COiU'.VRATIVE STUDY OF SCOMBROID FISHES. 412 



Tliis {^I'lius couiprisi>3 a rather aberrant forin, luoro or less related tij the 

 Xiphiidjui. Bod^' elongated, niort; or less compressed, aud covered with sjimll 

 narrow scales. Pivniaxillaiy pnxiuced anteriorly. Preorbital forms the jwsteri- 

 or half of the np]K>r jaw. Tinth triangular, cjmpressetl, aud clo.^ly set. 

 Branchial lamellae aiv rc-ticnlated at the proximal part. Gill-rakers absent. 

 iDtermiiscnlnr Iwnes aw hiserted on ril«. The first rib is found on the second 

 vertebra, not ou the third as in the other. Moreover the rib is shorter than 

 the iutenuuscular Ixiue iuseited on it. No auxiliary' intermuseuhir bone, and 

 the fii-st hitormnsfular Ixjne is inserted on the first vertebra. Pelvic girdle 

 broad. 



Pelagic iuid pi-edjiceous fish of aiiout two metres. Tropical and subtropical 

 seas of the Pjxcific and Atlantic. 



Acanthocybium solandri (Cuv. & Vid.) 



Kamasnsawara, ökamasu, okisawara, sawara (Kochi-ken, Kyushvu, 



Ogiisawara Is.), tessahku (Taiwan), fajjinsawara. 



Figs. 10, 31, 39. 



erbium solandri, Cuv. .t Val.. Hist. Nat. Poiss. VIII. 192, 1831. 



? Cybittm sara. Bennett, Beechy's Voyage, Fish. 63, PI 2% Fig. 2, 1839. 



Acuntlinn/biwii solamlrl, Jenkins, Bull. U. S. Fish. Com., X\I[, 441, 1904; Kishinouye, 



Dobutsu. Z.18. XX, 2, PI. 2, Fig. 2. 19US. 

 ? AcimtliOcybimn forbesi, Seivie, PhlUp. .lourn. Sei. Biol. VII, 283, 19)2. 

 AcantliDcybitim iara, Kisbinouye, Sui. Gak. Ho, I, 9, PI. I, Fig. 2, 1915. ' 



B. 7. D. 26, 11, 9. A. 11, 9. Vert. 23-33 + 31. Gill-rakers O. 



Body elongated and compressed, covered with tliiu small lanceolate scales. 

 Corselet indistinct. First doisal well developed, descending near the jwsterior 

 end, but its greater part has nearly the same breadth. Second dorsal and 

 the anal very small. Caudiil fin lunate and powerful. Lateral line is suddenly 

 and stronglj- curved, under the middle of the firet dorsal. Many vei-tical 

 branches ai'e given ofi" from Ijoth sides of the lateral line. Those branches 

 found in the posteiior half of the body are longer and more numerous. In 

 each jaw about 50-55 ti-iiuigular ttxith, which gradually increase in size poster- 

 iorly. Vomer and palatines with villous teeth. First rib ou the second 

 vertebra (Starks (69) found the first rib on the third). 



Stomach conical and very long, rejujhing a Uttle behhid the anterior end 



