OPHIURANS OF THE PHILIPPINE AND ADJACENT WATERS. 281 



more or less obliterated toward the distal border of each upper arm 

 plate. 



The specimen from station 5593 has a general very light pinkish 

 gray color; the two others have the arms more red; the arm spines 

 are always uncolored and perfectly transparent. 



In the three specimens the radial shields are provided over almost 

 their whole area with more or less numerous club spines which leave 

 the distal region only naked. 



The type of O. vitrea was found at Amboina; the specimens col- 

 lected by the Investigator in the Indian Ocean came from the 

 Andaman Islands and the Malabar coast from a depth of 36 fathoms. 



OPHIOGYMNA ELEGANS Ljun K man. 



Plate 43, figs. 3-8 ; plate 103, fig. 4. 



Ophiogymna elegans LJUNGMAN ('66), p. 163. H. L. CLARK ('15), p. 286; 



pi. 12, figs. 7, 8. 

 Ophiocampsis inermis KCEHLEB ('05), p. 115, pi. 13, fig. 3. 



Localities. Albatross station 5151; Sulu (Jolo) Archipelago, 

 Tawi Tawi Group; Sirun Island (C.) bearing N. 58 E., 35.77 kilo- 

 meters (19.3 miles) distant (lat. 5 24' 40" N., long. 120 27' 15" 

 E.) ; 44 meters (24 fathoms) ; February 18, 1908; co. S., Sh. 



Five specimens (Cat, Nos. 41284, 41285. E. 62, U.S.N.M.). 



Albatross station 5152; Sulu Archipelago, Tawi Tawi Group; 

 Pajumajan Island (W.) bearing S. 2 W., 3.71 kilometers (2 miles) 

 distant (lat. 5 22' 55" N., long. 120 15' 45" E.) ; 62 meters (34 

 fathoms) ; February 18, 1908; wh. S. 



Two specimens (Cat. No. E. 59, U.S.N.M.). 



Albatross station 5154; Sulu Archipelago, Tawi Tawi Group; 

 Bakun Point bearing S. 11 W., 1.30 kilometers (0.7 mile) distant 

 (lat. 5 14' 50" N., long. 119 58' 45" E.) ; 22 meters (12 fathoms) ; 

 February 19, 1908 ; co. S. 



Seven specimens (Cat. Nos. E. 63, E. 65, U.S.N.M.). 



Albatross station 5165; Sulu Archipelago, Tawi Tawi Group; Ob- 

 servation Island bearing N. 70 W., 11.86 kilometers (6.4 miles) dis- 

 tant (lat, 4 58' 20" X., long. 119 50' 30" E.) ; 16 meters (9 fath- 

 oms) ; February 24, 1908; Co. 



One specimen (Cat, No. E. 64, U.S.N.M.). 



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. 



Fifteen specimens (Cat. Nos. E. 60, E. 61, E. 66, U.S.N.M.). 



Notes. The genus Ophiocampsis established by Duncan in 1886 

 for an ophiuran from the Mergui Archipelago, to which he gave the 

 name of O. pellicula, is evidently identical with the genus Ophio- 



