COMPAllATIVE STUDY OF SCOMBROID FISHES. 4X9 



Cliii'lly fonntl oil tho coast i)f tin- s mtliwoskTu purt uf our CDuntry, iu Kyushyu 

 !in(l Clioseii. Mort' or less iibuucluut iu the Jfipau Sea. Not fouud iu the 

 clear warm water of the Kuroshiwi >. It is said that this specits is ofteu found 

 at a spot where two cun'cuts of water meet iu violent commotion, ami this 

 species seems to havt? habits similar to sjiearfisiies. 



Whether Scomber sinense LACEpfeDE and Cijhium cJiinense Cdvier are 

 syu(juyms of this species is not quite certaiu, ixs their descriptions being 

 foundetl on a Cliincso picture are very poor; but so far as we know there is 

 no other species in the orioutal watei-s than the present one which lias the 

 lateral line beut beneath the first dorsal. Therefore the Cliinese picture on 

 wliich these species were founded will probably represent this species. 



Cybium guttatum Cuv. & Val. 

 Kiihpah. 

 Fig. 61. 



? Scomber guttatus, Bloch, Schneider, 23, Taf. 5, 1801. 



Cjbium (jaltatum, Cuv. & Val., Hist. Nat. Poiss. VIU, 173, 1831 ; Giiuther, Cut. H, 371, 



1860; Day, Fish, India, -255, PI. LV, Fig. 1, PI. LVI, Fig. i; Cantor, Malay Fish., 



Ill, 1849; Kishinouye, Siii. Gak. Ho, I, 379, 1916. 



D. 1(3, 19 or 20, 8 or 9. A. 21, 8. Gill-rakers 2 + 8. Ycrt. 21 + 30. 



Body olougatod, laterally compressed, aud nearly naked outside of the 

 corselet. Caudal portion long and broad. Secoud dors.al, tuial, aud the caudal 

 well developed, but the pectorals are small. Teeth iu jaws sharp, about 17, 

 miuute teeth ou the vomer, palathies, and the tougrie. Latei'al line is nearly 

 sti'aight with a sh'ght beud, a little before the caudjil keel. Numerous short 

 brauches are fouud in the autt^rior h;ilf. They are oblique, closely set, and sxe 

 longer towards the nape, diverging backward. The scales on the lateral line 

 are about 170. 



Tlie right lobe of the liver is Lirge, while the middle lobe is short and 

 narr(}w. lutc-stiue is skuckr with a l<>:>p at the middle. Tlie iuuer -wall 

 of the stomach has about twenty k)ugitudiual folds, half the number of which 

 are smaller and afemate with the larger. Pjkffus descending, stump at the 

 distill end, aud communicates with the duodenum by a very uarrow opening. 

 Tlie duodeumu is nearly as loug as the pylorus, wide at the fore end, ^vith ono 

 anterior pyloric canal aud another large posterior canal. Air-bladder wanting. 



