stations in the Philippines, in 

 1911 and again in 1912 I published notes on the type specimen at Leyden, and in 

 1913 I confirmed Bell's identification of the Alert specimen from Port Molle. 



