70 
ICHTHYOLOGICAL FAUNA OF CELEBES 
already known, but also in discovering entirely unknown 
ones. This would appear to a certain degree from the com¬ 
parative richness of the collection by Mr Zollinger, of which 
nearly half of the number of species are new in Ichthyology. 
A few words only regarding the new genera formed by me ; 
I have named them Dipterygonotus, Apogonoides, Ambly- 
gaster and Pogonognathus. 
The two former belong to the family of the Sparoidei of S. 
Muller (Sparoidei & Maendoles. Cuv. Val.) 
The Dipterygonotus is distinguished by his *nout prolong¬ 
ed into a horizontal tube, by two diverging fins without scales, 
toothless gill covers, a small flat thorn at the operculum, 
scaled joles and absence of jaw bone—and erect teeth. 
Apogonoides thus named by me from its resemblance in 
habitus to divers sorts of Apogon, has likewise two diverging 
dorsal fins and toothless gill covers, but no thorn at the oper¬ 
culum, the snout but little prolonged, small bristly jaw teeth 
and no erect and canine teeth. 
The 3rd of the genera formed by me belongs to the Clu- 
peoidei, and has a great affinity to the genus Clupea, from 
which it is chiefly distinguished by a flat round smooth belly, 
a character which I tried to express by the word Amblygaster. 
Amblygaster has a long compressed body, a round unspiked 
belly, 5 rayed gills, the eyes partly closed by a membrane, a 
naked head, no teeth. 
With regard to the novelty of the genus belonging to the 
Balistini, called Pogonognathus, I am not quite certain. 
Remote from every centre of science, confined altogether to 
my own library and notin possession of some Ichtyographic 
works, I cannot positively decide, whether the Aluteres cryp- 
tacautus Cuv. (Renard II part p. 1. 2 f. 284) or the Anacan- 
thus barbatus. Gray, illustrated in the Ind. Zool. Vol. I Jab. 
84 f. 2, be identical or related to my Pogonognathus bar¬ 
batus. The Aluthera barbate, mentioned by S. Muller in 
his abovementioned treatise, is there only enumerated without 
being described, so that I am likewise uncertain with regard 
to that species, whether it is the same with that discovered by 
me. I am inclined however to identify both of them, since 
they were found at the same spot, and I know of no species 
of Aleuteres, with one or more cirri in the under jaw. It 
must be reserved to zoologists, who can command a greater 
share of literary aid than I on this unscientific spot of the earth, 
to remove the uncertainty on the point. Pogonognathus 
is nearly related to Aleuteres, but is distinguished from the 
latter by a large membranous cirrus on the chap, and a single 
dcrsal fin formed merely by a bony fibre. The character- 
