169 



producta ; pinnarum dorsalis 2dce analisque antice magis elevala- 

 rum fimbria, caudalisque mar ginis fascia lunata, nigrescentibus. 

 D. 1?, 29. A. 26. P. 13. 

 Praecedenti valde affinis j sed pictura alia, pinnae antic& minus 

 elevatae, numerusque radiorum paullo major. 



Balistes mitis. Bal. late ovalis; pinnd caudali rotundatd, extre- 

 mitatibus paullum productis ; seriebus septem vel octo aculeorum 

 caudalium minimorum: pallide brunneus, pallidiori varius. 

 D. 3, 30. A. 28. P. 15. C. 12. 

 Mr. Bennett availed himself of the opportunity to remark that the 

 Serranus, characterized by him from this collection on the 23rd of 

 August, as the Serr. Telfairii (p. J 27), had been described about the 

 same time by MM. Cuvier and Valenciennes under the name of Serr. 

 argyro-grammicus. He also stated, that those eminent zoologists 

 having used as the designation of a distinct genus of Scombrida from 

 that to which he had applied it (p. 146), the classical name Apolectus, 

 he proposed, with the view of preventing confusion, to apply to the 

 group indicated by him the name of Apodontis. 



Mr. Bennett subsequently observed, that the Birds described by 

 him (p. 13), had during the summer completed the change of their 

 plumage, and had thereby assumed the full adult characters of the 

 Angola Vulture of Pennant, Vultur Angolensis, Gmel. The Poly- 

 borus? hypoleucus sinks therefore into a synonym, and the description 

 of it is that of the Angola Vulture in its change from immature to 

 adult plumage. 



Mr. Owen read the following additional Notes on the anatomy of 

 Crocodilus acutus, Cuv., taken at the dissection of the female of that 

 species, which lately died at the Society's Gardens. 



" The same subdivision of the serous membranes, as was noticed 

 in the dissection of the male (p. 139), was again observed j and in 

 addition to those cavities previously described, another distinct one 

 was found between the back part of the liver and oesophagus. 



"The interior of the stomach did not present the distinct patches 

 observable in the previous dissection (and still obvious in the prepa- 

 ration), which must therefore be considered as an accidental variety : 

 but the lining membrane was a smooth uniform villous surface, stained 

 of a yellow colour, and highly vascular, as is proved by injection of 

 size and vermilion. 



" The small intestines presented a dilatation immediately beyond 

 the folds of the duodenum ,• which is most probably a normal structure, 

 and not depending on the accumulation ofjlatus, as was supposed in 

 the dissection of the male. 



" The spleen was in the same relative situation, and exhibited the 

 same loose mode of connection, but the process of peritoneum was 

 somewhat broader. On holding it up to the light an equally satis- 

 factory view of its contents was obtained ; and I am therefore inclined 

 to consider it an experiment unf, crueis on the negative side of the 

 question regarding the duct of the spleen. 



