262 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



The hook which represents the first ventral arm spine is rather 

 stout, provided with two or three thick and stout points, and con- 

 forms to the type most frequent among the species of Ophiothrix (pi. 

 101, fig. 6c). The tentacle scale is large and stout, somewhat elon- 

 gated, and terminates in a stout point which is broad at the base 

 and very sharp (fig. §d). 



Ophiothrix purpurea has been met with in a number of localities 

 in the Indo-Pacific region, among the Sunda Islands, at New Cale- 

 donia, on the southwest coasts of Australia, at Madagascar, etc. It is 

 a littoral species, though the Siboga dredged it at very varying 

 depths down to 113 meters (62 fathoms), and one specimen from 

 station 65a (lat. 7° S., long. 120° 34' E.) bears a label reading 400 to 

 120 meters (220 to 68 fathoms). 



OPHIOTHRIX PUSILLA Lyman. 



Plate 40, figs. 6, 7 ; plate 101, fig. 8. 

 See for bibliography : 



Ophiothrix pusilla Kcehler ('05), p. 85, pi. 9, fig. 7; ('07), p. 337.— H. L. 

 Clark ('15), p. 278. 



Localities. — Albatross station 5158; Sulu (Jolo) Archipelago; 

 Tawi Tawi Group; Tinakta Island (N.) bearing N. 89° W., 3.52 

 kilometers (1.9 miles) distant (lat. 5° 12' 00" N., long. 119° 54' 30" 

 E.) ; 22 meters (12 fathoms) ; February 21, 1908; crs. S., Sh. 



Two specimens (Cat. No. 40957, U.S.N.M.). 



Albatross station 5215; east of Masbate Island; Palanog Light 

 bearing S. 5° 30' E., 15.75 kilometers (8.5 miles) distant (lat. 12° 31' 

 30" N., long. 123° 35' 24" E.) ; 1,105 meters (604 fathoms) ; April 21, 

 1908 ; gn. M. 



One specimen. 



Albatross station 5218; between Burias and Luzon; Anima Sola 

 Island (E.) bearing N. 10° W., 3.71 kilometers (2 miles) distant 

 (lat. 13° 11' 15" N., long. 123° 02' 45" E.) ; 36 meters (20 fathoms) ; 

 April 22, 1908 ; crs. S. 



Two specimens (Cat. Nos. 40954, 40956, U.S.N.M.). 



Albatross station 5249 ; Gulf of Davao ; Laneng Point bearing N. 

 1.85 kilometers (1 mile) distant (lat. 7° 06' 06" N., long. 125° 40' 

 08" E.) ; 42 meters (23 fathoms) ; May 18, 1908; Co., S. 



One specimen (Cat. No. 40955, U.S.N.M.). 



Albatross station 5400; north of Cebu; Tanguingui Island Light 

 bearing N. 77° W., 41.70 kilometers (22.5 miles) distant (lat. 11° 24' 

 24" N., long. 124° 05' 30" E.) ; 46 meters (25 fathoms) ; May 16, 

 1909; S. Sh. 



One specimen (Cat. No. 40958, U.S.N.M.). 



