310 On the Dathyhial Fishes of the Arabian Sea. 



The maxilla docs not quite reach the vertical through the 

 anterior margin of the orbit. 



The pterygoid band of teeth is very broad and not con- 

 tinuous with the palatine band. 



Eight moderately long gill-rakers on the middle of the 

 first arch, besides some small ones above and below. 



Scales extremely deciduous, those on the lateral line larger 

 and more adherent than the rest, measuring \ of an inch in 

 diameter ; with a small central perforation ] thirty between 

 the gill-opening and the vent. 



The dorsal fin begins rather more than an eye-length be- 

 hind the level of the ventrals. 



Seven large pyloric creca in a longitudinal row embracing 

 the ascending limb of the stomach. 



Colours in the fresh state : — Body and fins uniformly dark 

 sepia-brown. 



Two female specimens, 20 and 21 inches long. 



Station 104, 1000 fathoms. 



I have thought it sufficient to indicate simply the diagnostic 

 points of this species, which I have named after the accom- 

 plished hydrographer in charge of the Survey. 



Family Muraenidae. 



Group Anouillina. 



Promyllantok, gen. nov. 



Allied to Congromurcena. 



Body stout, with the muscular and osseous systems well 

 developed. Tail about as long as the trunk. Muciferous 

 cavities of the head well developed. Eye rather small. 

 Cleft of the mouth narrow, not extending behind the middle 

 of the eye. Villiform teeth in broad bands in the jaws and 

 in a broad confluent patch on the palate. Tongue free. 

 Nostrils lateral. Gill-openings widely separate ; four gills 

 with wide clefts. No scales. Pectoral and vertical fins well 

 developed, the latter confluent. The dorsal begins some 

 distance behind the occiput. 



15. Promyllantor purpureus, sp. n. 



The head is ^, the tail a snout-length over half the total ; 

 the body is massive, its greatest height equals the length of 

 the postorbital portion of the head. 



Head with its muciferous cavities highly developed, low, 

 broad, inflated, ending iu a broad, pointed, swollen snout, 



