MUSEUM OF COMPAPwATIVE ZOOLOGY. 47 



mens, with long filiform tips, at other times shorter, subacute ; their length 

 even in preserved specimens often exceeds the height, or the transverse 

 breadth of the body ; the inner ones are larger and stouter ; the outermost are 

 much smaller, but long and slender, or almost filiform. 



The color of the column varies from pale salmon to deep salmon and brovi^n- 

 ish orange, corresponding, in all cases, very closely with the color of the 

 Acanella on which it is found. Tentacles usually darker than the body, often 

 orange or orange-brown, sometimes light salmon, but frequently dark purplish 

 brown, with paler tips. Disk similar to the tentacles, usually salmon radially 

 streaked with brown ; mouth large, often everted, frequently brown. 



The larger examples have the longer diameter of the body above the base, 20 

 to 25 mm. ; transverse diameter, 12 to 15 mm. ; height, 10 to 15 mm. ; length 

 of tentacles, 10 to 15 mm. 



The following specimens were dredged by the Blake in 1880 : — 



Station. Fathoms. N. Lat. W. Long. Specimens. 



306 524 41° 32' 50" 65° 55' Several, on Acanella. 



307 980 41° 29' 45" 65° 75' 10" " 



308 1242 41° 24' 45" 65° 35' 30" « 



309 304 40° 11' 40" 68° 22' " 



310 260 39° 59' 16" 70° 18' 30" " 

 312 466 39° 50' 45" 70° 11' " 



This species has also been dredged at numerous stations, in 219 to 506 

 fathoms, off Martha's Vineyard, by the U. S. Esh Commission, often in large 

 numbers, on Acanella, which is common there. 



It has also often been brought in by the Gloucester fishermen, since 1878, 

 from many localities on the deep fishing banks, off Nova Scotia, and from the 

 Grand Bank. A similar species, possibly identical, occurs on deep-water gor- 

 gonians dredged by the Blake among the Antilles. 



Sagartia spongicola Vekrill, sp. nov. 



Plate VI. Fig. 3. 



A small, rather cylindrical, smooth, rosy or flesh-colored species, with a 

 moderate number of tentacles, which are not very long. 



Column, in extension, higher than broad, round, usually nearly cylindrical, 

 but frequently changing in •form. Base small, often rather broader than the 

 column, flat, or clasping sponges, hydroids, etc. Tentacles not very numerous, 

 arranged in two, three, or more rows, close to the margin, leaving a large part 

 of the disk bare ; they are rather small, a little stout, not very acute, variously 

 curled. Acontia have not been seen ejected, but there are a few small, pit-like 

 openings on the sides, which appear to be pores (cinclidae). Some specimens 

 show small verrucse near the summit. The internal lamellae show as white 

 lines through the sides of the body. 



