FAMILY ECHENEID — ECHENEIS. 309 
I insert this species as I find it in Mitchill’s account of the Fishes of New-York. It varies 
somewhat from the description of the E. naucrates, but Iam inclined to believe that the 
number of transverse plates is (although restricted within certain limits) not constant in num- 
ber in the same species. It certainly is not in the following. 
The E. naucrates has been observed on the banks of Newfoundland. 
THE COMMON REMORA. 
ECHENEIS REMORA, 
Echeneis remora. Linnevs. Scuaprr, Beobachtungen u. s. w. Vol. 8, p. 145. 
Echeneis remora, Small Oceanic Sucker. Muircut.1, Transact. Lit. and Phil. Soc. Vol. 1, p. 378, 
Characteristics. Dusky brown ; lighter beneath. Adhesive disk with seventeen or eighteen 
transverse bars. ‘Tail concave. Length 12 - 18 inches. 
Description. Form as in the preceding. Length of the head about one-fifth of the total 
length. Head flattened above, with a disk extending from near the tip of the upper jaw to 
the ends of the pectorals, and equal to one-third of the total length. Seventeen to eighteen 
pairs of bony lamin, the edges of which are furnished with rows of minute tooth-like pro- 
jections. Mouth wide ; lower jaw longest ; a single band of small incurved teeth in the upper 
jaw, also on the vomer and tongue. Branchial aperture large. Dorsal and anal opposite and 
coéqual. Pectoral small and rounded. Ventrals narrow, and with a membrane attaching 
them to the body. Caudal fin crescent-shaped. 
Color. Dusky brown above ; the under part of the body lighter. The fins darker than the 
rest of the body. 
Length, 12°0 - 18°0. 
Hinirays; Ds 21 eR oor Vig SAR O(a Gt 0: 
The indications given by Dr. Mitchill are sufficiently explicit to lead me to arrange this 
species among those fishes, which, occasionally at least, visit our shores. Scheepff saw both 
this and the preceding species taken from the bottoms of vessels in the harbor of New-York. 
(EXTRA-LIMITAL.) 
E. 14. laminatus. (Srorer, |. c. p. 155.) Reddish brown. Adhesive disk with fourteen serrated 
bars. Length five and a half inches. Coast of Massachusetts. An juv. 2 
