Descriptive Notes: 
Colon)? as a whole. Six colonies, of which the largest is 19 cm. in height by 13 cm. in 
width. The umbels do not combine in hemispherical masses; the contour of the polyparium is 
almost continuous; there is a considerable flattening in one plane; the surface of the individual 
umbels varies from convex to concave — a feature to which we cannot attach importance. The 
specimen should be referred to Ivukenthal's florida-gronp and therein to the species D. brevirama. 
Branching. The lowest branches are slightly foliaceous, and form an interrupted collar. 
Colouring. The general surface is yellow-white, the polyps yellow, the branches showing 
strong purplish spiculation. 
Polyp stalks are short, a little less than 1 mm. Polyps in small bundles. The anthocodial 
armature of 8 points shows 6—8 converging pairs of small spicules, none projecting. 
The supporting bundle has one strong predominating spindle up to 3 mm. in length, 
projecting for about 0.75 mm. 
Other spicules. The cortex of the branches shows numerous long, straight, or curved 
bright red spindles, covered with short, rather delicate, sharply conical spinules, particularly 
crowded at the ends. The cortex of the stalk region shows (a) numerous coarsely tuberculate 
broad spindles, straight or curved; (b) asymmetrical bent spindles, with the tubercles stronger on 
the convex side; ( c ) spindles with one end broadened out; (d) irregular tuberculate discs, some 
almost spherical, others almost stellate; ( e ) regular and irregular triradiates (some very massive). 
The canal-walls in the stalk region show numerous strong triradiates and curiously 
irregular quadriradiates; all roughly tuberculated, while besides these are minute irregularly 
radiate forms inclining to be smooth. 
Locality: Station not recorded. 
A much smaller younger colony, with a polyparium 4 cm. by 4.6 cm., is worthy of 
notice because of certain slight divergences. The umbellate character of the twigs is much less 
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pronounced, the whole branching is looser, the uppermost pair of spindles in each point some¬ 
times project to a very slight extent.. The‘specimen suggests that young stages of members of 
the Umbellatae may be somewhat divaricate in their general mode of branching. 
On the other hand, the collection includes another colony, with polyparium 4.7 cm. by 
4.7 cm. in maximum height and breadth, which is interesting in showing the very opposite 
vegetative characters; for it is markedly umbellate in the branching of the twigs and extremely 
dense in the general branching, so presenting a uniform compact surface. Yet the spiculation 
and the anthocodial armature are identical with those above described. In the recesses of the 
polyparium there lay a large Ophiuroid. 
Locality: Station 164. 
Still another colony, at first sight divergent, agrees so thoroughly in anthocodial archi¬ 
tecture and spiculation that separation appears to us impossible. The somewhat looser umbels 
show a marked tendency to grouping in hemispherical bunches, especially on one side of the 
colony, the contour is somewhat broken up; the lowest branches are slightly, foliaceous; the 
sterile stalk has been broken off, leaving only a short stump; the general colouring is yellow- 
white, with white spindles in the polyps and faint rose tips to many of the supporting bundles. 
