14(3 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
lour large ones on the high inner margin and six on the surface a little nearer the inner margin than 
the outer, which is armed with six spines graded in size, the distal one being the largest. 
One specimen of this species was dredged by the Albatross at station 2659, in 509 fathoms. 
Pag'uristes triangulatus A. Milne-Edwards & Bouvier. Plate 4, tig. 9. 
Paguristes triangulatus A. Milne-Edwards & Bouvier, Mem. Mus. Comp. Zool., xiv, No. 3, p. 40, pi. iv, figs. 6-12, 1893. 
The rostrum is slightly elongated, acuminate, the lateral projections are rendered prominent by 
the margin behind the antenna, which retreats in a straight line to the antero-lateral angle. The 
peduncle of the antenna is four-fifths as long as the eye; the peduncles of the antennula are much 
longer. This species can be distinguished from all of the others by the triangular cross section of the 
dactyls of the second pair of ambulatory feet. Color of eye-stalks light rose pink. 
A number of specimens were taken by the Albatross at station 2121, in 31 fathomg, off Trinidad. 
Pag'uristes grayi, new species. Plate 5, figs. 1 and la. 
The outline of the front is closely like that of P. puncticeps; it is, however, well separated from 
that species by the character of the rostrum and also of the eye scales. A comparison of all parts, while 
showing the close relationship, shows a marked difference in detail. The rostrum in two of the three 
specimens is armed with lateral spines and a spine at the tip ; this latter armature is also found on the 
rostrum of puncticeps. The largest specimen is a female; in this case the rostrum has two spines on each 
side; in a smaller specimen, a male, there is but a single spine on each side; the other small specimen 
has a spine at the apex, but none on the side. 
The peduncles of the eyes are elongate but shorter than the front, the scales are rather broad at 
the end, armed with a spine at the outer angle; the inner angle is produced slightly, making a notch 
between it and the spine. The peduncles of the antennae are but little more than one-half the length 
of the eye-stalk; there are three spines on the terminal segment; the spines of the acicle are large. 
The chelipeds are stout with a broad hand, as in puncticeps; the spines are larger and more 
numerous; the horny tips of the spines are much more prominent. The inner surface of the palm is 
much more spiny than in puncticeps-, the spines, as in other places, are large and black-pointed. 
The first pair of ambulatory feet are spinose; the spines have the same characters as those of the 
chelipeds; the crests of the propodus and dactyl are thin and overhanging, forming a deep sulcus on 
the anterior surface; the spines of the posterior pair of legs are very much less in numbers and size. 
San Antonio Bridge, San Juan, Porto Rico. 
This species is named for the collector, Mr. G. M. Gray, of the Marine Biological Laboratory at 
Woods Hole, Mass. 
Genus MUNIDA. 
The following is the key to the section of the genus Munida, of which M. stimpsoni is the type: 
a. Without middle gastric spines stimpsoni 
aa. W ith middle gastric spines. 
6. Supraocular spines shorter than the eyes; not divergent flinti 
bb. Supraocular spines longer than the eyes; divergent. 
c. Posterior margin of the carapace with more than one pair of spines evermanni 
cc. Posterior margin of the carapace with one pair of spines affinis 
Munida evermanni, new r species. Plate 5, fig. 4. 
The rostrum and supraocular spines, as seen from above, are about as long as in affinis, but differ 
in being a little more divergent, not so rough, and the supraoculars are broader. The spines of the 
gastric region are as in affinis, as are also the other spines of the carapace, with the exception of those 
of the posterior border, which is armed until six or eight spines in place of the two common to the 
other three species of the group. The lines of the carapace differ very much from those of the 
other species. They are well separated and ciliated, but the cilia are not numerous enough to obscure 
the carapace; the lines are made prominent by the very large and separated granules. In comparison 
with those of the other species perhaps tubercles would be a more suitable name. The armature of the 
abdomen is about like that of affinis, except that the spines are proportionately larger. The chelipeds 
