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Royal Society : — 



on the other hand, I fell in with a great many types in which the 

 bones contained no trace of lacunae. And as this fact not only ap- 

 peared to me of interest with regard to the development of the bones 

 of fishes, but also promised to become of great value in systematic 

 zoology, and in the determination of fossil remains, I devoted my 

 whole time to this, question. Now that I have investigated more 

 than 200 species belonging to nearly all tribes of osseous fishes, and 

 mounted about f>00 microscopic preparations of their hard structures, 

 I hope to be able to treat this question more comprehensively than 

 has been possible hitherto, and in such a way as to lead to some 

 general conclusions. 



In giving the results of my observations, I begin with an enumera- 

 tion of the fishes which belong to the one, and those which belong 

 to the other type. 



I. Fishes w7wse bones contain no bone-corpuscles. 



Ol'llo I. ACANTHOPTERI. 



Fam. 1. Percoidei. 

 Perca fluviatilis. 



Apogon Rex mullorum. 

 Pomatomus telescopium. 

 Lucioperca sandra. 



Serranus cabrilla. 

 Anthias buphthalmus. 

 Acerina vulgaris. 

 Centrarchus sparoides. 

 Priacanthus macrophthalmiis. 

 Tlierapon servus. 

 Trachinus vipera. 

 Trachinus draco. 

 Uranoscopus scaber. 

 Pomotis gibbosus. 

 Polynemus paradiseus. 

 Spbyrsena spet. 

 Sphyrama barracuda. 

 Mullus barbatus. 



Fam. 2. Cataphracti. 

 Trigla cuculus. 

 Trigla lyra. 

 Prionotus carolinus. 

 Platycepbalus insidiator. 

 Dactyloptera volitans. 

 Cottus gobio. 

 Aspidophorus europseus. 

 Monocentris japonicus. 

 Gasterosteus trachurus. 



Fam. 3. Sparoidei incl. Mcenides. 

 Sargus annularis. 

 Sargus ovis. 

 Chrysophrys aurata. 

 Pagrus vulgaris. 

 Pagellus ccntrodontus. 



Poops salpa. 



Boops vulgaris. 



Dentex vulgaris. 



Smaris vulgaris. 



Smaris insidiator. 



Gerres Plumieri. 



Fam. 4. Scianoidei. 

 Corvina nigra. 

 Corvina lobata. 

 Micropogon undulatus. 

 Otolitlms regalis. 

 Ha?mulon formosum. 

 Pristipoma stridens. 



Fara. 5. Labyrinthiformes. 



Anabas scandens. 

 Ilelostoma Temminckii. 

 Ophicephalus striatus. 

 Trichopus tricboj)terus. 

 Polyacantbus Hasseltii. 

 Spirobrancbus capensis. 



Fam. 6. Mugiloidei. 



Mugil cepbalus. 

 Mugil, spec. 

 Atherina Humboldtii. 

 Atberina vulgaris. 

 Atherina macrophthabna. 



Fam. 7- Notacanthini. 



Mastacemblus paucalus. 

 Fam. 8. Scomberoidei. 



Scomber scomber. 



Xiphias gladius. 



Tetrapturus belone. 



Naucrates ductor. 



Lampugus pelagicus. 



