Prof. Kollikcr on the minute Structure of the Bones of Fishes. 71 



Leuciscus rutilus. 

 Leuciscus tincella. 

 Tinea cbrysitis. 

 Barbus vulgaris. 

 Barbua elongatus. 

 Barbus obtusirosti'is. 

 Barbus marginatus. 

 Chondrostonia risella, Ag. 

 Dangila lipocbeila. 

 Labeo niloticus. 

 Catostomus, spec. 



Fam. 3. Characini. 



Citbarinus GeofFroyi. 

 Disticbotlus niloticus. 

 Hydrocyon Forskablii. 

 Alestes dentex. 

 Tetragonopterus mexicanus. 

 Anodus cyprinoides. 

 Leporinus, spec. 

 Pacu tamiurus. 

 Pacu nigricans. 

 Erytbrinus unitaeniatus. 

 Macrodon trahira. 

 Piabuca bimaculata. 

 Gasteropelecus sternicla. 

 Chirodon, Girard, n. spec. 

 Brycon, Mull. Tr., n. spec. 



Fam. 5. Mormyri. 

 Mormyrus bane. 

 Mormyrops anguilloides. 

 Mormyrus longipinnis. 

 Mormyrus oxyrhynchus. 

 Mormyrus cyprinoides. 

 Mormyrus, spec. 



Fam. 8. Salmones. 

 Salmo salar. 

 Salmo trutta. 

 Argentina silur. 



Fam. 11. Clupeini. 

 Clupea bareugus. 

 Alosa vulgaris. 

 Alosa melanura. 

 Coilia Grayi. 

 Engraubs encrasicbolus. 

 Engraulis Brovvnii. 

 Notopterus Pallasii. 

 Macrostoma angustidens,.Risso. 



Meletta thryssa. 

 Elops saurus. 

 Megalops cyprinoides. 

 Cbatoessus cepedianus. 

 Chatoessus punctatus. 

 Gnatbobolus mucronatus. 

 Cbirocentrus dorab. 

 Pristigaster, spec. 

 Lutodeira chanos. 

 Butirinus macrocepbalus. 

 Hyodon claudulus. 

 Heterotis niloticus. 

 Osteoglossum Vandelbi. 

 Osteoglossum foi-mosum. 

 Sudis gigas. 

 Alepocepbalus rostratus. 



Fam. 13. Murcenoidei. 

 Anguilla vulgaris. 

 Conger myrus. 

 Opbisurus serpens. 

 Nettastoma melanura. 

 Sphagebrancbus iinberbis. 



Fam. 14. Gymnotini. 

 Gymnotus electricus. 

 Carapus bracbyurus. 



Subclassis II. Ganoidei. 

 Ordo I. Holostei. 

 Fam. 1. Lepidosteini. 



Lepidosteus platyrbynchus. 

 Fam. 2. Polypterini. 



Polypterus bichn*. 

 Fam. 3. Amiidae. 



Amia calva. 



Ordo II. Chondrostei. 

 Fam. 1. Acipenserini. 

 Acipenser nacarii. 

 Scaphyrbyucbus Rafinesquii. 



Fam. 2. Spatularice. 

 Spatularia fobum. 



Subclassis III. Dipnoi. 

 Fam. 1. Sirenoidei. 

 Lepidosiren annectens. 



From these facts it follows that the osseous fishes, notwithstanding 

 their great number, are separated in a very remarkable way into two 

 groups, as shown in the following enumeration : — 



