OPHIURANS OF THE PHILIPPINE AND ADJACENT WATERS. 437 



miles) distant (lat. 8 46' 00" N., long. 123 32' 30" E.) ; 320 meters 

 (175 fathoms) ; August 9, 1909; Glob. 



Nine specimens (Cat. No. 41353, U.S.N.M.). 



Albatross station 5541; Tagolo Light bearing S. 65 W., 23.54 

 kilometers (12.7 miles) distant (lat. 8 49' 38" N., long. 123 34' 

 30" E.) ; 401 meters (219 fathoms) ; August 20, 1909; fne. S., brk. 

 Sh. 



Three specimens (Cat. Nos. 41347, 41348, 41352, U.S.N.M.). 



Philippines; without further data. 



One specimen (Cat. No. 41351, U.S.N.M.). 



Notes. The diameter of the disk averages 5 mm. and rarely ex- 

 ceeds 6 mm. 



The arms are very long and very slender, and they reach 60 mm. 

 in length in the specimens in which the diameter of the disk is 5 

 mm. This is the only remark which I have to add to the descrip- 

 tion which I gave of this species in 1904 based upon the specimens 

 collected by the Siboga; as the Albatross specimens are a little larger 

 and better preserved than those from the Siboga collection, they per- 

 mit the appreciation of this arm length, which seems to constitute 

 one of the characters of the species; since the Siboga individuals 

 had all the arms incomplete, I was not able to measure their length. 

 This length may be judged on one of the two photographs which I 

 give here (pi. 79, fig. 2) of a specimen from station 5116. 



I find also that there always occurs toward the point of contact 

 of the two oral plates of each pair, a group of small granules, in- 

 constant in number, which appear to be rather decidous. I did not 

 observe these granules in the Siboga individuals and it is probable 

 that they had been rubbed off. 



Ophiopallas paradoxa was discovered by the Siboga between 

 0-5 S. latitude and 119-132 E. longitude, at depths varying from 

 204 to 450 meters (112 to 270 fathoms). It has not been seen since. 



OPHIOPALLAS VALENS, new species. 



Plate 80, figs. 2-4. 



Locality. Albatross station 5178; vicinity of Komblon; Point 

 Origon (N.) bearing S. 5 E., 4.26 kilometers (2.3 miles) distant 

 (lat. 12 43' 00" N., long. 122 06' 15" E.) ; 143 meters (78 fathoms) ; 

 March 25, 1908 ; fne. S. 



A single specimen (Cat. No. 41354, U.S.N.M.). 



Description. The specimen is in very good condition; two of the 

 arms are entire, and the three others are preserved for a rather large 

 portion of their length. The diameter of the disk is 13 mm., and 

 the arms are 45 mm. long. 



The disk is rather thick, but its two surfaces are plane and paral- 

 lel; the outline is subpentagonal. The dorsal surface is rather 



