1886. ] NEW PEDICULATE FISH. 141 
should be added one or more accessory teeth, which are quite short, 
and are situated immediately at the base of the longest teeth ; pro- 
bably these accessory teeth are meant to supplant the others 
when these are shed or lost, which may often happen when devouring 
the huge prey. 
In the intermaxillary, the longest teeth in front have a length of 
6 millim., and are quite straight (on the left side it is not fully 
developed) ; the other teeth are shorter, not more than 3 millim. 
long. The total number of teeth in each intermaxillary is 8 or 9, 
to which must be added 2-3 accessory teeth situated at the base of 
the longest. 
In the lower jaw the two foremost teeth (and the 4th) are parti- 
cularly long, the others somewhat shorter. In each half jaw there 
are seven teeth, to which must be added the two accessory teeth 
situated at the base of the longest. The innermost tooth in the jaw 
is quite small. 
Of the two long front teeth, the first is somewhat shorter than the 
second, considerably curved ; its length is 4°5 millim. The second 
is the longest of all the teeth ; itis 8 millim. in length, and is also a 
little curved. It is placed a little inside of the row of other teeth, 
and has a short tooth at its base. The fourth has a length of 5 
millim., and it also has an accessory tooth; the others are shorter. 
The upper pharyngeal bones have each a group of about six teeth 
forming two long irregular rows. The lower pharyngeals do not 
appear to have teeth. 
The vomer has a single tooth, which, like the pharyngeal teeth, 
is about the length of the shorter teeth in the jaws, and is slightly 
curved. 
Cephalic spine.—The first dorsal appears as a single tentacle on 
the forehead (the cephalic spine). Its basal element is not sub- 
cutaneous and procumbent, but erect and continuous with its distal 
part. When laid back its bulb reaches to the hind margin of the eyes, 
or just between the two orbital spines, in which position it fills up 
the concavity on the forehead. It is situated at the front margin of 
the snout. Its length is 10 millim., of which half comprises the 
peduncle, which is rather thick, especially towards its base, the other 
half the head, which forms an oblong bulb, the breadth of which is 
3 millim., or about the same as the diameter of the eye. 
The bulb ends in a pair of exceedingly short and slender threads, 
which, in a good light, can be seen to have small papilla-shaped 
bodies on one side, of the same kind as the papille on the guttural 
tentacle, but much smaller (probably answering to the “scales” 
which, according to Liitken, cover the threads of the tentacles of the 
Himantolophoids). The colour of this cephalic spine is jet-black as 
far as the middle of the bulb; its other half is white (perhaps silvery 
in the living specimen), as in most or all the other species of the 
Ceratiidee. 
The jfins.—The second dorsal is situated far behind, close into the 
caudal fin, although separated from it by a distinct space. It has 
three single rays, which at their base are enveloped with a thick 
