THE BRAOHYURA AND MACRURA OF PORTO RIOO. 
115 
Boqueron, Porto Rico, 1 specimen. 
Port Macon and Beaufort, N. 0. (Kingsley); Charlotte Harbor, Fla. (Kingsley). Specimens are 
in the National Museum from Cedar Keys, Fla. (Lieut. ,T. F. Moser, U. S. N., U. S. Coast Survey 
steamer Bache, coll.); off St. Martins Reef, 17 feet (Moser, coll.); Anclote Sponge Station, Tarpon 
Springs (B. W. Evermann, coll.); Charlotte Harbor (W. H. Dali, coll.); Big Gasparilla (Grampus); 
Punta Rassa, 1 fathom (H. Hemphill, coll.); Marco (Grampus), 1 to 3 fathoms (H. Hemphill, coll.); 
Key West, surface with electric light (Albatross); Cape Florida (U. S. Fish Commission); Shamrock 
Point, Corpus Christi, Tex. (B. W. Evermann, coll.); Andros Bank, Bahamas (F. Stearns, coll.); 
Jamaica, Cozumel (in seine), Old Providence and St. Thomas (Albatross). 
Genus HIPPOLYSMATA Stimpson. 
Hippolysmata Stimpson, Proc. Acad. Nat. Sci. Phila., xn, 26 (95), 1860. 
Carapace provided with a rostrum of moderate length, vertically dilated and dentate. Anten- 
nulae furnished with two long flagella. Mandibles strongly incurved, not divided into two parts nor 
palpigerous. External maxillipeds elongate, provided with an exognath and flagellum; last article 
slender. First to fourth feet provided with epipods. First pair of feet small, thick, hand oblong, 
second pair filiform, carpus multiarticulate. Abdomen dorsally smooth. 
Key to the Porto Rican species of the genus Hippolysmata. 
A. One median spine on carapace posterior to rostrum and anterior to middle moorei 
A'. Two or three median spines on carapace posterior to rostrum, the hinder of these spines at middle of carapace. 
intermedia 
Hippolysmata moorei, sp. now 
Carapace dorsally carinated in anterior half, a spine at anterior fourth. Rostrum reaching Ihe 
middle of second antennular segment, bent down toward extremity, armed above with three or four 
teeth, and below with two smaller teeth near extremity. Anterior margin with a strong antennal 
spine. Eyes very short and stout, the axial diameter not exceeding transverse. Cornea black in 
alcohol. Antennulfe stout; peduncle 
short; last two segments broader than 
long; a very slender inner flagellum as 
long as body, and a stout outer flagel- 
lum about two-thirds the length of the 
carapace and bearing on its outer margin 
at about the tenth segment (in large 
specimens) a long slender flagellum 
similar to innermost one. Antennal 
scale broad, tapering, truncate, with a 
very small antero-lateral spine. Pe- 
duncle reaching to about the middle 
of penultimate segment of antennular 
peduncle; flagellum slender, as long as 
body. Outer maxillipeds reaching end 
of antennal scale. First pair of feet with 
carpus and palm subequal in length; 
fingers half as long as palm. Carpus of 
second pair about seventeen-articulate; 
distal segment about as long as palm; fingers shorter. Telson narrow, blunt-pointed, armed with 
two pairs of slender spines forming a square near middle, and two spines at extremity. Caudal 
laminae exceeding telson, inner lamina narrower than outer. 
Dimensions of female: Length, 20.3 mm.; length of carapace and rostrum, 7.5 mm.; length of 
rostrum, 2.4 mm. 
Type locality, Playa de Ponce, 14 specimens (Cat. No. 23787). 
The short antennular peduncles and antennal scale easily distinguish this species from all others. 
Named for Dr. H. F. Moore, naturalist of the Albatross , who accompanied the Fish Hawk on its 
cruise to Porto Rico. 
(6) Rostrum, side view, x 10.66. 
