508 — Storer’s Synopsis of the Fishes of North America. 
1. Zygena malleus, Vat. 
Body cylindrical, elongated. Head one third as long as broad. Grayish brown above, 
whitish beneath. Second dorsal arises slightly in front of the anal fin. Branchial openings 
all before the base of the pectorals. 
D. (?). P.(?). V-(@). A-(@). C.(?). Length, 2 to 12 feet. 
Massachusetts, Storer. New York, Mircuimt, Dexay. Caribbean Sea, Bancrorr. 
‘*From Nantucket to Brazil,”? Dexay. 
Squalus zygena, Lin., Syst. Nat., 1. p. 399. 
G 3 Hammer-headed Shark, Suaw’s Gen. Zodl., v. p. 354, pl. 154. 
at fe 3 Ks Mirerytt, Trans. Lit. and Phil. Soc. of N. ¥., 1. p. 482. 
Zygena malleus, Hammer-head, Var., Mémoires du Muséum d’Hist. Nat., 1x. p. 422, pl. 11, fig. 1. 
A “5 & Jenyns’s Brit. Vert., p. 507, sp, 196. 
Gs WN uh YarreEwu’s Brit. Fishes (2d edit.), 1m. p. 504, fig. 
rt § aS Storer, Supplement to Report, Bost. Journ. Nat. Hist., rv. p. 185. 
Sf M2 MG Dexay’s Report, p. 362, pl. 62, fig. 204. 
GENUS IX. SQUATINA, Dumenrit. 
Body very much depressed ; head flat, rounded anteriorly ; both eyes on 
the upper surface ; temporal orifices large, behind the eyes ; mouth at the end 
of the snout ; pectoral fins large, attached anteriorly to the head, the posterior 
edge free ; two dorsal fins, both behind the ventrals ; no anal fin. 
1. Squatina Dumerili, Lesvevr. 
Head bordered on each side by a white membrane ; head and fins a bluish ash-gray, with 
reddish tints upon the head and margin of the fins ; abdomen, throat, and pectoral and anal 
fins, marked by large red spots ; nostrils with a broad, ciliated skin on each side, as in the 
Barbel. Teeth lanceolate, rather gibbous in front; there are six or seven distinct rows, hav- 
ing each five teeth. 
D.(@). P.@). V.@). C.@). Length, 3 to 4 feet. 
Dekay supposes Lesueur’s specinen was from Florida, and thinks it is found on the coast 
of New York. 
Squatina Dumeril, Lesvevur, Journ. Acad. Nat. Sc., 1. p. 225, pl. 10. 
Squatina Dumerili, American Angel-fish, Dexay’s Report, p. 363, pl. 62, fig. 203. 
GENUS X. PRISTIS, Latrnam. 
They unite to the elongated form of the Squali, in general, a body flat in 
front, and gills pierced beneath, as in the rays. But their proper character 
consists in a very long, depressed muzzle, in the form of the blade of a sword ; 
armed on each side with strong osseous spines, pointed and trenchant, and 
