16. HALIOPHIS. 389 



Each jaw on each side with more than forty small teeth. Body 

 brownish, uniform or irregularly marbled or spotted ; a black oceUus 

 on the operculum ; lower part of the cheeks with pearl-coloured 

 spots ; base of the dorsal and anal with bluish spots. 

 Coasts of Australia. Banka, Lepar. 



a. Adult : skin. Port Essington. 



6. Half-grown. Port Essington. Presented by the Earl of Derby. 



c. Adult. AbroUios. 



d. Adult: stuffed. West Australia. — Type of the sjDecies. 



e. f-h. Adult and half-grown. Australia. Presented by the Earl of 



Derby. 

 i. Half-grown. East Indian Archipelago. From Dr. v. Blocker's 

 Collection. 



2. Congrogadus nebulatus. 

 Machseriiun nebiilatum, Bleek. Singapore, p. 76. 

 B. 6. D. 77. C. 10. A. 65. 



The length of the head is contained eight times and a third in the 

 total. The dorsal fin commences above the end of the pectoral. 

 Each jaw on each side with about twenty-five teeth. Green, with 

 irregtilar brown and blackish spots. {Bleek.) 



Singapore. 



16. HALIOPHIS. 



Haliophis, Hilpp. Atlas Fische, p. 49. 



Body elongate, compressed, naked. The dorsal and anal fins ex- 

 tend to the base of the caudal ; ventrals none. Cleft of the mouth 

 of moderate width, with the lower jaw longest. Each jaw with a 

 series of curved teeth ; no teeth on the vomerine and palatine bones. 

 Branchiostegals four (?) ; gill-openings of moderate width *. Vent 

 remote from the head. Pyloric appendages none. An air-bladder (?). 



Red Sea. 



1. Haliophis guttatus. 

 RuppeU, I. c. p. 49. taf. 12. fig. 2. 



D. -!-. A. 40. C. 9. 



45 



The height of the body is three-fifths of the length of the head, 

 which is one-fifth of the total (without caudal). A narrow mem- 

 brane extends from the last dorsal and anal ray to the base of the 

 caudal. Operculum terminating in a small spine. Brown : body and 

 vertical fins with dark dots ; a blackish-brown ocellus above the base 

 of the pectoral ; a yellow streak from the origin of the dorsal to the 

 extremity of the snout. (Riipp.) 



Red Sea. 



* Riippell says, " Apertura branchialis parva"; but, by a comparison of the 

 figure, I am induced to suppose that, as in Congrogadus, the gill-opening is of 

 moderate width, the gill-membranes being united below the throat, and not 

 attached to the isthmus. 



