A. EF. Verrill—The Bermuda Islands; Coral Reefs. 307 
Pseudoplexaura crassa (Ellis and Sol.) Wright and Stud. Sea Rod. Figures 
» 
150, 151, 152. Plate xxxiii. Plate xxxvia, fig. 3, spicules. 
Gorgonia crassa Ellis and Sol., p. 91, pl. xviii, fig. 3, 1787. (non Plexaurella 
crassa KOll.), non Dana. 
?Gorgonia porosa Miller. Esper (pars), Pflanz., ii, Gorg., p. 49, pl. x, 1794. 
Plexaura friabilis (the figure, not the descr.) Lamx., Exp. Method., p. 35, 
pl. xviii, fig. 3, 1821 (fig. from Ellis and Sol.), non Lamarck. 
Plexaura macrocythara Lamx., Polyp. Flex., p. 429, 1816. 
Plexaura porosa (pars) Dana, Zooph., p. 670. Edw. and Haime, iii, p. 156, 
1857. 
Plexaura crassa Verrill, Bull. M. C. Zodl., i, p. 34, 1864; Crit. Rem., No. i, 
p. 418, 1868. Hargitt and Rogers, op. cit., 1902, p. 285, pl. iv, figs. 1-12 
(general and spicules). 
? Gorgonia (Plexaura) multicauda Heilprin, Bermuda Is., p. 104 (not of Lam. 
which belongs to Eunicea, t. Edw. and H.). 
Pseudoplexaura crassa Wright and Studer, Voy. Challenger, xxxi, p. 142, 
pl. xxxiii, fig. 3 (spicules). 
This, when well grown, is sometimes four to five feet high, with 
a basal trunk 1.5 to 2 inches in diameter ; it is repeatedly forked 
150 151 152 
Figure 150.—Pseudoplexaura crassa, portion of a small branch, with wide open 
calicles, +24. 
Figure 151.—The same, portion of branch with the polyps expanded, x about 12. 
Both drawn by A. H. V. 
Figure 152.—The same, disk and tentacles, much enlarged; a, partly contracted; 
6, fully expanded (too many pinne are shown). Drawn by A. H. Verrill. 
and has slightly tapered, long, round terminal branchlets, up to two 
feet (300 to 600™™) or more in length, and 6 to 12™™ in diameter, 
near origin. The calicles are unequal, rather large, up to 1™ in 
diameter, round or ovate, and generally more or less widely open in 
dried specimens, with the borders slightly or not at all raised. 
When entirely expanded, they are large and unusually close together 
