ANNOTATED LIST. 43 
Adambulacral plates numerous, not much wider than long, about 2 to each infero- 
marginal. Armature in 2, or occasionally 3, series; furrow series of 3 (rarely 2 or 4) thick, 
blunt spinelets, each about as long as the plate; subambulacral series usually of 2 spinelets, 
noticeably shorter and stouter than those of the furrow series; these two spinelets may be 
subequal, but usually one is much the larger (generally the aboral one) and sometimes there 
is only one present; the two are usually equidistant from furrow, but they may be set 
quite obliquely. On the outer margin of each adambulacral plate are a few small granules 
and these may be more or less enlarged to form a third series of spinelets; this is conspicu- 
ously so in the paratype, which has this third series of adambulacral spinelets very well 
developed; in the paratype, too, there are often 3 spinelets in the second series; the adam- 
bulacral armature is thus much better developed and spinier in the paratype than it is in 
the holotype. Oral plates small, damaged in the holotype, but in the paratype showing 
about 2 or 3 suboral spines at distal margin of each plate. Color of holotype brown, with 
a slight purple cast; the paratype is quite bleached to a dirty white or pale yellowish. 
Holotype, M. C. Z. No. 747; Hawaiian Islands. 
Paratype, M. C. Z. No. 1796; Gilbert Islands. 
The specimen from the Gilbert Islands was collected by A. Garrett and was received 
from him in 1860. The holotype bears only the label ‘‘Sandwich Islands,”’ but it, too, was 
probably collected by Garrett during the years 1857-59, when he was making special col- 
lections there for the Museum. The specimens have never been identified, but have long 
been catalogued under Fromia. The species is easily distinguished from monilis by the 
development of the actinolateral plates and by the relatively short, non-swollen supero- 
marginals. The combination of long, narrow, flat rays with well-developed actinolateral 
plates and two series of actinal papule is quite distinctive. In form and proportions 
pacifica resembles eusticha, but the entire absence of pedicellariz is a sufficient distinguish- 
ing mark. 
Fromia elegans! sp. noy. 
(Plate 7, Figure 3; Plate 29, Figures 5 and 6). 
R=36-38 mm.; r=8.5 mm. (In life, r was nearly 10 mm.); R=4 r; br=9 mm.; 
R=4 br. Disk flat or moderately elevated; interbrachial arcs broadly curved, so that it 
is hard to determine the width of ray at base; at 6 mm. from center of disk it measures 
10 mm., but at 8 mm., which is practically the disk margin, it is only 9 mm. across; at 10 
it is 8, at 15 it is 7, at 20 it is 6, at 30 it is 4, and at tip it is less than 3. Rays sometimes 
rather flattened with rounded margins but usually well arched, and on distal half nearly 
or quite cylindrical or terete. Abactinal skeleton made up of plates of very diverse size 
and form; most are rather small, flat, and, on the rays at least, wider than long; others 
are conspicuously larger, nearly circular, and, on the rays at least, distinctly convex. These 
larger plates form a series more or less irregular along each side of the ray; 5 primary 
interradial plates on the disk, one of which is the madreporite, are in the same class. These 
larger plates are quite conspicuous on the holotype, but on other specimens they are scarcely 
convex and much less noticeable. Granulation of abactinal surface, including supero- 
marginals, coarse but quite uniform; excepting the smallest, the plates are provided with 
well-defined marginal series of granules, so that each plate stands out sharply defined by 
itself; on an average-sized plate there are 18 to 20 marginal granules and 9 to 12 within 
that series, but on the large plates (one of the primary interradials, for example) there are 
28 to 30 marginal granules and 44 to 46 within; on some of the larger convex plates the 
central granules are a little larger and less close together than elsewhere, and at the center 
of the superomarginals they may be a trifle smaller and more crowded, but these differences 
are trivial; at the tip of the ray, however, the central granules on all the plates are conspicu- 
1 Elegans = charming, in reference to the elegance of form and coloration in life. 
