TABLE OF THE PLATES. XVil 
PISCES. Vol. II. Page 
Plate 38. ter. Fig. 3.—TRAcHINOTUS PAMPANUS, Cuv.* P Ped one (22) 
Pate 38. quar. Fig. 1.—Terraptervs Inpicus, Cuv. . : - 128 
Fig. 2.—Skeleton of the TevRarTERUS BELONE, Ra, . 128 
Plate 39. Fig. 1.—Xtewias Grapivs, Lin. (The Common Sword- Fish) - 127 
Fig. 2.—Same Fish, but of a younger age, 5 : 5 Ge 
Fig. 3.—Terraprurvs BELONE, Raf. 5 : 128 
es Fig. 4.—HisTiopHorvs PULCHELLUS . 5 , . 128 
Plate 39. ter. Fig. 1.—RuyNcuicutTys pELAMIDIS, Cuv.t 4 s od 
Fig. 2.—Nanpus marmoratus, Cuv.t : . . 94 
Fig. 3,—ScomBer coLtas, Gm, (The Mediterranean Mackerel) . 125 
Plate 40. Fig. 1.—Navcrares Inpicus. A new species, which approaches 
closely to the Scomber ductor, Lin, . é + 129 
Fig. 2.—MasracemBetus macutatvs. It is Rhynchobdella maculata 
Reinwardt. i ‘ 5 . 130 
Fig. 3.—SeErio.a Rivouis § 
: : ; é : - 180 
Fig. 4.—Head of the Evacate Artantica; Centronotus spinosus, 
Mitchell : : : A - 129 
Fig. 5.—Head of the RuyNcHOBDELLA ARAL : : < 130 
Fig. 6.—Head of the MasracempeLvs armatus; Macrognathus 
armatus, Lacep. : : ; . 130 
Fig. 7.— Head of the Noracantuus Nasvs, Bl. : > 2130 
Plate 40. bis. Fig. 1—Bovicurus piacantuus, Cuy.|| : ; . 94 
fifth of its Jength, its thickness one-third of its height. Its head one-fourth less 
high than long, is a fifth of the total length. 
* A new species found near Brazils, and other parts of South America. 
+ It is to the researches of M. Dussumier, that we owe the knowledge of this 
singular little fish, which he found in the stomach of a Tropical Bonita in the Indian 
sea. It belongs to the group of Perches with eight rays to the gills and to the ven- 
trals, consequently it is near the Holocentri; but it constitutes a new genus, known 
by a prolongation of the carrina of the craninm in a point which advances beyond 
its mouth, almost the same as in the Lepidoleprus. The preoperculum has a 
projecting spine towards its angle; but the angle of the operculum has only very 
short spines, as in the Myripristis. We as yet only know one single species of this 
genus, which we have named Rhynchichtys pelamidis. 
+ There must be added to the division of; Percoides with a single dorsal and six 
branchial rays, a fish very common in the lakes of Bengal; it is the Coius nandus 
of Buchanan. ‘The description given by this author, however, leaves us too many 
doubts to be able to fix with correctness the place of this species; but M. Dussumier, 
to whom science is so much indebted, has recently brought to Europe a nandus as 
fresh as if it were just out of the water; which enables us to give a detailed and exact 
description of it. This fish we shall now make the type of a genus, to follow imme- 
diately after the Doules, p. 94. It is characterised by a very protractile mouth, 
furnished with fine short soft teeth, like the pile on velvet, in the two jaws, the palate 
and yomer. The preoperculum and interoperculum have their edges finely 
indented. ‘T'he spine of the operculum is so small that it is difficult to perceive it. 
The protractibility of the upper jaw of this fish gives it an appearance quite different 
from the Doules, and makes it more resemble a Mendole with a shortened body. 
This affinity is increased, as the Mendoles, like this fish, have some teeth in the 
palate, but fewer in number, and very few in the vomer. However the Nandus 
cannot be placed in the family of the Menides, on account of the indentations of the 
operculum. We know but one kind of them—the Nandus marmoratus. 
§ A species which approaches closely the Seriola cosmopolitaof Cuvier. It was 
presented to the Cabinet Du Roi by the Duke of Rivoli. 
|| We sought for a long time to know what the jugular fish could be, figured in the 
