ZOOLOGY OF FERWAKDO NORONHA. 
483 
PISCES. 
By G. A. Boulenger, F.Z.S., 
Assistant in tlie Zoological Department, British Museum. 
The following marine species were obtained : — 
Apogon imberbis, \j.,Hcemulon cbrysargyreum, Gunther, Holocen- 
trum longipinne, C. & V., AcantTiarus chirurgus, Bl., Dactylopterus 
volitans , L., Gobius sopor citor, C. & V., Salctrias atlanticus , C. & V., 
Salarias vomerinus, C. & V., Clinus nuchipinnis, Q. & G., Olinus 
delalandii , C. & Y., Gobiesox cephalus, Lacep., Pomacentrus 
leucostictus, M. & T., Glyphidodon saxatilis, L., Rhomb oidichthys 
lunatus , L., Hemirhamphus unifasciatus, Banz., Clupea humeralis , 
C. & V., Murcena pavonina, Bich., Murama vicina , Cast., Murcenct 
catenata , Bl., and the new sjoecies described hereafter. 
JtJXIS NORONHANA, Sp. n. 
D. A. L. lat. 27. L. tr. y. 
Length of head one third of the total (without caudal), 
or a' little less; depth of the body one fourth. Dorsal spines 
shorter than the rays. The length of the ventrals is two thirds 
or three fifths that of the pectoral, which is shorter than the 
head. Caudalis truncate. Upper half of body and caudal 
blackish, lower half yellowish white (in spirit) ; a whitish streak 
along each side of the back, just above the lateral line ; dorsal, 
anal, pectoral, and ventral fins transparent, immaculate; a black 
spot between the first aud third dorsal rays. 
Several young specimens, the largest of which measures GO 
millim. 
The nearest ally of this species appears to be J. lucasona. 
MOLLUSCA. 
By Edgar A. Smith, F.Z.S., 
Assistant in the Zoological Department, British Museum. 
The total number of Mollusca now known from Fernando 
Noronha is 80, of which 72 are marine forms, 7 terrestrial, and 
1 freshwater. 
Previous to this expedition no land or fluviatile species had 
been collected, and only 28 marine forms, all obtained by the 
‘ Challenger,’ have been recorded from this locality. Ten of 
