Actinaria g 133 



^ Recorded from Henley harbour, Chateau bay, southern Labrador, by A. 

 b. i'aijkard, 1865. Gulf of St. Lawrence, off Prince Edward island (Whit- 

 eaves). 



Torrey, 1902, described specimens from Dutch harbour, Unalaska (Harri- 

 man Alaska Exped.) 



This species has been found in very few places, and usually very sparingly 

 m Its locahties. In the vicinity of Eastport, Me., at a point just south of Dog 

 island, I once succeeded (1861) in obtaining several hundred specimens in a 

 very short time by turning over the large stones. They were seen projecting 

 from the mud, chiefly near the edges of the stones, looking much like some 

 species of worms. As many as fifteen to twenty were sometimes found under 

 a single stone. They here occupy the lower third of the littoral zone. When 

 put m sea-water they expand readily and move about with worm-like gyrations. 

 W^hen touched, they suddenly jerk away the upper part of the body before 

 withdrawing the tentacles. 



Drillactis. New genus. 



Type, Edwardsia pallida Verrill. Body long, slender, changeable, worm- 

 like, integument soft, with no adherent epidermal coating on the column; scapus 

 and capitulum not notably differentiated; tentacles 18 to 24 or more, changeable 

 in form. 



Drillactis pallida. New name. 



Edwardsia pallida Vereill, Notice of Recent Addit. to Mar. Invert., Part I, 

 in Proc. National Mus., II, p. 198, 1879. 



Halcampa pallida Andres, op. cit., 1884, p. 105. 



Plate XXI; Figures 4, 4a. 



A long, slender, soft, flaccid, gray or whitish species. Column smooth, 

 soft, destitute of any permanent investment, but sometimes with grains of 

 sand, slightly adherent; surface faintly longitudinally sulcated, and sometimes 

 finely wrinkled transversely. The form is changeable, elongated, nearly cylindri- 

 cal, but often tapered at the posterior end, and often swollen in some places. 



Tentacles 12 to 24, often 18, very changeable in form, varying from short 

 fusiform or club-shapes to long and slender forms, which are often curled and 

 two to three times as long as the diameter of the disk, or even longer, often 

 acute at the tips, or when swollen the tip may be acuminate. (See PI. XXI, 

 figs. 4a, b-i). 



The tentacles are usually pale greenish or grayish white, often with a pale 

 olive-green central line, interrupted by a line of opaque white spots, often ten 

 to twelve on a tentacle, or sometimes by transverse lines of white; the central 

 dark line is sometimes absent. Column is translucent, dull gray or grayish 

 white, or pale flesh-colour, striped with narrow flake-white lines, due to the 

 mesenteries, between which the dark or purphsh internal organs show through; 

 a circle of lunate spots of opaque yellowish white is situated just below the 

 tentacles, corresponding with the broader longitudinal stripes. Disk is often 

 much protruded, yellowish white, radiated with opaque white spots; or these 

 spots may be prolonged into whitish lines, fading out lower down; peristome 

 sometimes brownish. 



Length up to about 4 inches while living and in extension (80 to 100 mm.); 

 diameter 4 to 6 mm. Tentacles may extend to 12-16 mm., or two to three 

 times the diameter of the body. 



