Oyi new Freshwater Fishes from China and Japan. 1-49 



GaraJitiana-Wke forms with indistinct peripheral break of 

 ribs ; no definite break bordered by knobs as in Garantiana. 

 Some species from the ne'or/ensjs-beds of Oborne, Dorset, 

 answer to this description. 



The new species enumerated as belonj^ino; to these genera 

 have not yet been described by Dr. Mascke, but they are 

 promised in an important forthcoming work. Those who 

 know how the present paucity of names for these fossils 

 liampers geological and biological work will earnestly desire 

 that its publication be not delayed. 



Besides these genera, tiiat of Cadoniites, Munier-Chalmas, 

 type Am. deslongchampsi, d'Orb., would certainly be added 

 under Mascke's family Stephanoceratidse. To this genus 

 belongs A. daubenyi, Gemmellaro, a very rare species for 

 Britain, which has been found in the truellit-heds of Burton 

 Bmdstock, Dorset ; and there are other species not yet 

 named. 



It will be seen that Mascke arranges "-Stephanoceras and 

 allies," from the Coronatenschichten only, into 21 genera, of 

 which 11 are new, and that he mentions 292 species, of which 

 253 are new — that is to say, that in a part only of what was 

 a few years ago grudgingly regarded as one genus with some 

 dozen species, he proposes to have 3 families, 21 genera, and 

 some 300 species. Put in another way, it is, perhaps, more 

 striking — the ''good old species" ^^A. humphriesianus^^ is 

 to be divided into 71 species, distributed among 4 genera, in 

 2 families. 



These results are quite in accordance with the expectations 

 of those who have studied the Inferior Oolite, and know by 

 experience its remarkably prolific Ammonite fauna ; but they 

 will doubtless surprise those who have thought that the 

 Inferior Oolite had been given too many species already, and 

 that the best way to veil the fact of its Ammonite fecundity 

 was to cause the discontinuance of the work on it. However, 

 wiiat is not to be accomplished in one country is evidently to 

 be undertaken with vigour in another. 



XXIV. — Descriptions of new Freshwater Fishes from China 

 and Japan. i5y C. TatE KeGAN, M.A. 



Oymnostomus formosanus. 



Depth of body 3^ to 4 in the length, length of head 4 to 4i. 

 Snout shorter than postorbital part of head. Dian\otcr <ji 



