OPHIURANS OF UNITED STATES NATIONAL MUSEUM. 23 



Albatross station 2779. Jan. 23, 1888. Lat. 53 06' S.; long. 70 40' 30" W.; 

 77.5 fathoms; gn. oz.; temp. 46.9 F. Two specimens. 



Albatross station 2780. Feb. 2, 1888. Lat. 53 01' S.; long. 73 42' 30" W.; 

 369 fathoms; gn. m.; temp. 46.9 F. Six specimens. 



Albatross station 2783. Feb. 6, 1888. Lat. 51 02' 30" S.; long. 74 08' 30" 

 W.; 122 fathoms; bu. m.; temp. 47.9 F. Many specimens. 



Albatross station 2784. Feb. 8, 1888. Lat. 48 41' S.; long. 74 24' W.; 194 

 fathoms; bu. m.; temp. 51.9 F. Many specimens. 



OPHIOGLYPHA ROBUSTA (Ayres). 



See for bibliography : 

 Kcehler (09), p. 154. 



Albatross station 2055. Aug. 30, 1883. Lat. 42 32' N.; long. 68 17' W.; 

 99.5 fathoms; bu. m., s., and crs. g. One little specimen. 



OPHIOGLYPHA SARSII (Liitken). 



Plate 1, figs. 5-6. 

 See for bibliography: 



Grieg (07), p. 15. 



Kcehler (09), p. 155. 



Sttssbach and Breckner (11), p. 248. 



H. L.Clark (11), p. 37. 



Albatross station 2020. May 21, 1883. Lat. 37 37' 50" N.; long. 74 15' 

 30" W.; 143 fathoms; bu. m. fne. s. One specimen. 



Albatross stations 2582-2583. Sept. 18, 1885. Lat. 39 50' N.; long. 71 

 43' W.; 131-137 fathoms; gn. m. s.; temp. 47.2 F. Numerous specimens. 



Albatross station 2668. May 5, 1886. Lat. 30 58' 30" N.; long. 79 38' 

 30" W.; 294 fathoms; gy. s. dd. co.; temp. 46.3 F. One specimen. 



Albatross station 3456. Sept. 1, 1891. Lat. 48 31' 15" N.; long. 124 43' 

 15" W; 136 fathoms; gy. s.; temp. 44.2 F. One specimen. 



Fish Hawk station 1038. Sept. 21, 1881. Off Marthas Vineyard, Massachusetts; 

 146 fathoms; s. and sh.; temp. 47 F. Two specimens. 



Fish Hawk station 1111. Aug. 22 , 1 882 . Off Marthas Vineyard, Massachusetts ; 

 124 fathoms; fne. s.; temp. 47 F. Numerous specimens. 



East coast of North America. One specimen. 



The specimens from stations 2582-2583 were associated in almost equal num- 

 ber with some Ophiocten hastatum; they are all very small, the diameter of their 

 disks never exceeding 12-13 mm.; in some of them this diameter ranged between 

 2 and 4 mm. I reproduce here two of these small specimens (pi. 1, figs. 5-6). 

 The one from station 3456, the disk of which is 7 mm. in diameter, has short and 

 conical radial papillae. 



The variations of 0. sarsii are well known, and recently several writers, Grieg, 

 Mortensen, H. L. Clark, and others have written exhaustively about them. The 

 only variations which I observe in the collection of the National Museum refer to 

 the upper plates of the disk which may be more or less protruding. 

 60G1 Bull. 8414 3 



