1. NOTACANTHUS. 545 



2. Notacanthus bonapartii. 



Misso in Wiegm. Arch. 1840, p. 376. pi. 10 (description and figure in- 

 correct); Filtppie Verany in Memor. Accad. Sc. Torin. Ber. 2. t. xviii. 

 p. 4 (sep. copy). 



D. 9. A. 15 I 120. 



The ventrals are completely united, so as to form but one fiji. 

 Palatine teeth in a double series. Tail tapering. Anal fin black. 

 Mediterranean. 



3. Notacanthus mediterraneus. 



Filippi e Verany in llemoi: Accad. Sc. Torin. ser. 2. t. xviii. p. 1 (sep. 

 copy). 



D. 6 I 1. A. 12 I 132. V. 4/8. 



Scales extremely small. The ventrals are completely united, so as 

 to form but one fin. A small ray in the axil of the last dorsal spine. 

 Palatine teeth in a single series. Uniform silvery. 



Mediterranean. 



4. Notacanthus sexspiuis. 



Richards. Voy. Ereh. S,- Terr. Fishes, p. 54. pi. 32. figs. 4-11. 

 D. 6 I 1. A. 14 I ? P. 13-14. V. 2/7. 



The ventrals are completely united to each other, so as to form 

 but one fin, its base being before the vertical from the first dorsal 

 spine. A small, forked, jointed ray stands in the axil of the last 

 dorsal spine. 



King George's Sound. Australia. 



5. Notacanthus rissoanus. 



Filippi e Verany in Memor. Accad. Sc. Torin. ser. 2. t. xviii. p. 6 (sep. 

 copy). 



Nasal portion produced into a proboscis. Thirty or more spinous 

 finlets on the back. {Fil. Sf Ver.) 

 Mediterranean. 



2n 



