11. CHORINEMUS. 471 



1. Porthmeus argenteus. 

 Cuv. 4- Val. ix. p. 256. pi. 264. 



A ciliated crest above the orbit. The height of the body is one- 

 fourth of the total length, the length of the head one-third. Snout 

 very pointed. Body with blackish vertical bands. (Cuv.) 



Indian Ocean ; Cape of Good Hope. 



11. CHORINEMUS*. 



Scomberoidea, Lacep. 



Chorinemus, Cuv. ^ Val. viii. p. 367. 



Body compressed, oblong ; cleft of the mouth moderate or wide. 

 Dermal productions small, lanceolate, hidden in the skin. Two dor- 

 sals : the first formed by free spines in small number ; the posterior 

 rays of the second dorsal and of the anal fin detached or semi- 

 detached, penicillated. Two anal spines, separated from the soft 

 portion. Small teeth in the jaws, on the vomer and the palatine 

 bones. Bran chiostegals seven (eight); pseudobranchise present; air- 

 bladder bifurcate posteriorly. Pyloric appendages in great number. 



Tropical parts of the Atlantic ; Indian Ocean and Archipelago. 



1. Chorinemiis lysan. 



? Dampier, Voy. New Holland, i. pi. 3. f. 5. p. 162. 

 Scomber lysan, Forsk. no. 67. pi. 54. 



forsteri, Bl. Schn. p. 26. 



Scomberoides commersonianus, Lacep. ii. pi. 20. f. 3. 



Russell, ii. p. 31. pi. 141. 



Scomber niadagascariensis, Shaw, Zool. iv. p. 590. pi. 85; Bennett, 



Life o/BaJtes, p. 689. 

 Lichia lysan, Biipp. Atl. Fische, p. 91. 

 Chorinemus commersonianus, Cuv. 8f Val. viii. p. 370; Bleek. Verh. 



Bat. Gen. xxiv. Makr. p. 44. 

 lyzan, Cuv. 4' Val. viii. p. 887 ; R'dppell, N. W. Fische, p. 44 ; 



Cantor, Catal. p. 118. 

 ? Chorinemus farkharii, Cuv. 8f Val. viii. p. 388. 

 Chorinemus aculeatus, Cuv. 8^ Val. viii. p. 384 (not Bloch). 

 forsteri, Richards. Ann. 8f Mag. Nat. Hist. 1843, xi. p. 24. 



B.8. D.TI^L. A.2|i. Vert. 15. 



The height of the body is four times in the total length, the length 

 of the head 5|. The upper maxillary is very slightly widened and 

 rounded posteriorly, and reaches far beyond the vertical from the 

 posterior margin of the eye. The length of the intermaxillary is 



* 1. Chorinemus exoletus, (Ehrenb.) C ,v. ^ Val. viii. p. ?79. — Red Sea. 



2. lanceolatus, Crirard, Free. Ac. Nat. So. Philad. 1858, p. 168. — Texas. 



3. tol, Bleek. Verh. Bat. Gen. xxiv. Makr. p. 43 (not Cuv.). — Batavia. 



4. leucophthalmus, Bichards. Ichfh. China, p. 269. — Canton. 



5. delicatulus, Richards. I. c. — Chinese Seas. 



