8. ODONTOSTOMUS. 417 



7. SCOPELOSAURUS. 



Scopelosaurus, Bleek. Amboina, xi. p. 12. 



Body elongate, cylindrical, covered with cycloid scales of moderate 

 size, there heing about sixty in the lateral line ; series of luminous 

 (phosphorescent) spots run along the lower side of the body. Cleft of 

 the mouth wide ; intermaxillary tapering ; maxillary well developed. 

 Teeth small, in a single series in the intermaxillary, on the vomer 

 and the palatines, and in several series in the lower jaw ; tongue 

 without teeth. Eye large. Dorsal fin nearly in the middle of the 

 length of the body, behind the ventrals, which are ten-rayed. Bran- 

 chiostegals nine; pseudobranchise well developed. 



Amboyna. 



1. Scopelosaurus hoedti. 



Sleeker, I. c. p. 13. 



D. 10. A. 17. P. 13. V. 10. L. lat. 61. 



The height of the body is contained eleven times and three-quarters 

 in the total length (with the caudal), the length of the head four 

 times and three-fifths; the depth of the head is two-fifths of its 

 length ; the diameter of the eye is contained thrice and one-third in 

 the length of the head, and rather less than the extent of the snout. 

 Upper jaw shorter than the lower, and extending to below the hind 

 part of the orbit. (Blhr.) 



Amboyna. 



8. ODONTOSTOMUS. 

 Odontostomus, Cocco. 



Body oblong, compressed, naked ; head large and thick ; snout 

 short ; cleft of the mouth very wide ; intermaxillary and maxillary 

 bones very slender, the former with small curved teeth of equal size ; 

 the lower jaw, the vomer, and the palatine bones armed with long 

 moveable teeth, the points of which are lance-shaped. Eye large. 

 Pectoral and ventral fins well developed ; the iatter are inserted 

 below the dorsal, at some distance behind the base of the pectoral. 

 Dorsal fin in the middle of the length of the body ; adipose fin small ; 

 anal long ; caudal forked. Branchiostegals eight ; pseudobranchiae 

 small. 



Mediterranean. 



1. Odontostomus hyalinus. 



Odontostomus hyalinus, Cocco, Lett. s. Salmon, p. 32. tab. 4. fig. 2 ; 



Bonap. Faun. Ital. Pesc. c. fig. minus bona ; Ciw. fy Val. xxii. p. 424. 

 Scopelus balbo, Risso, Hist. Nat. Eur. Merid. iii. p. 466, and Mem. 



Accad. Sc. Torino, xxv. p. 268. pi. 10. fig. 3. 



D. 14. A. 28. P. 9. V. 8. {Bonap.) 

 B. 8. D. 12. A. 34. P. 10. V. 8. (Risso.) 

 B. 8. D. 12. A. 35. P. 12. V. 9. (Valenc.) 

 The length of the head is a little more than one-fifth of the total 

 vol. v. 2 E 



