a 
MUSEUM OF COMPARATIVE ZOOLOGY. 55 
Actinauge longicornis, var. Caribzea VERRILL, nov. 
Grows to very large size. One of the largest has the base clasped around a 
bundle of large silicious sponge spicules, like those of Hyalonema. This in 
alcohol has the body four inches in breadth; the base along the sponge spicula 
is six inches. Other large specimens hold globigerina and pteropod ooze in 
the bulbous base. The young mostly clasp branches and stems of Gorgonie, 
the basal edges uniting in a firm suture even when very small. 
It resembles, when in alcohol, certain specimens of longicornis. It has a 
similar thick, parchment-like, white, naked integument, which is more or less 
reticulated by wrinkles, leaving slightly marked squarish elevations, on the mid- 
dle of which there is often a small round wart. 
Rather small, smooth, rounded, persistent verruce are sparingly distributed 
over the surface, above; they are arranged in longitudinal rows, and become 
smaller and more remote below, fading out above the base; some of the upper- 
most are often surmounted by a small, central, dark brown patch of a chitinous 
epidermal coating. The submarginal zone is crossed by numerous elevated 
ridges, which run to and join the bases of the tentacles, as in the typical form; 
but in most of the specimens dissected, they become larger and more swollen 
next the tentacles, and run far up their outer sides, so as to cause their bases 
to be more swollen than in the similarly preserved typical specimens, but 
these differences may be due largely to differing states of contraction. The 
tentacles seem to be fewer, relatively larger and longer, and more concentrated 
toward the margin, but of this it is not possible to judge accurately from alco- 
holic specimens. 
Traces of orange-brown color remain, on some specimens, as a brown ring 
defining the lower edge of the submarginal zone, and as median stripes on the 
longitudinal ridges of this zone, and on their continuations on the outer bases 
of the tentacles. 
The following specimens were dredged by the Blake, 1878-80. 
Station. Fathoms. Locality. Specimens. 
1878-79. 
260 291 Off Grenada 1 large, on sponge 
spicules. 
269 124 Off St. Vincent 2 j. on Gorgonia. 
295 180 Off Barbados 21. clasping mud. 
296 84 Off Barbados bliyt ¥ e 
1880. 
Xvi. 600 N. Lat. 18° 20’ 30”, W. Long. 87°16'40” 21. « S 
Actinauge nexilis VERRILL, sp. nov. 
Plate VI. Figs. 4, 5. 
Column low and broad in preserved specimens, with a firm integument, to 
which a brown epidermal film usually adheres, especially toward the base and 
