392 sTERNorrYcniD.E. 



6. CHAULIODUS. 



Cliauliodiis, Bl. Svhn. p. 430. 



Body elongate, compressed, covered vnih. exceedingly thin and 

 deciduous scales ; series of luminous (phosphorescent) spots run along 

 the lower side of the head, body, and tail. Head much compressed 

 and elevated, with the bones thin, bvit ossified, and with the oper- 

 cular portion very narrow, the interoperculum being rudimentary. 

 Cleft of the mouth exceedingly wide, the intermaxillary forming one- 

 half of the margin of the upper jaw. Each intermaxillary with four 

 long canine teeth ; edge of the maxillary finely denticulated ; man- 

 dible with pointed, widely set teeth, the anterior of which are ex- 

 ceedingly long ; none of the large teeth are received within the 

 mouth. Palatine with a single series of small pointed teeth ; no 

 teeth on the tongue. Eye of moderate size. Pectoral and ventral 

 fins well developed. Dorsal fin anteriorlj' on the trunk, before the 

 yentrals ; adipose fin small, sometimes fimbriated ; anal short, rather 

 close to the caudal, which is forked. Gill-opening very wide, the 

 outer branchial arch extending forward to behind the symphysis of 

 the lower jaw; it has no gill-rakers. Branchiostegals numerous; 

 pseudobranchise none. 



Mediterranean. 



1. Chauliodus sloanii. 



Cateshy, Carol., Siippl. p. 9. pi. 9. 



( 'haidiodus sloani, £1. Schn. p. 430 ; Cuv. ^ Veil. xxii. p, 383. 

 Choliodus setinotus, Bl. Schn. tab. 85. 

 Esox stomias, Shaw, Zool. v. p. 120. tab. 3. 

 Chauliodes schneideri, Bisso, Eur. Merid. iii. p. 442. fig. 37. 

 Chauliodus setinotus, Bonap. Faun. Ital. Pesc. c. fig. 

 Stomias schneideri (Stomias boa), Cuv. Bh/ne Antm. Bl. Poiss. pi. 97. 

 fig. 3 (incorrect). 



B. 16-18. D. 6. A. 12. V. 7. L. lat. 55-57. 



Head not much longer than high, its length being one-seventh of 

 the total (with the caudal), and equal to the distance between the 

 vent and the root of the caudal. The distance of the dorsal from 

 the occiput is less than the length of the head, and its first ray is 

 produced into a long filament. Ventral fins prolonged, much longer 

 than the pectorals. There are thirty phosphorescent dots in a series 

 running from the chin to the root of the ventral fin. The scales 

 along the belly are of a subhexagonal shape. 



Mediterranean. 

 a. Type of the species : 10 inches long. Straits of Gibraltar. 

 b-e. Half-grown and young. Messina. 



