OFHIURANS OF THE PHILIPPINE AND ADJACENT WATERS. 277 



merguiensis Duncan as identical with O. ciliaris; I have already 

 criticized this approximation ('04a, p. 102), and I shall not return 

 to it. 



OPHIOTHRIX STRIOLATA Grube. 



Plate 33, figs. 1, 2 ; plate 34, fig. 5 ; plate 102, fig. 1. 



See for bibliography : 



OpMoihrix striolata Kcehleb ('05), p. 76, pi. 15, fig. 9; ('07), p. 338; ('07b), 

 p. 253.— H. L. Clark ('15), p. 279. 



Localities. — Albatross station 5139; in the vicinity of Jolo; Jolo 

 Light bearing S. 51° W., 6.67 kilometers (3.6 miles) distant (lat. 6° 

 06' 00" N., long. 121° 02' 30" E.) ; 36 meters (20 fathoms) ; Feb- 

 ruary 14, 1908 ; co. S. 



One specimen (Cat. No. 41121, U.S.N.M.). 



Albatross station 5146; Sulu (Jolo) Archipelago, in the vicinity of 

 Siasi; Sulade Island (E.) bearing N. 18° W., 6.30 kilometers (3.4 

 miles) distant (lat. 5° 46' 40" N., long. 120° 48' 50" E.) ; 44 meters 

 (24 fathoms) ; February 16, 1908 ; co. S., Sh. 



Two specimens (Cat. No. E. 185, U.S.N.M.). 



Albatross station 5147; Sulu Archipelago, in the vicinity of Siasi; 

 Sulade Island (E.) bearing N. 3° E., 15.57 kilometers (8.4 miles) 

 distant (lat, 5° 41' 40" N., long. 120° 47' 10" E.) ; 38 meters (21 

 fathoms) ; February 16, 1908; co. S., Sh. 



One specimen (Cat. No. 41119, U.S.N.M.). 



Albatross station 5159; Sulu Archipelago, Tawi Tawi Group; 

 Tinakta Island (N.) bearing N. 82° W., 2.59 kilometers (1.4 miles) 

 distant (lat. 5° 11' 50" N., long. 119° 54' 00" E.) ; 18 meters (10 

 fathoms); February 21, 1908; co. S. 



One specimen (Cat. No. E. 184, U.S.N.M.). 



Albatross station 5355; north Balabac Strait; Balabac Light bear- 

 ing S. 61° W., 30.76 kilometers (16.6 miles) distant (lat. 8° 08' 10" 

 N., long. 117° 19' 15" E.) ; 80 meters (44 fathoms) ; January 5, 1909; 

 Co., S. 



One specimen (Cat. No. 41123, U.S.N.M.). 



Albatross station 5401; north of Cebu; Tanguingui Island Light 

 bearing N. 79° W., 42.62 kilometers (23 miles) distant (lat. 11° 24' 

 45" N., long. 124° 06' 00" E.) ; 55 meters (30 fathoms) ; March 16. 

 1909 ; f ne. S. 



One specimen (Cat. No. E. 186, U.S.N.M.). 



No locality. 



Two specimens (Cat. Nos. 41120, 41122, U.S.N.M.). 



Notes. — The specimen from station 5146 is very typical. The disk 

 has a diameter of 13 mm., and the arms are almost 60 mm. long. 

 The radial shields are not very large, and the interradial regions of 



