298 RECENT OPHIURANS. 



brown; some of the blotches have an orange tinge; arms yellowish white or 

 dirty whitish with about a dozen widely spaced narrow dusky bands. 



HoLOTYPE (M. C. Z. 3503). Dutch East Indies : Strait of Macassar, Borneo 

 Bank, 33 fms. Siboga Station 77. 



This specimen was sent to the Museum by the Amsterdam Museum as 

 0. pantherina Koehler. Noting, however, that Koehler does not record pan- 

 therina from Station 77, I examined the specimen critically and decided that 

 the large number of arm-spines absolutely forbade its being assigned to Koehler's 

 species. In the number of arm-spines, this specimen is much like 0. fulva Lyman 

 but the spines are so much more slender, the general appearance of the arm is 

 very different. In coloration also this species is much more like fulva than like 

 pantherina, but in the mouth-parts it is nearer the latter species. 



1035. O. POLYSTICTA, sp. nov. (jroXfe™™!, with many spots). Plate 14, f. 3-5. 



Disk 6 mm. in diameter; arms about 50 mm. long. Disk covered with a 

 coat of very fine scales as usual in the genus. Radial shields long and very 

 narrow, completely separated from each other, parallel or converging distally. 

 Upper arm-plates squarish with rounded corners, about as wide as long, broadly 

 in contact or even somewhat overlapping. Oral shields rounded pentagonal, 

 a trifle wider than long. Adoral plates insignificant. Oral papillae two on 

 each side, large, longer than wide. Tooth-papUlae small and numerous. Under 

 arm-plates squarish, about as wide as long. Side arm-plates small, each with 

 6 slender spines, of which the lowest is longest and considerably exceeds the 

 joint; uppermost shortest but it and the next one are stouter than the two fol- 

 lowing. Tentacle-scales very long and flat, as usual; near middle of arm, 

 they are longer than the width of the arm. Color (dried) : — disk whitish varie- 

 gated with olive; radial shields white, the scales between and on either side 

 dark olive; upper arm-plates gray, as a rule, but at intervals of from 2 to 5 

 joints are whitish plates; upper ends of side arm-plates deep olive, forming a 

 narrow and somewhat broken line along each margin of the upper arm-surface ; 

 there is a deep olive spot (not sharply defined) at the juncture of every two 

 upper arm-plates (hence the name), half on the distal margin of one and half 

 on the proximal margin of the other; arm-spines and lower surface whitish; 

 on each adoral plate and on the jaw-surface, just proximal to oral shield are 

 olive spots (3 to each mouth angle); near the disk, the lower end of the side 

 arm-plate forms a dark spot on each side of the arm-joint. 



HoLOTYPE (M. C. Z. 1566). Off Barbados, 7J-50 fms. Blake Station 287. 



