182 



November 13, 1832. 



Lieutenant-Colonel Sykes in the Chair. 



A numerous collection of Fishes was exhibited which had been 

 formed in Ceylon by Dr. Sibbald, Corr. Memb. Z.S., and had been 

 presented by him to the Society. It included upwards of seventy 

 species, among which were types of various genera not previously 

 contained in the Society's Museum. They were severally brought 

 under the notice of the Committee by Mr. Bennett, who dwelt par- 

 ticularly on those which he regarded as new to science. They are as 

 follow : 



Diacope spilura. Diac. vittis rufis latis parallelis utrinque 



quinque, quarum secundd tertidque oculum attingentibus, quartd 



axillam, quintd commissuram oris ; labio inferiore aurantiaco ; 



jS maculd magnd nigrd ante basin pinnae caudalis ; pinna dorsalis 



parte spinosd superne inferneque anguste nigrescenti marginatd. 



D. \\. A. 4. 



Diac. octolineatce , &c. affinis. Differt a speciebus adhuc cognitis 

 numero radiorum et pictura. Dens angularis antice utrinque in max- 

 illa superiore maximus ; inter hos duo majores ; in maxilla inferiore 

 dentes duo laterales utrinque majores. 



Diagramma Sibbaldi. Diag . albescens, fasciis tribus longitudina- 

 libus, (quarum medid latd postice ramosd perpinnam caudalem me- 

 diam excurrente, superiore latissimd basin pinna dorsalis includente 

 antice posticeque interruptd, inferiore mediocri simplice,) naso, 

 maculd suborbitali, fronte, maculd ante basin pinna pectoralis, 

 pinnd pectorali prater margincm superiorem, plagd triangulari ad 

 basin pinna analis, aliisque duabus submarginalibus pinna caudalis, 

 castaneo-nigris ; infrd et ad apicem pinna analis jlavus. 



D.-hl-A.-g-. 



ChjEtodon xanthocephalus. Chat, suborbicularis : pinnis rotun- 

 datis : pallide brunnescens ; fascid oculari haud ultra oculum ex- 

 tensd ; lineis transversis quinque vel sex subfractis parilm satura- 

 tioribus ; capite (prater opercula strigamque argent earn infra- 

 ocularem,) guld, pectore, pinnis ventralibus, linedque post-opercu- 

 lari per basin pinna pectoralis ductd, flavis ; pinnarum dorsalis 

 analisque parte molli externe nigrescente flavo fimbriatd, basin ver- 

 sus flavescente lined sanguined interne cinctd; caudd pinndque 

 caudali superne inferneque flavis , hdc quadratd hyalind brunneo ad 

 radios lineatd. 



DI 4 A » 



Striga prima a radio spinoso quarto pinnae dorsalis pone axillam 

 decurrit; hanc sequuntur strigae tres quatuorve ventrem lantum ver- 

 sus ibique indistinct* j secunda a basi .radii spinosi sexti j tertia oc- 



