392 Intelligence and Miscellaneous Articles. 



and toes, 34- : the ear, nearly concealed by the bristly covering, is 

 1^ long, and 1 inch broad. 



Mr. Boyle states that this animal " is called by some the Ground- 

 Pig, by others, the Ground- Rat. It feeds upon ground nuts, Cassada, 

 and other roots. On the passage homewards it ate polaloes, and was 

 becoming very docile." 



It is very probably the "wild Rat, bigger than a Cat" mentioned 

 by Bosman. 



A small collection of Fishes, formed during the voyage of H. M. S. 

 Chanticleer, and presented to the Society by the Lords Commission- 

 ers of the Admiralty, together with numerous other Zoological spe- 

 cimens obtained during the same voyage, was laid upon the table. 

 It contained among others a young individual of the Scyllium cirra- 

 tum, in the state in which it is described by Schneider as the Squalus 

 vunclatus : a specimen of the Blennius pilicornis, Cuv., described ori- 

 ginally by Marcgrave, and remarkable for the long acicular tooth at 

 the back of the lower jaw on each side, a peculiarity which may here- 

 after cause it to be regarded as the type of a distinct genus : a spe- 

 cimen of the Antennarius scaber, Chironectes scaber, Cuv., also de- 

 scribed by Marcgrave : and two species which appeared to be new to 

 science, and which were thus characterized by Mr. Bennett : 



Chrojfis T.^inia. Chrom. brunneo-nigrescens : pinyiis nigrescentibus; 

 caudali subrotundatd nigra fasciatim puncfaiissimd: macula ro. 

 tundu infraoculari, altera ad basin pinnce caudalis superne, tce- 

 nidque ab oculo per medium latus ad pinnam caudalem ductd, 

 nigris. 



D. -H-. A.^. P. 13. C. 16. 



Hab. apud Trinidad. 



Affinis Clirom. punctata, Cuv., (Labrus punctatus, L.). DifFert a 

 figura Blochiana taenia laterali, pinnisque baud lineatis: differt etiam 

 numero radiorum pinnarum. 



MoNACANTHUs SKTiFER. Mon. cuudd liispidu : cirris brevibus mul- 

 tijidis raris conspersus : pinnce dorsalis radio 2do longissimo : 

 pallide brunneus, lateribus niediis nigro undulatim longitudinaliter 

 lineatis : pinna caudalis rotundatcB fascid angusld suhmedid. 



D. 1,28. A.2'J. C. 12. P. 12. 



A description, by the Rev. Robert Holdsworth, of a fish taken in the 

 seine, at Start Bay, on the south coast of Devon, in August 182.5, 

 was read. Mr. Holdsworth regards the fish in question as the t/m- 

 brina, Scicena Aquila, Cuv. ; with which species, occasionally taken in 

 the English Channel, his description agrees. 



L. Intelligence and Miscella?ieous Afticles. 



ON THE ATOMIC WEIGHT OF BARYTES. BY DR. THOMSON. 

 " T HAD from a set of experiments in which dry chloride of barium 



A was decomposed by sulphate of potash, inferred that the atomic 

 weight of barytes was 9"7.0. The conclusion was founded upon this 

 experiment: 13*25 grains of chloride of barium were mixed with 



1 1 grain.s 



