ZOOLOGY OF FERT^ANDO NORONHA. 



483 



PISCES. 



By G. A. BotTLENGER, F.Z.S., 

 Assistant in the Zoological Department, British Museum. 



The following marine species were obtained : — 

 Apogon imherbis,h.,II(emulon chr^sargi/rem?i,Qimthev, Holoeen- 

 trum longipinne, C. & Y., AcantJiariis chirurgus, Bl., Dactglopterus 

 voUtans, L., GoUus so])oraior, C. & V., Malarias atlanticus, C. & V., 

 Salarias vomerinit^s, C. & Y., Clinus nucJiipinnis, Q. & Gr., Clinus 

 delalandii, C. & Y., Gohiesox ceplialus^ Lacep., Pomacentriis 

 leucostictm, M. & T., Glypliidodon saxatilis, L., JRJiomhoidichthys 

 lunatus, L., Hemi7'hamphus unifasciaUis^'R^nz., Clupea Jiumeralis, 

 C. & Y., Murcena pavonina^ Bich., Murcena vicina, Cast., Murcpna 

 catenata^ BL, and the new species described hereafter. 



JULIS NORONHANA, Sp. n. 



D. A. L. lat. 27. L. tr. f . 



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 and third dorsal rays. 



Several young specimens, the largest of which measures GO 

 millim. 



The nearest ally of this species appears to be J. lucasana. 



MOLLUSCA. 



By Edgar A. Smith, T.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 tin's ex])edition 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 



