310 On the Bathybial Fishes of the Arabian Sea . 
The maxilla does 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 cseca 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 Mursenidae. 
Group Anguillina. 
Promyllantor, gen. nov. 
Allied to Congromuraena. 
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 in a broad, pointed, swollen snout, 
