340 DEEP SEA FISHES. 
coasts of Europe, of the northeastern United States, of southern South Amer- 
ica and of Japan. ‘To this the present material adds a new species of Myx- 
ine from the Gulf of Panama. 
No vertical distribution has been recorded with Geotria, Mordacia and 
Homea. Off the eastern United States Petromyzon (Bathymyzon) Bairdii Gill., 
was taken by the vessels of the United States Fish Commission at a depth of 
547 fathoms; they also took P. marinus at a depth of 247 fathoms. Myzine 
glutinosa Linn. was taken by the French Government Steamer “ Travailleur ” 
off the coast of Portugal at 251 fathoms, JZ. cirrhata Schleg., was secured by 
J 
the British Steamer “Challenger” off the coast of Japan at 345 fathoms, 
and M. limosa Gir., was captured off the eastern coasts of the United States 
by the U. 8. Coast Survey Steamer “ Blake” at 524 fathoms. The greatest 
depth yet found for any member of this group is that at which the “ Alba- 
tross’” took the new species described and figured below, 730 fathoms in 
the Gulf of Panama. Wherever they have been taken there is reason to 
believe these fishes live at the bottom. The presence of Myxinoids being 
established at great depths and in very low temperatures it may confi- 
dently be expected that future collection will obtain them from all regions 
inhabited by other deep sea fishes on which they may prey. 
In the year 1835 Miiller subdivided the group thus: 
Nasal duct not penetrating the palate. Hyperoartia. 
Nasal duct penetrating the palate. Hyperotreta. 
Hyrrroartia Miiller, 1835. 
As no representatives of this section of the Myxinia are included in the 
collection the species belonging to the Hyperoartia are introduced in the 
list only in connection with the general distribution. Omitting the fresh 
water forms there are only eight species to be considered. 
Hyperotreta Miiller, 1835. 
One branchial aperture on each side of the body. _Myainidee. 
Six or more branchial apertures on each side. Honeide. 
MYXINID ZA. 
Myzxinide Bonap., 1845, Spece. Gen., 11. 
To the Myxinide previously known the “ Albatross” collection adds a 
single new species. For several reasons the addition is of particular 
