MUSEUM OF COMPARATIVE ZOOLOGY. 71 
ments of another specimen of the same annelid, natural size. These 
figures are mostly from alcoholic specimens, somewhat restored as to 
positions. From the collection of the U. S. Fish Commission. 
Fig. 1a. Sagartia abyssicola. Expanded. 
“ 1b. The same. Partially contracted. 
“ 1c. The same. Expanded and also showing the acontia (a) protruded from 
the pores (cénclide) in the sides of the body. From alcoholic specimens. 
“ 2. Sagartia Acanelle V. Side view of a specimen covering the terminal part 
of a branchlet, a, b, of Acanella, Enlarged 2 diameters. 
“ 2a. The same. Side view of a smaller, partially contracted specimen on the 
middle of a branchlet. Enlarged 14 diameters. From alcoholic speci- 
mens. 
“ 3. Sagartia spongicola. Nearly vertical view of a specimen not fully ex- 
panded. Natural size, from life. 
“4. Actinauge nexilis V. Four contracted alcoholic specimens attached to 
and completely covering the distal portion of the axis of a mutilated 
Balticina Finmarchica. a, side view of the terminal one, showing how 
the basal membrane extends over the end of the axis of the Balticina ; 
d, basal view, showing the suture by which the edges of the basal disk 
unite to clasp the axis. Natural size. 
“ 6. Thesame. Top view of another less contracted alcoholic example, from 
the tip of a mutilated Balticina. Natural size. 
“6. Actinauge nodosa. Side view of a partially contracted, medium-sized ex- 
ample of the commonest or normal form, but with a bulbous base, 
enclosing mud. From an alcoholic specimen. One half natural size. 
“7. The same, var. tuberculosa V. Side view of a moderate-sized example, 
contracted in alcohol. Natural size. This specimen was from the fish- 
ing banks, off Nova Scotia. 
“8. The same, var. coronata V. Side view of a contracted alcoholic specimen, 
from the Blake collection. Natural size. 
“ 8a. The same specimen. Top view. Enlarged 2 diameters. 
“ 9. Synanthus mirabilis V.(%) Portion of the dead axis of Paramuricea grandis 
entirely covered by the confluent individuals of this actinian. Enlarged 
2 diameters. From an alcoholic example. 
PLATE VII. 
Fig. 1. Urticina perdix V. Side view of an expanded specimen, of medium size, 
from life. One half natural size. 
“ la. The same. Mouth and segment of disk, with tentacles, of a larger exam- 
ple, from life. Natural size. These drawings were made from the 
original type-specimens, dredged off Martha’s Vineyard by the U. S. 
Fish Commission, and kept alive for several weeks in aquaria. 
“ 2. Actinostola callosa V. Side view of a medium-sized example, from life. 
One half natural size. From a specimen dredged by the U. S. Fish 
Commission. 
