204 Mr. C. T. Regan on the 



Strojnateus microch/.rus. 



Seserinus inicrochirus, Cuv. & Val. ix. p. 416 (1833). 



Stromateus microchirus, Bonap. Faun. Ital., Pesc, with plate (1834). 



Depth of body twice in total length, length of head 4 times. 

 Snout longer than the eye, the diameter of which is 5^ times 

 in tlie length of head, interorbital width 21 times. Maxillary 

 not extending to below the eye. D. 45-50, the rays in- 

 creasing in length to the thirteenth, which is | the length of 

 head, thence decreasing to the last. A. 35-37. Pectorals | 

 the length of head. Caudal forked, the lobes as long as the 

 head. Gill-rakers about \ as long as the eye, 11 or 12 on 

 the lower part of the anterior arch. Grey, fins darker ; eight 

 or nine blackish vertical bands on the sides. 



Total length 125 millim. 



Mediterranean, S. Africa. 



Stromateus maculatus. 



Stromateus maculatus, Cuv. & Val. ix. p. 399 (1833). 



Depth of body 2\ times in total length, length of head 4^ 

 times. Snout longer than the eye, the diameter of which is 

 5 times in the length of head, interorbital width 3 times. 

 Maxillary not extending to below the eye. D. VII 40-43, 

 the rays increasing in length to the tenth soft ray, which is 

 half the length of head. A. Ill 38. Pectorals longer than 

 the head. Caudal lobes as long as the head. Gill-rakers less 

 than \ the eye-diameter, 12 on the lower part of the anterior 

 arch. Blue above, silvery below ; numerous round dark 

 spots on the upper half of the body. 



Total length 200 millim. 



Pacific coast of S. America. 



Pepkilus. 



Ehomhus, Lacep. ii. p. 321 (1800) ; Cuv. & Val. ix. p. 401 (1833). 

 I'eprilus, Cuv. Reg. An. ii. p. 213 (1829). 



This genus differs from Stromateus in that the pelvis 

 projects through the skin as a prominent spine and the dorsal 

 and anal fins are preceded by procurrent spines. Vertebrae 

 30-31. Branchiostegals 6 or 7. Gill-rakers of moderate 

 length or long. Ventrals absent. The name Rhombus was 

 proposed considerably before 1800 for a genus of MoUusca, 

 and Pejnilus must therefore be used for this genus. There 

 apj)ear to be five well-marked species — P. paru, paloineta, 

 medius, simtllimus, and triacanihus — which are completely 

 described in Jordan and Evermann, ' Fishes of North America/ 

 vol. i. ]■>. 905. 



