116 
BULLETIN' OF THE UNITED STATES FISH COMMISSION. 
Hippolysmata intermedia Kingsley. 
Hippolysmata intermedia Kingsley, Proc. Ac. Nat. Sci. Phila., xxx, 1878, 90, (2); Bull. Essex. Inst., xiv, 128, pi. i, f. 4 1882. 
Carapace carinated for its anterior two-thirds. Crest horizontal, armed with six teeth, two or 
three on carapace, the remainder on rostrum; posterior dorsal tooth at middle of carapace. Rostrum 
sharp-pointed, with two inferior teeth and reaching end of penult segment of antennular peduncle. 
A strong antennal and a small pterygostomian spine. Antennulae with stout flagellum longer than 
carapace, fringed with long hair, and bearing the outer slender flagellum at twentieth segment in large 
specimens. Antennal scale longer and more slender than in H. moorei. Peduncle just reaching penult 
segment of antennular peduncle; flagellum 1.5 times length of body. Outer maxillipeds exceeding 
antennal scale by half the length of terminal joint. Carpus and propodus of first pair of feet subequal; 
palm narrower than in II. moorei; fingers one-third the length of palm. Second pair of feet more slender 
than in II. moorei; carpus with about thirty articles. Telson similar to that of II. moorei. 
Dimensions of female with eggs: Length, 20.5 mm. ; length of carapace and rostrum, 8 mm. ; length 
of rostrum, 3 mm. 
Porto Rico: Mayaguez Harbor; off Vieques, 12$ fathoms, station 6095; Ensenada Honda, Culebra. 
No Name Key, Fla., banks, low tide (H. Hemphill, coll.) ; Key West (H. Hemphill, coll.); Tortugas 
(Kingsley); St. Thomas (Nobili); Pirn Bay, Fayal, Azores (Lewis Dexter, coll.). 
Genus THOR Kingsley. 
Thor Kingsley, Proe. Acad. Nat. Sci. Phila., xxx, 1878, 94 (6). 
Carapace with antennal spine; rostrum short, toothed above; antennulae biflagellate, outer branch 
very stout. Mandibles without palpi, bifurcate, apical process narrow; proximal process stout with 
one acute and one obtuse tooth and a pubescence of minute curved hooks. External maxillipeds 
pediform, exopoclite present. Feet of first pair short, stout- of second elongate, slender; carpus five- 
annulate. Telson elongate, triangular. 
Thor floridanus Kingsley. 
Thor Jtoridanus Kingsley, Proc. Acad. Nat. Sci. Phila,, xxx, 1878, 95 (7); Proc. Acad. Nat. Sci. Phila., xxxi, 1879, 421, pi. 
XIV, f. 6, 1880. 
Carapace with a small antennal spine. Rostrum shorter than eyes, four to five toothed above, 
the first tooth over orbits, the distal tooth so near the end as to make it appear bifid; unarmed below. 
Antennulae with basal joint large, basal spine long, acute, reaching half the length of third joint; 
second and third joints very short, the second with a slender, acute spine on outside, the third with 
a thin, flat, blunt projection on upper side; inner flagellum slender, Slightly longer than peduncle; 
outer about as long as peduncle, stout, ciliated on apex and inner margin. Antennae with a spine on 
basal joint; antennal scale reaching as far or nearly as far as outer branch of antennular flagellum, its 
inner margin slightly concave; flagellum three-fourths as long as body. External maxillipeds slender, 
reaching tip of antennal scale, penult joint the shortest, antepenult three and last joint four times as 
long as penult, the last joint terminating with slender spines. First pair of feet with meral and carpal 
joints subequal, the latter with minute spinules on inner margin; hands subcylindrical, the dactyli 
occupying two-fifths their length. Meral joint of second pair of feet as long as first three carpal joints; 
first carpal joint the longest, second joint next in size, fifth next; third and fourth subequal, together 
equal to first. Hand as long as fourth and fifth articulations of carpus, the fingers being two-fifths of its 
length. Dactyli and propodi of remaining feet spinulose beneath. Telson with apex truncate, spined. 
Length of adult female, 10.5 mm.; length of carapace, 3.2 mm. 
Porto Rico: Mayaguez on coral reef; Puerto Real; Playa de Ponce Reef; off St. Thomas, 20 to 23 
fathoms, station 6079; Ensenada Honda, Culebra. 
Key West (type locality); Harbor Key and Sarasota Bay, Fla. (Kingsley). 
Specimens in National Museum from Anclote Sponge Station, Tarpon Springs, Fla. (Evermann); 
Punta Rassa, .1 fathom (H. Hemphill); Marco, 1 to 3 fathoms, among sponges (LI. Hemphill); No 
Name Key, among algae, low tide (H. Hemphill); Key West ( Albatross ), among algae below low tide 
(H. Hemphill) ; Key West Harbor (E. Palmer) ; Dry Tortugas (E. Palmer), Gulf of Mexico, 25 fathoms, 
station 2370 (Albatross); off Cape Catoche, Yucatan, 24 fathoms, station 2365 ( Albatross ); St. Thomas 
(Albatross). 
