300 DEEP SEA FISHES. 
The branchiostegal rays serve to distinguish this species from any other 
at present known. 
Station. Latitude. Longitude. Depth. Temperature. Bottom. 
3394 Th AAS 79° 35’ W. 511 fathoms 41.8° F. Dk. gn. M. 
3396 YO BEF INT 78° 36’ 30” W. bo 47.4° F. Hrd. gy. M.S. 
3354 7° 09 45” N. 80° 50’ W. 322 ce 46° F. Gn. M. 
NOTACANTHOIDS. 
The eleven known species of the Notacanthoids represent three genera, 
Polyacanthonotus, Notacanthus and Lipogenys. So far as now determined 
members of the group occur in the Mediterranean and the neighboring parts 
of the Atlantic, in the northwestern Atlantic, at the south of Japan, at the 
south of Australia and New Zealand, off the southwestern coasts of South 
America, in Bering Sea, and, from the material at hand, in the eastern part 
of the tropical Pacific. None have yet been reported from the Indian Ocean, 
or from the southern Atlantic. The greatest depths were those for Polya- 
canthonotus Challengeri Vaill., taken by the ‘Challenger,’ south of Yedo, 
Japan, at 1875 and 1625 fathoms, and by the “ Albatross,” west of the Pribi- 
lof Islands in Bering Sea, at 1401 fathoms, the nearest approach to which is 
’ 
a depth of 1209 fathoms measured by the “ Talisman” in the Mediterranean 
Sea. All of the other depths are less than a thousand fathoms. As has 
already been pointed out by Giinther in the case of Notacanthus sexspiis 
some of the species are doubtful additions to the list of deep sea fishes. 
Others have more of the appearance of such fishes as are commonly believed 
to live at considerable distances from the surface at the mtermediate depths. 
In the case of a few there is little reason to doubt that they dwell near to or 
at the bottom. 
This collection includes the types of a new species, described and figured 
below, the nearest allies of which are Notacanthus analis from the western 
Atlantic, N. Bonapartii from the Mediterranean and WV. Moseleyi from the 
southwestern coast of South America. 
