ANOMURAN COLLECTIONS MADE IN PORTO RICO. 
13 C J 
The Hippidse of the West Indian region, represented by the genera Hippa and Emerita, are easily 
distinguished by the very long antennae and the hemispherical cross section of the body of Emer'ua in 
contrast with the short antennae and much less convex body of Hippa. The Hippidx have nonchelate 
anterior legs; the outline of the carapace is ovate, fitting them for rapid movements in the loose sand 
along the surf-beaten shores. The young are often in great numbers in more sheltered places. Old 
and young ai'e a favorite food for fish. 
Mayaguez, San Juan. A specimen from Mayaguez is about 25 mm. long, 12 mm. wide. 
Genus ALBUNEA. 
Albunea gibbesii Stimpson. 
Albunca symnista Gibbes, Proc. Amer. Assoc., m, p. 187, 1850. 
Albunea gibbesii Stimpson, Ann. Lye. Nat. Hist. N. Y., vn, p. 78, pi. i, tig. 0, Mar., 1859. Miers, Jour. Linn. Soc. Lond, xiv,p. 329. 
The front behind the eyes is deeply sinuate. There is a spine on the median line. The margin 
between the eyes and an ten me is armed with about nine sharp spines. The eye-stalks are lamellate, 
elongated, triangular, with very small cornea at the apex of the angle. The flagelke of the antennuke 
are multiarticulate and more than twice as long as the carapace. The carapace is subquadrate, little 
convex on the median line and very convex from side to side. The sides are nearly straight, tapering 
a little behind. The first three pairs of ambulatory feet have falcate dactyls. The terminal segment 
in the male is elongated; in the female rounded. 
The Albuneas have long antennules and subchelate anterior feet. The carapace is straight on 
the median line and convex transversely. The anterior outline is truncate. 
The species are found from the shore line to the moderate depths. Specimens were dredged at 
station 6053, San Juan Harbor, in 4 to 7J fathoms. 
Albunea oxyophthalma Miers. 
. I Ibwiea oxyophthalma Miers, Jour. Linn. Soc. Lond. , xiv, p. 329, pi. v, figs. 14 and 15, 1879. 
This species is distinguished from the preceding by the slightly more elongated eve-stalks and 
by the 11 or 12 spines on each side of the anterior margin. Length about 30 mm. 
West Indian region. 
Genus CENOBITA, 
Cenobita diogenes (Latreille). 
Pagurus diogenes Latreille, Ency., pi. 284, figs. 2 and 3. (From Catesby. ) 
Cenobita diogenes H. M. Edwards, Hist. Nat. des Crust., ii, p. 240, pi. ir, figs. 11-14, 1837. 
This genus, as pointed out by H. M. Edwards, is intermediate between the noted cocoa-nut crab 
of the Pacific Islands and the Paguridcc. The West Indian species of the genus O. diogenes lives pref- 
erably in the heavy shells of Livona pica Gmelin, which it drags even up the hills; for this hermit lives 
on land much of the year, going back to water, some of the islanders say, to get new shells. In reality 
they visit the water in the breeding season. While P. diogenes climbs the hills, I have more frequently 
met with it in low marshy but shady places. It can readily be distinguished from any other hermit 
of the region by its earth-roaming habits, its large left cheliped of bluish purple, by its very stout 
ambulatory legs, its compressed eye-stalk, and by the propodus of the left third foot, which is very 
deep or compressed. 
Boqueron Bay, Ensenada Honda (Culebra), Caballo Blanco Reef, Ponce. 
Genus PAGURUS. 
Pagurus marshi, new species. 
The projections of the front are pointed; the median or rostral point is in advance of the lateral 
points. Of the four divisions of the frontal line caused by the points, the two middle ones are trans- 
verse, forming a shallow sinus behind each eye. The two between the lateral points and the side of 
the carapace would, if prolonged, meet the median line a little beyond the eye scales. A large space 
in the middle of the anterior part of the carapace is smooth; near the sides the surface is rough. 
The eye-stalks are as long as the entire front and are strongly bent inward from the base to the 
middle, outward from the middle to the cornea; the scales are broad and rapidly acuminate. The 
