434 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



OPHIOMIDAS REDUCTUM Kcehler. 



Ophiomidas reductum Kcehler ('04), p. 27, pi. 5, figs. 6-8. 

 Ophiomidas reductus H. L. Clabk ('15), p. 342. 



Locality. — Albatross station 5668 ; Macassar Strait ; Mamuju Island 

 (E.) bearing S. 31° E., 19.64 kilometers (10.6 miles) distant (lat. 2° 

 28' 15" S., long. 118° 49' 00" E.) ; 1,648 meters (901 fathoms) ; De- 

 cember 29, 1909 ; gy. M. 



One specimen. 



Notes. — The diameter of the disk is 5 mm. It is a little smaller 

 than the two specimens collected by the Sibogra, upon which I 

 established the species and in which the diameter was from 6 mm. 

 to 7 mm. These were captured in 8° 04' 07" S. latitude, 118° 44' 03" 

 E. longitude, at a depth of 2,060 meters (1,125 fathoms). 



Ophiomidas reductum has not been otherwise found. 



OPHIOLEPIS ANNULOSA (Blainville). 



See for bibliography: 



Ophiolepis annulosa Kcehler ('05), p. 17; ('05a), p. 184; ('07), p. 287. — H. 



L. Clark ('08), p. 289.— Matsumoto ('17), p. 300, fig. 82. 

 Ophiolepis superba H. L. Clark ('15), p. 343; ('15a), p. S9. 



Localities. — Batan Island; tide pools; June 5, 1909. 



One specimen (Cat. No. E. 313, U.S.N.M.). 



Ficas Island; San Miguel Harbor; April 21, 1908. 



One specimen (Cat. No. E. 312, U.S.N.M.). 



Notes. — I see no benefit whatever in the change of the specific 

 name which H. L. Clark has proposed in order to avoid confusion 

 between the Ophiura annulosa of Blainville and the Ophiura an- 

 nulosa of Lamarck, these two species having been for a very long 

 while placed in two different genera and being universally known. 

 Matsumoto also has rejected the change of name suggested by H. L. 

 Clark. 



OPHIOLEPIS IRREGULARIS Brock. 



Plate 80, figures 1, 5, 10, 11. 



Ophiolepis irregularis Brock ('88), p. 475. — Bell ('94), p. 395. — Kcehler 

 ('05), p. 17.— H. L. Clark ('15), p. 343. 



Locality. — Albatross station 5253; Gulf of Davao; Linao Point 

 bearing N. 22° E., 2.78 kilometers (1.5 miles) distant (lat. 7° 04' 48" 

 N., long 125° 39' 38" E.) ; 51 meters (28 fathoms) ; May 18, 1908 ; Co. 



One specimen (Cat. No. 40929, U.S.N.M.). 



Notes. — The diameter of the disk is 9 mm. Two of the arms are 

 almost complete; the three others are broken off at some distance 

 from the base. 



The specimen does not quite agree with Brock's description, and it 

 also differs slightly from the examples collected by the Siboga, of 



