5. KERis. 355 



lines. 



Length of the abdominal portion 20 



— ^ of the caudal portion 38 



of the eleventh neural 8 



Width of the curve of the haemal bone 25 



9. Naseus hexacanthus. 



Priodon hexacanthus, Bleek. Amboina, vi. p. 421. 



The height of the body is one-third of the total length ; the upper 

 profile of the snout nearly straight. Teeth denticulated at the extre- 

 mity, sixteen to twenty on each side of the jaws. Tail with two 

 small laminae on each side, wliich are not keeled. Brown : dorsal fin 

 with three, anal with two blue longitudinal stripes. {Bleek.) 



Amboyna. Batu. 



10. Naseus tapeinosoma. 

 Priodon tapeinosoma, Bleek. Amboina, v. p. 494. 



The height of the body is contained thrice and a third in the total 

 length ; the upper profile of the snout nearly straight. Teeth den- 

 ticulated at the extremity, about twenty on each side of the upper 

 jaw. Tail on each side ^vith two small laminae, which are not keeled. 

 Brown : vertical fins edged with yeUow ; anal with two dark-brown 

 longitudinal streaks. (Bleek.) 



Amboyna. 



11. Naseus thjnmoides. 



Axinm-us thjoinoides, C'uv. ^- Val. x. p. 299. pi. 293 ; Ctiv. Bigne Anim. 



III. Pom. pi. 74. fig. 3. 

 Naseus thynnoides, Bleek. Act. Soc. Sc. Indo-Nederl. ii., Amboina) p. Gl. 



D.^-gl^,. A.^-^^. C^c.pylor.3. 



The height of the body is nearly one- third of the total length (the 

 caudal fin not included). Only one trenchant lamina on each side of 

 the taU. Teeth very small, tapering, not serrated. The upper pro- 

 file of the snout convex. Greyish : dorsal and anal fins with oblique 

 dark lines. 



Seas of New Guinea and Amboyna. 



a. Fine specimen. Amboyna. Purchased of Mr. Frank. 



5. KERIS. 



Kens, Cuv. ^ Val. x. p. 304. 

 A single series of small teeth in the jaws. Tail without bony 

 laminae, in an adult state. Ventral fins composed of one spine and 

 three (five) rays. One dorsal fin, the spinous portion of which is 

 less developed than the soft, and composed of six spines ; anal spines 

 two. Branchiostegals four. 

 East Indian Archipelago. 



2 a2 



