148 



pinnk dorsali analique a caudali discrete : latere dextro Jlaves- 

 cente^fuscescente vario ; pinna pectorali dextrd ad apicem macula 

 parva nigrd notatd. 



Tetrodon guttifer. Tetr. oblongus, Icevis ; ventre aculeato- 

 hispido ; pinnis pectoralibus postice subrotundatis ; dorsali ana- 

 lique rotundato-acutis ; caudali lunatd; dentibus superioribus 

 antice parum elevatis : supra olivaceo-brunneus albo guttatus; 

 infra lacteus. 

 D. 11. A. 10. P. 21. 



Carcharias fissidens. CarcJi. dentibus triangularibus, singulis 

 versus angulum oris prqfunde emarginatis, incisurd acutd ; pinnd 

 dorsali 2dd supra analis medium incipiente. 



Figura dentium apud LaCepede, Hist. Nat. des Poiss., torn. i.pl. viii. 



The single notch on each tooth on the side directed towards the 

 angle of the mouth is so deep and acute as to give to the teeth, 

 when viewed from the side, a close resemblance to so many arrow- 

 heads. 



Raia bispecularis. Raia superne aspera, aculeis dorsalibus in 

 unicd serie per caudam excurrente: Jusca, macula pinnce pectora- 

 lis rotunda hyalina nigro-cincta. 



Affinis, ut videtur, Rata Miralete, Risso : differt corpore toto 

 superne aspero, caudaeque aculeis uni-seriatis. Specimen minimum, 

 2-unciale. 



Among the previously described species contained in the collec- 

 tion was a specimen of Scyllium marmoratum , Benn., (Memoirs of 

 Sir T. Stamford Raffles, Appendix) hitherto only known as an in- 

 habitant of the Indian seas. 



