48. PEEISTETHUS. 217 



toral appenaages. Teeth none ; lower jaw with barbels. Air- 

 bladder simple. Pyloric appendages in moderate number. 



Mediterranean ; tropical parts of the Atlantic ; East Indian Seas. 



1. Peristethus cataphractum. 



Lyra altera, Rondel, x. c. 10. p. 299 ; Aldrov. ii. c. 7. p. 147 ; Gesner, 



p. 517 bis ; Willughby, p. 283. pi. S. 3 ; Ray, p. 89. 

 Lyra, Salv. f. 192. 

 Coccyx, Bellon. p. 209. 



Trigla, sp. 10, Artedi, Genera, p. 46 ; Gronov. Zoophyl. no. 282. 

 Trigla cataphracta, L. Gm. i. p. 1341 ; Briinn. Pise. Mass. p. 72 ; Bl. 



taf. 349 ; Bl. Schn. p. 16 ; Gronov. Syst. ed. Gray, p. 104 ; Martens, 



Reise nach Vencdig, ii. p. 431. 

 Cataphractus, sp., Klein, Miss. iv. p. 43. no. 4. 

 Duhumel, Peches, sect. v. p. 113. pi. 9. f. 2. 

 Trigla chabrontera, Osbeck, Nov. Act. Nat. Cur. iv. p. 201. 



hamata, Bl. Schti.y. 16. 



Peristedion malarmat, Lacep. iii. p. 369. 



cataphractum, Cuv. df Val. iv. p. 101. pi. 75; Yarrell, Brit. Fishes, 



i. p. 67 ; Kaup, Proc. Zool. Soc. 1859, p. 105. pi. 8. f. 1 ; Risso, Hist. 



Nat. iv. p. 402 ; Cuv. Regne Anim. III. Poise. pL 20. f. 3 (not good) ; 



Guichen. Explor. Alger. Poiss. p. 40. 



chabrontera, Lacep. iii. p. 373 ; Risso, I. c. 



Skeleton of the head : Rosenth. Ichth. Tafeln. pi. 18. f. 4. 



D. 7 1 3^. A. 20-21. L. lat. 30. Caec. pylor. 10. Vert. 10/23. 



Prseorbital processes elongate, their length being 21 in the distance 

 between their extremity and the anterior margin of the orbit. Three 

 small spines on the upper surface of the snout. Each of the bony 

 plates between the base of the ventral fins is -twice as long as broad. 

 The ridge of the angle of the praeoperculum terminates obtusely. 

 Unilbrm red. 



Mediterranean ; British Channel. 



a, h. Adult : stuifed. Mediterranean. 



c. Adult : stufied : not good state. 



d. Adult. Malta. From the Haslar Collection. 



e. f. Fine specimens. Lisbon. Presented by the Eev. E. T. Lowe. 

 g. Adult. From the Haslar Collection. 



h. Adult. From the Haslar Collection 



i. Adult. From the Haslar Collection. 



Jc. Adult : skeleton. 



I. Adult : not good state. Old Collection. 



m. Adult : bad state. Purchased of M. Parzudaki. 



n. Caeca pylorica of specimen h. 



2. Peristethus brevirostre. 



D. 7 I 17. A. 19. L. lat. 28. 

 The length of the praeorbital processes is 2| to three times in the 

 distance between their extremities and the anterior margin of the 

 orbit. A single pair of spines on the upper surface of the snout. 



