64 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



I give here two photographs of the Albatross specimen, which 

 show the characters of the species better than my somewhat schematic 

 drawings. 



Under the name of O. anchilabra H. L. Clark has described ('11, p. 

 104) , an ophiuran from the Japanese seas at a depth of 1,679 meters 

 (918 fathoms), which is very close to O. vorax; it differs from it only 

 in its smooth arm spines and in the entirely hidden radial shields. I 

 do not believe that this specific differentiation, based mainly on the 

 condition of the armi spines, can be maintained. These are less 

 strongly denticulated in the Albatross specimen than in those collected 

 by the Investigator, and many of them are even entirely smooth. As 

 for the extension of the granules over the whole surface of the radial 

 shields, or only over the larger part of their surface, exclusive of 

 the distal extremity, that is a mere case of individual variation of no 

 specific importance. 



Matsumoto ('17, p. 117) lists O. anchilabra from Japan without 

 making any comment. 



OPHIOLIMNA PERFIDA (KoeWer). 



Plate 9, figs. 7-9; plate 92, fig. 6. 



Ophiacantha perfida KCEHLER ('04), p. 118, pi. 23, figs. 5, 6. H. L. CLARK 



('15), p. 204. 

 Ophuwantha lamMa H. L. CLARK ('11), p. 231, fig. 108; ('15), p. 199. 



Localities. Albatross station 5119; Balayan Bay and Verde 

 Island Passage; Sombrero Island bearing S. 80 E., 35.03 kilometers 

 (18.9 miles) distant (lat. 13 45' 05" N., long. 120 30' 30" E.) ; 

 721 meters (394 fathoms) ; January 19, 1908; gn. M., S. 



Three specimens (Cat. No. 41185, U.S.N.M.). 



Albatross station 5219 ; between Marinduque and Luzon ; Mompog 

 Island (NE.) bearing N. 35 30' W., 22.70 kilometers (12.25 miles) 

 distant (lat. 13 21' 00" N., long. 122 18' 45" E,) ; 969 meters 

 (530 fathoms) ; April 23, 1908; gn. M. 



One specimen (Cat. No. 41187, U.S.N.M.). 



Albatross station 5444; East coast of Luzon, San Bernardino 

 Strait to San Miguel Bay; Atalaya Point, Batag Island, bearing 

 S. 65 E., 9.45 kilometers (5.1 miles) distant (lat. 12 43' 51" N., 

 long. 124 58' 50" E.) ; 563 meters (308 fathoms); June 3, 1909; 

 gn. M. 



Four specimens (Cat, Nos. 41375, E. 41, U.S.N.M.). 



Albatross station 5445; east coast of Luzon, San Bernardino 

 Strait to San Miguel Bay; Atalaya Point, Batag Island, bearing 

 S. 56 E., 9.82 kilometers (5.3 miles) distant (lat. 12 44' 42" N., 

 long. 124 59' 50" E.) ; 700 meters (383 fathoms); June 3, 1909; 

 gn. M., S. 



One specimen (Cat. No. E. 42, U.S.N.M.). 



