36 APPENDIX. 
“COeratias holbolli” —a deep-sea fish. Only a few examples have 
been found near the coast of Greenland and from the mid-Atlan- 
tic, the latter at a depth of 2,400 fathoms. Deep black. 
“ HIMANTOLOPHUS.—Head and body compressed and elevated ; 
cleft of the mouth wide, oblique; eyes very small; teeth of the 
jaws rasp-like, depressible; palate toothless; skin covered with 
conical tubercles. The spinal dorsal is reduced to a single ten- 
tacle on head. The soft dorsal and caudal and pectoral short. 
Ventrals, none. Three and a half gills. Skeleton soft and 
fibrous. 
“This is another deep-sea form, hitherto found in very few 
examples in Arctic and mid-Atlantic ocean. The single tentacle 
is beset with many long filaments at its extremity, thus answer- 
ing the same purposes which is attained by a greater number of 
tentacles. Deep black.” 
I now give the dimensions of our fish, with remarks : 
feet. in. 
The length from snout to caudal fin is.......... 
The depth/ot the bodys] ...\2)...9 Cen ee aoe 9 
Whetourthises fee c sks ee iat ee ee eee eee 2 
’ Head—from snout to gill opening, the length is. . 9 
The mouth is open. Its vertical measurement... 34 
ts width ais. 2c: tees 24 
The eyes are small. Interorbital space is...... . 4 
Teeth in the jaws rasp-like, depressible. Skin covered with 
numerous prickles (conical tubercles), a few pointed, the greater 
number truncated with perforations in the tops. The sides of the 
head and its inferier part have only afew. The spinal dorsal is 
reduced apparently to one long isolated spine on the head. On 
the back is a space without tubercles, having the skin, so as it 
might have accommodated another spine of some sort. 
The dorsal fin has‘a width of ............. eae 0200, 
It has four rays—the length of the 5rd and 4th is 4 “ 
Thevanal jin has a width otis cesar ik ekki 246 
It has four tays—the largest 18.......1....-4.-. 4“ 
The caudal fin is long and broad; the length of 
thevupper Tay 15 bs .)is SNe ete ela ce fn ee 
OESUDEMOWEE oo oui. gel ies «sore be ene eee eigen ta 3 
It has eight rays, the four middle ones are dichotomous. They 
are broad and coated with flesh, etc. Skin having prickles and 
