172 MR. J. Y. JOHNSON ON NEW GENERA AND SPECIES [June 10, 
half the length of the first ray of the first dorsal; it falls about the 
middle, and then rises again, its termination being prolonged and 
pointed. The specimen has been wounded in the back during its 
life, and, though the wound has healed, a few (but probably not 
more than two or three) of the rays have been carried away. The 
remaining rays are forty-eight in number. None of the dorsal or 
anal fins are fleshy, neither are there any scales upon them. The 
pectoral fins are inserted a little in front of the first dorsal, and 
rather above the middle of the height ; their apices are pointed, and 
they are of moderate length, reaching back beyond the commence- 
ment of the anal fin. The jugular ventral fins are forked, the longer 
division becoming filiform and reaching back considerably beyond 
the commencement of the anal fin, and a little beyond the tips of 
the pectoral fins. These fins are longer than the head, and, compared 
with the total length of the fish, they are as 1 to 35. The difference 
between the lengths of the two divisions of the ray is to the length 
of the longer as 1 to 43. The vent is surrounded by a black ring, 
and is placed under the fourth ray of the second dorsal fin. The 
anal fin commences under the seventh or eighth ray of the second 
dorsal fin. It is highest in front; at the middle it falls in, and then 
ends a short distance in front of the second dorsal with an acute 
prolongation. The caudal fin is truncate, and rather more than a 
ninth of the total length. The tail is much compressed and atte- 
nuate. The lateral line is a groove that forks above the opercle. 
After the junction of the divisions it rises a little, and then falls gra- 
dually ; but under the anterior portion of the second dorsal fin there 
is a rapid descent, after which it is straight along the tail. 
The single example on which this species has been founded was 
taken near Madeira, in the month of March, and is now in the 
British Museum. Its dimensions, expressed in inches, are given in 
the following table :— 
Total lenptht Saco i esse ce derece eens « .ee 142 
Height under first dorsal...............--..0-5 33 
Thickness near base of pectorals.......... 02.00 2 
Head .... oe 2 : 3h 
Bye, diameter .. 2... -. 0. eee eee e eee teens Yo 
Mouth, width from side to side ................ 12 
Barbel, tenets. fn eel eens te ve gee cmos dh 
First dorsal fin, distance from snout ............ 34%) 
= == McHrein Of Lilet Tay). . free see rene 25 
pea, length of second fay"... egos fore 135 
DOT ea Se Tenet htor last ray", ee eee eine = pn wo 
Be ASE ORS” one eee. Cle ater ee 
Second dorsal, distance from first dorsal ........ 5 
Be , length of base ...... Sop SSoriainee + 8+ 
- ~, height in front ...... ode . 14 
Pectorals, distance from snout ..............., 4 
EMO teeta ts gia te eS 8 ere ee 2y5 
| VALINE DASEN a dates 2 sans See ese iy 
Ventrals, distance from tip of mandible, mouth open 2,5; 
MAC P eet = Se ee ON wee mice at nase 
