FEY. 
291 
Jack. This last term is probably a corruption of 
cavalho, and may find an analogy in our Horse 
Mackarel,” an epithet by which a British species of 
the same genus is familiarly distinguished. 
Some very little fishes are common in the same 
situations as those above described, which go by the 
name of Fry, but consisting of two species, so much 
alike, on a cursory examination, as to be readily con- 
founded. They are all of about the same size, two 
inches and three-fourths in length, of a greyish, pel- 
lucid appearance, with the cheeks and gill-covers, and 
a broad band running down each side, silvery. Some, 
which have the mouth and gilFopening enormously 
wide, are a small kind of Anchovy {Engraulis Brownii). 
The others belong to another genus, and constitute, 
I believe, a new species of Clupea, remarkable for 
the great length of the head in proportion to the 
body.* It is a curious circumstance that fishes of 
different genera should associate together in shoals ; is 
it on account of their close resemblance in form, size, 
general appearance, and colour ? 
* The Silver-banded Herring. Clupea lamprotasnia, mihi. (Aapwphs, 
resplendent, Taivia, a ribbon or band.) Head one-fourth of total 
length, and nearly twice the vertical diameter of the body ; back 
nearly straight : belly very slightly arched : body but slightly com- 
pressed : belly not serrated. Fin-rays, D. 13; A. 13; C. 24; 
P. 13 ; V. 8. Length two inches and three fourths. Irides silvery. 
Body pellucid, greyish ; a broad band of rich silver runs along each 
side from the operculum to the base of caudal : cheeks and gill covers 
silvery: fins grey, transparent. (Plate I. fig. 2.) 
I find teeth certainly on the intermaxillaries, and, I think, in a band 
on the vomer ; hence I consider it a Clupea, as restricted by Cuv. and 
Val. ; but from the minuteness of the specimens it is difficult to 
ascertain this point with accuracy. 
o 2 
