5. PETROSCIRTES. 231 



length of the head one-fifth. Snout obtuse, rounded, scarcely pro- 

 jecting beyond the cleft of the mouth ; tentacles none. The width 

 of the interorbital space equals the diameter of the eye. A small 

 straight canine tooth in the upper jaw. The dorsal fin is not elevated, 

 and commences on the occiput. Violet, with two bluish longitudinal 

 bands on each side ; fins yellow, the dorsal with seven, the anal with 

 five brownish blotches ; caudal with a large blackish spot at the 

 base. (Bl.) 



Sea of Amboyna. 



4. Petroscirtes taBniatns. 

 Aspidontus taeuiatus, Quoy 4* Gaim. Voy. Astrol. Poiss. p. 719. pi. 19. 



«?• 4; 

 Petroscirtes paradiseus, Blceker, Atuboina, v. p. 495. 



B. 6. D. 39. A. 26. 



The height of the body is one-sixth of the total length, the length 

 of the head one-fifth. Snout produced ; tentacle none ; the width 

 of the interorbital space is more than the diameter of the eye. The 

 dorsal fin is not elevated, beginning before the gill-opening and 

 terminating at the root of the caudal. A black longitudinal band 

 from the snout through the eye to the caudal, becoming 'broader 

 posteriorly, and occupying the middle of the caudal fin. 



Coasts of Amboyna, Goram, New Guinea, and Gufrm. 



5. Petroscirtes filamentesus. 



Blennechia filanientosus, Cuv. Sf Vul. xi. p. 280. pi. 326. 

 Petroskirtes rostratus, (^Solmidei-) Bleek. Act. Soc. Sc. Indo-Nedoi. ii., 

 Amboiua, p. 62. 



D. 3G-37. A. 26-28. V. 3. 



The height of the body is one-seventh of the to tal^ length, the 

 length of the head one-fourth. The snout is somewhat elongate, 

 longer than the eye, and has the upper profile, nearly horizontal. 

 The anterior rays of the dorsal fin are elongate and filamentoiis ;'the 

 dorsal does nut extend on to the caudal. A blackish longitudinal band 

 from the snout through the eye along the side of the body ; vertical 

 fins blackish, the catidal with the upper and lower margins, the anal 

 with the lower one whitish. 



Coasts of New Guinea and Amboyna. 



6. Petroscirtes pimctatus. 

 Blennechis pimctatus, Cuv. 4" Val. xi. p. 286. 



D. i^. A. 23. 



22 



The height of the body is contained six times in the total length, 

 the length of the head five times and a half. Snout sliort ; the 

 iipper canine tooth one-half the size of the lower. Tlie dorsal fin 

 extends on to the root of the caudal. Greyish, with tliiee hmgitii- 

 dinal series of small blackish s])ots, the uj)por along the base of the 



