A. E. Verrili—The Bermuda Islands; Coral Reefs. 305 
Plexaura flavida (Lam.) Val. Figure 148. Plate xxxva, fig. 4, spicules. 
Gorgonia flavida Lam., Hist., ii, p. 318; 2d ed., p. 496. Lamx., Plyp. Flex., 
p. 402. Dana, Zodph., p. 664, 1846. 
Plexaura flavida Edw. and Haime, Corall., i, p. 153. K6lliker, Icones, p. 188, 
pl. xiii, fig. 6, 1865 (spicule from type). 
? Eunicea ramulosa Ehr., op. cit., p. 189, Dana, Zodph., p. 665. Verrill, these 
Trans., vol. ix, p. 569. 
Gorgonia spicifera Dana, Zooph., p. 665 (non Lamk.). 
Of this species, which is rather rare in collections, I have seen a 
few specimens from Bermuda, but did not find it myself. 
It has one or two main stalks from which numerous slender, terete, 
divergent branches arise on all sides, so as to produce a somewhat 
149 147 148 
Figure 147.—Plexaura homomalla, surface with polyps contracted; 148.—P. 
flavida, x 4; 149.—P. bicolor, x 4. All from dry specimens by A. H. V. 
plume-like form, when full-grown. The main stems may be 6 inches 
to a foot or more high ; the side branches or branchlets vary from 
2 to 5 inches in length, but are mostly 3 to 4 inches (75 to 100™™) 
and about 2 to 3™™ in diameter. The calicles are very small, with 
the borders slightly raised, especially on the lower side; they are 
about equally distributed on all sides of the branchlets, and not very 
close together, though numerous. The color is usually yellow, 
varying from pale yellow to light olive-yellow. 
It appears to be rather uncommon in the West Indies. My son, 
A. H. Verrill, has recently sent several well grown specimens from 
Dominica Island. There are specimens from other West Indian 
localities and from Colon, in the Yale Museum. 
Plexaura Esperi, nom. nov. Figures 153-155. Plate xxxvia, fig. 4, spicules, 
Plexaura antipathes Kélliker, op. cit., p. 138, pl. xviii, figs. 21, 22 (non Linn. sp.). 
Gorgonia antipathes (pars) Esper, Pilanz., Gorg., pl. xxiii, only (non Linn. 
nec Pallas), Determined by comparison of spicula from Esper’s original 
specimen. 
A small specimen, collected in 1901, agrees closely in size, mode of 
branching, and character of calicles with Esper’s figure (pl. xxiii), 
